WO2014087710A1 - 試験装置 - Google Patents
試験装置 Download PDFInfo
- Publication number
- WO2014087710A1 WO2014087710A1 PCT/JP2013/073901 JP2013073901W WO2014087710A1 WO 2014087710 A1 WO2014087710 A1 WO 2014087710A1 JP 2013073901 W JP2013073901 W JP 2013073901W WO 2014087710 A1 WO2014087710 A1 WO 2014087710A1
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- WIPO (PCT)
- Prior art keywords
- sliding floor
- base plate
- test apparatus
- air bearing
- magnetizing
- Prior art date
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
- G09B9/04—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/022—Vibration control arrangements, e.g. for generating random vibrations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/027—Specimen mounting arrangements, e.g. table head adapters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
- G01M7/06—Multidirectional test stands
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
- G09B9/08—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
- G09B9/12—Motion systems for aircraft simulators
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
- G09B9/02—Simulators for teaching or training purposes for teaching control of vehicles or other craft
- G09B9/08—Simulators for teaching or training purposes for teaching control of vehicles or other craft for teaching control of aircraft, e.g. Link trainer
- G09B9/12—Motion systems for aircraft simulators
- G09B9/14—Motion systems for aircraft simulators controlled by fluid actuated piston or cylinder ram
Definitions
- the present invention includes, for example, transportation equipment such as automobiles, motorcycles, trains, airplanes, ships, structures such as bridges, buildings, houses, and buildings, and structures to be tested such as these parts (hereinafter collectively referred to as “general names”).
- transportation equipment such as automobiles, motorcycles, trains, airplanes, ships
- structures such as bridges, buildings, houses, and buildings, and structures to be tested such as these parts
- structure under test a load test performed by applying an external force
- vibration test performed by applying vibration
- the present invention relates to a test apparatus for performing various tests such as tests (hereinafter collectively referred to simply as “tests”).
- a test apparatus there are an excitation test apparatus and a load test apparatus for the purpose of research and development of these structures to be tested.
- a driving simulation device (hereinafter also simply referred to as “driving simulator”) for simulating the driving state according to the driving operation of the operator. )
- the driving simulation device employs a 6-degree-of-freedom parallel mechanism called a so-called “Stewart platform (also called a hexapod)”, for example, and six telescopic links connected in parallel operate in cooperation. It is connected by a motion connecting mechanism that performs positioning with six degrees of freedom, and includes a platform on which a driven part such as a vehicle model is provided.
- Step platform also called a hexapod
- a rotational motion around each axis is added, that is, the front-rear direction, the left-right direction, the up-down direction, the roll ( It is configured to simulate the driving state according to the driving operation of the operator by reproducing the tilt motion of 6 degrees of freedom composed of six types of movements of Roll, Pitch, and Yaw. .
- Small amplitude motion at relatively high frequencies is reproduced by the Stewart platform, and large amplitude motion at relatively low frequencies is reproduced by the planar movement mechanism.
- Patent Document 1 Japanese Patent No. 4736592
- Patent Document 1 Japanese Patent No. 4736592
- a dome 108 having a vehicle model is provided on a platform 106 connected to a base 104 by a motion connecting mechanism 102 that performs positioning with six degrees of freedom. ing.
- a plurality of X-axis direction rails 110 arranged in the X-axis direction and a pair of Y-axis direction rails 112 movable in the X-axis direction on the X-axis direction rail 110 and arranged in the Y-axis direction are provided.
- a base 104 is arranged on the Y-axis direction rail 112 so as to be movable in the Y-axis direction.
- a so-called “linear guide” is formed, and the dome 108 equipped with the vehicle model is configured to be movable in the XY directions.
- Patent Document 2 Japanese Patent No. 3915122 discloses a driving simulator 200 as shown in FIG.
- a dome 208 having a vehicle model is provided on a platform 206 connected to a base 204 by a motion connecting mechanism 202 that performs positioning with six degrees of freedom.
- a plurality of air bearings 212 are provided on the lower surface of the base 204 so as to face the sliding surface 210.
- the base 204 can be moved in the X-axis direction by an X-axis direction moving device including a linear guide (not shown), and a Y-axis direction moving device (not shown)
- the base 204 is configured to be movable in the Y axis direction.
- the above-mentioned test apparatus gives horizontal motion (displacement, velocity, acceleration) to the structure under test, and simulates the actual usage status of these structures under test and vibrations during earthquakes and transportation. , For testing its performance and durability.
- FIG. 25 is a perspective view showing an outline of a vibration test apparatus as the conventional test apparatus 300 configured as described above.
- the test apparatus 300 includes a gantry 302, and a plurality of X-axis direction rails 304 are provided on the upper surface of the gantry 302.
- the X-axis direction bases 308 and 314 are connected to the X-axis direction actuator 312, guided by the X-axis direction rail 304, and movable in the X-axis direction by the operation of the X-axis direction actuator 312. It has.
- a plurality of Y-axis direction rails 310 are provided on the upper surface of the X-axis direction base 308. Then, the Y-axis direction actuator 306 is connected to the Y-axis direction rail 310, and the Y-axis direction actuator 306 is operated to move in the Y-axis direction.
- Y-axis direction base 314 is provided.
- test device can be used according to the driving operation of the operator for the purpose of research and development of transportation equipment such as automobiles, motorcycles, trains, airplanes, ships, etc. and the improvement of the driving ability of those who drive the transportation equipment. It is used as a driving simulator for simulating driving conditions, vibration tests, acceleration tests, and the like, and as a component of the driving simulator.
- the operation simulation test apparatus 100 of Patent Document 1 requires the X-axis direction rail 110 and the Y-axis direction rail 112 that are orthogonal to each other, and requires a large installation space for the apparatus. Further, the height of the apparatus increases, the mass of the platform 106 that is a movable part increases, and a large drive device is required, resulting in an increase in size.
- the base 104 is configured to be movable in the XY direction, but the base 104 rotates (Yaw motion) around the Z axis (vertical axis). It has a structure that can not be. For this reason, since it is necessary to reproduce all the operations required when the transportation device is turning on the 6-degree-of-freedom platform of the movable part, the platform further increases in size.
- the driving simulation test apparatus 100 of Patent Document 1 requires a large installation space and a driving device, and the cost increases. Further, it is impossible to reproduce high-frequency acceleration during the actual driving state, and it is impossible to simulate the driving state according to the actual driving operation of the operator.
- the frequency range that can be reproduced is 1 to 3 Hz even though the mass of the platform 206 that is a movable part is large, and vibration cannot be suppressed at a high frequency, so a heavier base Is required.
- the driving simulator 200 of Patent Document 2 requires a highly accurate slip surface as the surface of the slip surface 210, which increases the cost.
- the conventional test apparatus 300 as shown in FIG. 25 also requires the X-axis direction rail 304 and the Y-axis direction rail 310 which are orthogonal to each other, and requires a large installation space for the apparatus.
- the height of the device is increased, the mass of the movable part is increased, a large drive device is required and the size is increased, and high-frequency operation cannot be performed at high speed.
- the conventional test apparatus 300 as shown in FIG. 25 is configured to move in the XY direction, but the base rotates around the Z axis (vertical axis) (Yaw motion). It has a structure that can not be.
- the use of a linear guide has the disadvantages that noise is loud during high-speed movement and is easily worn at fine amplitudes.
- an object of the present invention is to provide a test apparatus capable of simulating a driving state according to an actual driving operation of an operator and testing an acceleration or the like according to the actual driving state. .
- the object of the present invention is that the platform, which is a movable part, is light in weight, has high rigidity, and can realize stable movement with a light base, and can perform simulation up to a high frequency with small power and small space.
- the object is to provide an inexpensive and compact test apparatus.
- the object of the present invention is that the weight of the base plate on which the structure to be tested, which is a movable part, is placed is light and rigid, and that a stable movement can be realized with a light base, which is high with small power and small space.
- An object of the present invention is to provide an inexpensive and compact test apparatus capable of testing up to a frequency.
- test apparatus of the present invention comprises: A test device for simulating the driving state according to the driving operation of the operator, A base plate that can be moved in the XY direction by air bearings on the sliding floor, and can be freely moved so that it can rotate around the Z axis; A platform connected by a motion connecting mechanism on the base plate and provided with a driven part; A magnetic adhesion device arranged on the lower surface of the base plate so as to face the sliding floor, and capable of changing a magnetic adhesion force on the sliding floor; In the operating state in which the air pressure of the air bearing is high, the magnetizing force on the sliding floor of the magnetizing device is strong, The non-operating state in which the air pressure of the air bearing is low is configured such that the magnetic adhesion force of the magnetic adhesion device to the sliding floor is weak.
- a platform provided with a driven part such as a vehicle model is connected to the base plate by a motion connecting mechanism that performs positioning with six degrees of freedom.
- the base plate is arranged so as to be freely movable so as to be able to move in the XY direction on the sliding floor by an air bearing and to rotate around the Z axis (Yaw motion).
- the base plate floats due to the air pressure of the air bearing, and an air layer is formed between the base plate and the platform connected to the base plate by the motion connection mechanism, and the platform can move on the slide floor with a minimum frictional force.
- the base plate is provided on the lower surface of the base plate so as to be opposed to the sliding floor, and is equipped with a magnetic adhesion device capable of changing the magnetic adhesion force to the sliding floor. It is comprised so that the magnetic adhesion force with respect to a sliding floor may be in a strong state.
- the magnetic force (magnetizing force) by the magnetizing device and the weight of the platform are combined, so that the air bearing is preloaded in the vertical direction, and the vertical reaction force / moment is taken into account, enabling stable simulation and testing.
- the platform is light in weight, rigid and stable with a light base, enabling simulation and testing up to high frequencies with small power and small space.
- the state is detected by the pressure sensor and the test apparatus is stopped, but the base plate moves a certain distance until the stop due to the influence of inertia.
- the magnetizing force of the magnetizing apparatus on the sliding floor is weak, the magnetic force does not act, the frictional force can be reduced, the wear can be reduced, and the maintenance cycle of the test apparatus can be extended.
- the test apparatus of the present invention is A test apparatus for performing various tests by applying an external force to a structure under test,
- a base plate provided with a structure to be tested, which can be moved in the X and Y directions by an air bearing on the sliding floor and is freely movable so as to be able to rotate around the Z axis;
- a magnetic adhesion device arranged on the lower surface of the base plate so as to face the sliding floor, and capable of changing a magnetic adhesion force on the sliding floor;
- the non-operating state in which the air pressure of the air bearing is low is configured such that the magnetic adhesion force of the magnetic adhesion device to the sliding floor is weak.
- a base plate on which a structure to be tested such as a house is placed can be moved on the sliding floor in the XY direction by an air bearing and rotated around the Z axis (Yaw motion). ) It is arranged to be freely movable so that it can.
- the base plate is provided on the lower surface of the base plate so as to be opposed to the sliding floor, and is equipped with a magnetic adhesion device capable of changing the magnetic adhesion force to the sliding floor. It is comprised so that the magnetic adhesion force with respect to a sliding floor may be in a strong state.
- the magnetic force (magnetization force) of the magnetizing device and the weight of the base plate and the structure under test on the base plate are combined, and the air bearing is preloaded in the vertical direction. Testing is possible.
- the weight of the base plate is light, the rigidity is high, and stable movement can be realized with a light base, and tests up to a high frequency are possible with a small power and a small space.
- the state is detected by the pressure sensor and the test apparatus is stopped, but the base plate moves a certain distance until the stop due to the influence of inertia.
- the magnetizing force of the magnetizing apparatus on the sliding floor is weak, the magnetic force does not act, the frictional force can be reduced, the wear can be reduced, and the maintenance cycle of the test apparatus can be extended.
- test apparatus of the present invention is characterized in that the magnetic adhesion device is configured to be able to be separated from and connected to a sliding floor, and the strength of the magnetic adhesion force to the sliding floor is configured to be switchable.
- test apparatus of the present invention is characterized in that the magnetizing apparatus includes a magnet member configured to be able to be separated from and attached to the sliding floor.
- the magnetic force suitable for the test apparatus can be adjusted by adjusting the gap between the magnet member and the sliding floor.
- the device is stopped when the air pressure of the air bearing is low, but the base plate moves a certain distance until it stops due to inertia.
- the magnet member which is a magnetizing device, moves in a direction away from the sliding floor, so that the magnetizing force on the sliding floor becomes weak, so that the magnetic force does not act, and between the sliding floor and the magnet member Since the distance is separated, the frictional force can be reduced, the wear can be reduced, and the maintenance cycle of the test apparatus can be extended.
- test apparatus of the present invention is characterized in that the magnet member is composed of a permanent magnet.
- the magnet member is composed of a permanent magnet
- an inexpensive permanent magnet can be used as the magnet member of the magnetizing apparatus, and the cost can be reduced.
- no power is required to generate a magnetic force, energy consumption is reduced.
- the magnetizing apparatus can include a magnet member composed of an electromagnet.
- the magnitude of the magnetic force can be changed by changing the magnitude of the current to the electromagnet, and the control becomes easy.
- the magnet member is composed of a plurality of magnet members, and these magnet members are arranged so that the directions of the poles are perpendicular to each other. .
- the magnet members are arranged so that the directions of the poles are perpendicular to each other, the resistance due to the eddy current in each movement direction (XY direction, Yaw rotation) can be made the same. Accurate, simulation and testing can be carried out.
- a plurality of air bearings are provided on the lower surface of the base plate via a spherical seat, A plurality of magnetizing devices are provided corresponding to the plurality of air bearings.
- the entire base plate is even, and the air pressure of the air bearing causes the base plate to float and create an air layer between it and the sliding floor.
- the platform connected to the base plate by the motion connecting mechanism can move on the sliding floor with a minimum frictional force.
- the preload state in the vertical direction of the air bearing in which the magnetic force (magnetizing force) by the magnetizing device and the weight of the platform are combined It becomes uniform over the entire base plate and handles reaction forces and moments in the vertical direction, enabling more stable simulations and tests.
- test apparatus is characterized in that a friction reducing process is performed on at least one of the surface of the air bearing facing the sliding floor or the upper surface of the sliding floor.
- polytetrafluoroethylene resin PTFE
- tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin PFA
- tetrafluoroethylene-hexafluoropropylene copolymer resin FEP
- polychlorotriethylene Fluoroethylene copolymer resin tetrafluoroethylene-ethylene copolymer resin, chlorotrifluoroethylene-ethylene copolymer resin
- polyvinylidene fluoride resin polyvinyl fluoride resin
- tetrafluoroethylene-hexafluoropropylene-perfluoroalkyl Paste a sheet made of fluorine resin such as “vinyl ether copolymer resin”, polyimide resin (PI), polyamide 6 resin (PA6), polyamideimide resin (PAI), peak resin (PEEK), etc.
- PI polyimide resin
- PA6 polyamide 6 resin
- PAI polyamideimide resin
- PEEK peak resin
- a platform provided with a driven part such as a vehicle model is connected to the base plate by, for example, a motion connecting mechanism that performs positioning with six degrees of freedom.
- the base plate is arranged to be freely movable so that it can be moved in the XY direction and rotated around the Z axis (Yaw motion) by an air bearing connected via a spherical seat on the sliding floor. ing.
- the base plate floats due to the air pressure of the air bearing, and an air layer is formed between the base plate and the platform connected to the base plate by the motion connection mechanism, and the platform can move on the slide floor with a minimum frictional force.
- the base plate is provided on the lower surface of the base plate so as to be opposed to the sliding floor, and is equipped with a magnetic adhesion device capable of changing the magnetic adhesion force to the sliding floor. It is comprised so that the magnetic adhesion force with respect to a sliding floor may be in a strong state.
- the magnetic force (magnetizing force) by the magnetizing device and the weight of the platform are combined, so that the air bearing is preloaded in the vertical direction, and the vertical reaction force / moment is taken into account, enabling stable simulation and testing.
- the platform is light in weight, rigid and stable with a light base, enabling simulation and testing up to high frequencies with small power and small space.
- a base plate on which a structure to be tested such as a house is placed can move in the XY direction on a sliding floor by an air bearing and can rotate (Yaw motion) around the Z axis. It is arranged so that it can move freely.
- the base plate is provided on the lower surface of the base plate so as to be opposed to the sliding floor, and is equipped with a magnetic adhesion device capable of changing the magnetic adhesion force to the sliding floor. It is comprised so that the magnetic adhesion force with respect to a sliding floor may be in a strong state.
- the magnetic force (magnetization force) by the magnetizing device, the base plate weight, and the weight of the structure under test on the base plate are combined to create a preload state in the up and down direction of the air bearing. A stable test is possible.
- the weight of the base plate is light, the rigidity is high, and stable movement can be realized with a light base, and tests up to a high frequency are possible with a small power and a small space.
- the device is stopped when the air pressure of the air bearing is low, but the base plate moves by a certain distance until it stops due to the influence of inertia.
- the magnetizing force of the magnetizing apparatus on the sliding floor is weak, the magnetic force does not act, the frictional force can be reduced, the wear can be reduced, and the maintenance cycle of the test apparatus can be extended.
- FIG. 1 is a top view of a test apparatus to which the test apparatus of the present invention is applied as a simulation apparatus.
- FIG. 2 is a partially enlarged view of FIG.
- FIG. 3 is a front view seen from the direction A of FIG.
- FIG. 4 is a view obtained by rotating the side view of FIG. 1 viewed from the direction B to the right by 90 degrees.
- FIG. 5 is a top view of the base plate portion of FIG.
- FIG. 6 is a top view in which a part of the motion coupling mechanism of the base plate portion is omitted in FIG.
- FIG. 7 is a view obtained by rotating the rear view of FIG. 6 right by 180 degrees.
- FIG. 8 is a view obtained by rotating the side view in the C direction of FIG. 6 to the right by 90 degrees.
- FIG. 1 is a top view of a test apparatus to which the test apparatus of the present invention is applied as a simulation apparatus.
- FIG. 2 is a partially enlarged view of FIG.
- FIG. 3 is
- FIG. 9 is an enlarged view of an operating state in which the air pressure of the air bearing and the magnetic bonding apparatus in FIG. 7 is high.
- FIG. 10 is an enlarged view of a non-actuated state in which the air pressure of the air bearing and the air bearing unit in FIG. 7 is low.
- FIG. 11 is a top view of a portion of the air bearing and magnetizing apparatus of FIG.
- FIG. 12 is a top view illustrating a state in which the base plate rotates on the sliding floor in the XY direction and around the Z axis.
- FIG. 13 is a top view for explaining a state in which the base plate rotates on the sliding floor around the Z axis in the XY direction.
- FIG. 14 is a top view for explaining a state in which the base plate rotates on the sliding floor around the Z axis in the XY direction.
- FIG. 15 is a top view for explaining a state in which the base plate rotates on the sliding floor in the XY direction and around the Z axis.
- FIG. 16 is a top view for explaining a state in which the base plate rotates on the sliding floor in the XY direction and around the Z axis.
- FIG. 17 is a top view similar to FIG. 1 of a test apparatus according to another embodiment of the present invention.
- FIG. 18 is a top view similar to FIG. 2 of a test apparatus according to still another embodiment of the present invention.
- 19 is a front view similar to FIG. 3 in the direction D of FIG. FIG.
- FIG. 20 is a front view similar to FIG. 19 of a test apparatus according to yet another embodiment of the present invention.
- FIG. 21 is a front view similar to FIG. 19 of a test apparatus according to yet another embodiment of the present invention.
- FIG. 22 is a schematic view taken along line FF in FIG.
- FIG. 23 is a perspective view of a conventional driving simulation test apparatus 100.
- FIG. 24 is a partially enlarged side view of a conventional driving simulator 200.
- FIG. 25 is a perspective view showing an outline of a vibration test apparatus as a conventional test apparatus 300.
- FIG. 1 is a top view of a test apparatus to which the test apparatus of the present invention is applied as a simulation apparatus
- FIG. 2 is a partially enlarged view of FIG. 1
- FIG. 3 is a front view as viewed from the direction A in FIG. 1 is a diagram in which the side view viewed from the direction B in FIG. 1 is rotated 90 degrees to the right
- FIG. 5 is a top view of the base plate portion in FIG. 1
- FIG. 7 is a diagram obtained by rotating the rear view of FIG. 6 to the right by 180 degrees
- FIG. 8 is a diagram in which the side view in the direction C of FIG. 6 is rotated by 90 degrees to the right
- FIG. 10 is an enlarged view of an operating state in which the air pressure of the air bearing and the magnetizing apparatus is high, and FIG. 10 is a non-operating state in which the air pressure of the air bearing and the magnetizing apparatus is low in FIG.
- FIG. 11 is an enlarged view
- FIG. 11 is a top view of the air bearing and magnetizing apparatus portion of FIG. 2 to 16
- the base plate is slid on the floor
- X-Y-direction is a top view illustrating a state of rotational movement about the Z axis.
- reference numeral 10 indicates a test apparatus to which the test apparatus of the present invention is applied as a simulation apparatus as a whole.
- test apparatus 10 of this embodiment as shown in FIG. 1, an embodiment applied to a test apparatus for simulating a driving state according to the driving operation of an operator is shown.
- an automobile is illustrated as an example of a vehicle device.
- a screen or the like is provided around the test apparatus 10 as necessary, and the driving state is visually simulated according to the driving operation of the operator S. It is configured to be able to. Therefore, for example, when only a test such as an acceleration test is performed, such a screen may not be provided.
- the test apparatus 10 of the present invention includes a sliding floor 12, and the upper surface of the sliding floor 12 can move in the XY direction, as will be described later.
- a substantially triangular base plate 14 is disposed in a top view so as to be freely movable so that it can rotate around the Z axis (Yaw motion).
- the base plate 14 is provided with a motion connecting mechanism 16, and the motion connecting mechanism 16 connects a platform 18 constituting a substantially triangular movable part in a top view. Yes.
- the platform 18 is constituted by a so-called truss-structured pipe for weight reduction.
- the motion connecting mechanism 16 employs a 6-degree-of-freedom parallel mechanism called “Stewart platform (also called a hexapod)”, and is connected in parallel.
- Step platform also called a hexapod
- the six links 16a to 16f that expand and contract are formed.
- the platform 18 can move in the X, Y, and Z directions, and around the X axis (Roll) and Y It is configured to be freely movable so that it can rotate around the axis (Pitch) and around the Z axis (Yaw motion).
- each of the links 16a to 16f has a structure in which the piston / cylinder mechanism is operated to expand and contract by operating electric or hydraulic (the figure shows an example of electricity) driving devices 20a to 20f. Further, as shown in FIG. 7, the lower ends of these links 16a to 16f are respectively connected to brackets 24a to 24f formed at three corners of the base plate 14 via pivot shafts 22a to 22f. It is linked movably.
- a driven part that constitutes a transportation device such as a cockpit, a half car model, etc., in this embodiment, a vehicle of an automobile 30 is provided. Except for FIGS. 3 to 4, the driven part (vehicle) 30 is omitted for convenience of explanation.
- a plurality of air bearing units 32 are provided on the lower surface of the base plate 14 so as to face the upper surface of the sliding floor 12, that is, in this embodiment. Then, as shown in FIGS. 5 to 6, the base plate 14 is formed at three corners.
- the air bearing unit 32 is arranged on the lower surface of the base plate 14 so as to be opposed to the upper surface of the sliding floor 12 and spaced apart by a predetermined distance.
- a single air bearing 34 is provided.
- Each of these air bearings 34 is mounted on a spherical seat 36 fixed to the lower surface of the base plate 14 so as to be freely rotatable by a mounting portion 38. Absorbs errors in the surface accuracy of the sliding floor 12 and the parallelism of the mounting portion.
- a magnetizing device 40 capable of changing the magnetizing force on the sliding floor is provided on the lower surface of the base plate 14 and on the upper surface of the sliding floor 12. It arrange
- the magnetic adhesion apparatus 40 includes a piston cylinder mechanism 42, and a base plate 46 is fixed to the lower end of the piston 44 of the piston cylinder mechanism 42.
- a magnet member 48 made of, for example, a permanent magnet is disposed on the lower surface of the base plate 46.
- the magnet member 48 is comprised from a permanent magnet in this way, an inexpensive permanent magnet can be used as the magnet member 48 of the magnetizing apparatus 40, cost can be reduced, and power can be reduced. It is not necessary and energy saving effect can be expected.
- spring members 45 are interposed between the base plate 46 and the flanges 41a at the base end portions of the four guide members 41 provided around the piston 44, respectively.
- the air bearing unit 32 configured in this manner is not shown in an operation state in which the air pressure of the air bearing 34 is high, the base plate 14 is floated by the air pressure of the air bearing 34, and the air between the upper surface of the sliding floor 12 Layers can be made.
- the platform 18 connected to the base plate 14 by the motion connecting mechanism 16 can move on the upper surface of the sliding floor 12 with a minimum frictional force.
- the preload state becomes uniform over the entire base plate 14 and takes up reaction forces and moments in the vertical direction, enabling more stable simulation and testing.
- the air bearing unit 32 is configured so that the magnetizing force of the magnetizing device 40 on the sliding floor 12 is strong when the air pressure of the air bearing 34 is high.
- the base plate 46 fixed to the lower end of the piston 44 moves downward toward the upper surface of the sliding floor 12.
- the distance between the magnet member 48 disposed on the lower surface of the base plate 46 and the upper surface of the sliding floor 12 becomes closer, and the magnetic adhesion force of the magnetic deposition apparatus 40 to the sliding floor 12 becomes strong.
- the load capacity in the vertical direction of the platform 18 can be increased by preloading with the air bearing 34 and the magnetizing device 40.
- the magnetic force (magnetization force) by the magnetizing device 40 and the weight of the platform 18 are combined, and the air bearing 34 is preloaded in the vertical direction, and is responsible for the vertical reaction force / moment, enabling stable simulation and testing. It becomes.
- the weight of the platform 18 is light, the rigidity is high, and a stable motion can be realized with a light base, and simulation up to a high frequency is possible with a small power and a small space.
- the number of air bearings 34, the number of magnetizing devices 40, the arrangement position on the base plate 14 and the like are not particularly limited and can be changed as appropriate.
- the air bearing unit 32 is configured such that when the air pressure of the air bearing 34 is low and in an inoperative state, the magnetizing force of the magnetizing apparatus 40 on the sliding floor 12 is weak.
- the base plate 46 fixed to the lower end of the piston 44 moves upward in a direction away from the upper surface of the sliding floor 12.
- the distance between the magnet member 48 arranged on the lower surface of the base plate 46 and the upper surface of the sliding floor 12 is increased, and the magnetic adhesion force of the magnetic deposition apparatus 40 to the sliding floor 12 is weakened.
- the pressure sensor detects the state and the test apparatus 10 is stopped. However, due to inertia, the base plate 14 moves a certain distance until the stop. Become.
- the magnetizing force of the magnetizing apparatus 40 on the sliding floor 12 is weak, that is, in this embodiment, the distance between the magnet member 48 arranged on the lower surface of the base plate 46 and the upper surface of the sliding floor 12 is as follows.
- the magnetic force does not act, the friction force between the magnet member 48 and the upper surface of the sliding floor 12 can be reduced, the wear can be reduced, and the maintenance cycle of the test apparatus 10 can be lengthened.
- the friction reduction process may be performed on at least one surface of the surface facing the sliding floor 12 of the air bearing 34 or the upper surface of the sliding floor 12.
- FIG. 7 shows a state where the friction reduction process 11 is performed on the upper surface of the sliding floor 12.
- polytetrafluoroethylene resin PTFE
- tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin PFA
- tetrafluoroethylene-hexafluoropropylene copolymer resin FEP
- polychlorotriethylene Fluoroethylene copolymer resin tetrafluoroethylene-ethylene copolymer resin, chlorotrifluoroethylene-ethylene copolymer resin
- polyvinylidene fluoride resin polyvinyl fluoride resin
- tetrafluoroethylene-hexafluoropropylene-perfluoroalkyl Paste a sheet made of fluorine resin such as “vinyl ether copolymer resin”, polyimide resin (PI), polyamide 6 resin (PA6), polyamideimide resin (PAI), peak resin (PEEK), etc.
- PI polyimide resin
- PA6 polyamide 6 resin
- PAI polyamideimide resin
- PEEK peak resin
- the air bearing 34 can be prevented from being damaged even if the air bearing 34 and the upper surface of the sliding floor 12 are slightly in contact with each other. Since the accuracy of the surface of the upper surface of the floor 12 can be somewhat lowered, the cost can be reduced.
- the magnet member 48 arranged on the lower surface of the base plate 46 of the magnetizing apparatus 40 includes a plurality of magnet members 48, and these magnet members 48 are You may arrange
- the magnet members 48 are arranged so that the directions of the poles are perpendicular to each other, the resistance due to the eddy current in each motion direction (XY direction, Yaw rotation) can be made the same. And perform accurate simulations and tests.
- the base plate 14 can be freely moved so that the upper surface of the sliding floor 12 can be moved in the XY direction and can be rotated around the Z axis (Yaw motion).
- An enabling moving mechanism 50 is connected.
- the moving mechanism 50 includes moving drive devices 52a, 52b composed of three piston cylinder mechanisms arranged so that the center angle ⁇ is separated from each other by an angle of 120 °. 52c.
- Each of these movement drive devices 52a, 52b, 52c has three fixed brackets 54a, the base ends of which are fixed to the upper surface of the sliding floor 12 so that the center angle ⁇ is separated from each other by an angle of 120 °.
- 54b and 54c are pivotally connected by pivots 56a, 56b and 56c.
- the movement driving devices 52a, 52b, and 52c have the tips of the pistons 58a, 58b, and 58c in the state shown in FIG. 1, that is, in a top view, as shown by the dotted lines in FIG. Are provided on the base plate 14 so that the center angles ⁇ form 120 ° to each other along the circular circle C when they are substantially at the center position on the upper surface of the sliding floor 12 (in the initial position state).
- the three fixed brackets 60a, 60b, and 60c are rotatably connected by pivots 62a, 62b, and 62c.
- extension lines at the ends of the pistons 58a, 58b, and 58c are substantially the same as the upper surface of the sliding floor 12 in the state of FIG.
- the pistons 58a, 58b, 58c are provided so as to be in contact with the circular circle C or at an angle close to that in contact with the circular circle C when in the center position (when in the initial position state).
- movement drive devices 52a, 52b, and 52c are respectively provided with electric or hydraulic (the figure shows an example of electricity) drive devices 64a, 64b, and 64c for operating the piston / cylinder mechanism at their base end portions. ing.
- the moving mechanism 50 configured as described above is controlled by a control device (not shown) according to the driving operation of the operator S, and the base plate 14 is operated by the air pressure of the air bearing 34 in an operating state where the air pressure of the air bearing 34 is high. Floats and an air layer is formed between the upper surface of the sliding floor 12 and the magnetic adhesion force of the magnetic deposition apparatus 40 to the sliding floor 12 becomes strong, resulting in a preload state.
- the base plate 14 can move in the XY direction from the state where the base plate 14 shown in FIG. It is configured to be freely movable so that it can rotate around the axis (Yaw motion).
- the pistons 58a, 58b, and 58c are in contact with the circular circle C in the state shown in FIG. 1, that is, when the base plate 14 is substantially at the center position on the upper surface of the sliding floor 12 in the top view. Or, it is provided so as to have an angle close to the state in contact with the circular circle C, so that the necessary speed and acceleration of the vibrator are reduced when rotating around the Z axis (Yaw motion). Can do.
- the extension lines at the tips of the pistons 58a, 58b, and 58c are in the state shown in FIG.
- the pistons 58a, 58b, 58c are provided so as to be in contact with the circular circle C or at an angle close to the state of contact with the circular circle C when the pistons 58a, 58b, 58c are in the initial position state.
- the extension line of the tip of the base plate 14 is shifted from the center O of the base plate 14.
- the base plate 14 when the base plate 14 is moved from the state shown in FIG. 1, that is, from the state where the base plate 14 is substantially at the center position on the upper surface of the sliding floor 12 (the state where the base plate 14 is in the initial position state), the base plate 14 is moved with necessary torque. Can do.
- the distance between the axis of the piston cylinder mechanism of the movement drive devices 52a, 52b, and 52c, which are actuators, and the rotation center can be increased, and the operation range of the movement drive devices 52a, 52b, and 52c is maximized.
- the movement drive devices 52a, 52b and 52c which are actuators are arranged.
- the space required for mounting the moving drive devices 52a, 52b, and 52c, which are actuators, is reduced, and the test apparatus 10 can be downsized.
- the piston cylinder mechanism of the movement drive devices 52a, 52b, 52c which are actuators, is installed on the base plate 14 to prevent interference generated in the movement drive devices 52a, 52b, 52c with a limit switch. You can also
- FIG. 17 is a top view similar to FIG. 1 of a test apparatus according to another embodiment of the present invention.
- the test apparatus 10 of this embodiment has basically the same configuration as that of the test apparatus 10 shown in the first embodiment, and the same reference numerals are given to the same components, and a detailed description thereof will be given. Omitted.
- the base plate 14 is substantially at the center of the upper surface of the sliding floor 12 in the state of FIG.
- the movement drive devices 52a, 52b, 52c have their base ends spaced apart from each other at an angle of 120 ° with respect to the upper surface of the sliding floor 12 along the large circular circle D.
- the three fixed brackets 54a, 54b, and 54c fixed in this manner are rotatably connected by pivots 56a, 56b, and 56c.
- the extension lines of the tips of the pistons 58a, 58b, 58c are in the state of FIG. 17, as shown by the one-dot chain line D of FIG.
- the extension lines at the tips of the pistons 58 a, 58 b, 58 c are arranged at positions toward the center O of the base plate 14 when they are substantially at the center position on the upper surface of the sliding floor 12 (when in the initial position state).
- the tips of the pistons 58a, 58b, and 58c are arranged at the three corners of the base plate 14, respectively.
- the angle and speed range in the Yaw direction are small, the torque in the Yaw direction is small, the acceleration range is small, and particularly in the initial position, Since no torque is generated, movement in the Yaw direction is not possible.
- the required space is large, there is no interference between the movement drive devices 52a, 52b, 52c, which are actuators, and the base plate 14, and it can be used for movement in two directions of X and Y.
- the base plate 14 is moved in the Yaw direction from the state shown in FIG. When doing this, torque is required.
- the movement in the XY direction can be performed as compared with the test apparatus 10 of Example 1, but the movement in the Yaw direction is limited. In particular, in the initial position, no torque in the Yaw direction is generated. The movement is only in the direction.
- FIG. 18 is a top view similar to FIG. 2 of a test apparatus of still another embodiment of the present invention
- FIG. 19 is a front view similar to FIG. 3 in the direction D of FIG.
- the test apparatus 10 of this embodiment has basically the same configuration as that of the test apparatus 10 shown in the first embodiment, and the same reference numerals are given to the same components, and a detailed description thereof will be given. Omitted.
- the test apparatus 10 of the first embodiment includes the motion connecting mechanism 16 on the base plate 14 as shown in FIGS.
- the mechanism 16 connects a platform 18 that forms a substantially triangular movable part in a top view.
- a structure to be tested E such as a house is placed on the base plate 14 that functions as a vibration table.
- the base plate 14 that functions as a vibration table.
- it is provided to be fixed by a conventionally known appropriate fixing means, and the motion connecting mechanism 16 is not provided.
- the base plate 14 is a substantially triangular base plate 14 in a top view.
- the base plate 14 is a substantially rectangular base plate 14 as shown in FIG.
- the moving mechanism 50 includes three moving mechanisms arranged so that the center angle ⁇ is separated from each other by an angle of 120 °. It is comprised from the movement drive apparatus 52a, 52b, 52c comprised from a piston cylinder mechanism.
- the movement drive devices 52a and 52b are arranged so that the piston cylinder mechanism expands and contracts in the X-axis direction. .
- the movement drive devices 52a and 52b are connected to one end face 14a in the X-axis direction so as to be separated from each other in the Y-axis direction. Further, the movement drive device 52c is connected to one end face 14b in the Y-axis direction.
- the lower surface of the base plate 14 is in relation to the upper surface of the sliding floor 12 as shown in FIGS.
- a plurality of air bearing units 32 are provided so as to face each other, and are formed at three corners of the base plate 14.
- a plurality of air bearing units 32 are provided on the lower surface of the base plate 14 so as to face the upper surface of the sliding floor 12. And formed at four corners of the base plate 14.
- the air bearing units 32 may be provided at three or more locations, and the number is not limited at all.
- the moving mechanism 50 is applied as a test apparatus capable of performing a vibration test in the X-axis, Y-axis, and Z-axis rotation directions on the horizontal plane.
- a test apparatus capable of performing a vibration test in the X-axis, Y-axis, and Z-axis rotation directions on the horizontal plane.
- it can be used for an on-ground vibration test of an earthquake, an earthquake resistance test of a structure under test E, and a life performance test.
- the conventional horizontal biaxial vibration test apparatus requires two layers of linear guides, requires a large actuator, and at the same time, is not applicable to high frequency and small amplitude due to fretting wear of the linear guides. There is.
- the combined use of the magnetic force (magnetizing force) by the air bearing 34 and the magnetizing device 40 reduces the frictional force and makes the base plate 14 that is a vibration table light. For this reason, the capacity
- FIG. 20 is a front view similar to FIG. 19 of a test apparatus of still another embodiment of the present invention.
- the test apparatus 10 of this embodiment has basically the same configuration as that of the test apparatus 10 shown in the third embodiment, and the same reference numerals are given to the same components, and the detailed description thereof will be given. Omitted.
- test apparatus 10 of the above-described third embodiment a structure to be tested E such as a house is placed on the base plate 14.
- a cockpit 70 of a vehicle such as an automobile is placed as the structure E to be tested.
- the test apparatus 10 of this embodiment is applied as a three-degree-of-freedom vehicle simulation apparatus that can move in the X-axis direction and the Y-axis direction and rotate (Yaw motion) around the Z-axis (vertical axis). be able to.
- FIG. 21 is a front view similar to FIG. 19 of a test apparatus of still another embodiment of the present invention
- FIG. 22 is a schematic view taken along line FF of FIG.
- the test apparatus 10 of this embodiment has basically the same configuration as that of the test apparatus 10 shown in the third embodiment, and the same reference numerals are given to the same components, and the detailed description thereof will be given. Omitted.
- a plurality of air bearing units 32 are provided on the lower surface of the base plate 14 so as to face the upper surface of the sliding floor 12.
- the base plate 14 is formed at four corners.
- the magnetizing apparatus 40 is disposed between the two air bearings 34 in the air bearing unit 32 on the lower surface of the base plate 14. Are arranged on the lower surface of the base plate 14 so as to face the upper surface of the sliding floor 12.
- two magnetizing apparatuses 40 are arranged on the lower surface of the base plate 14 so as to be separated from each other on the central axis G.
- the sliding floor 12 is disposed so as to face the upper surface.
- three air bearings 34 are separated from each other at a central angle 120 in the lower right corner, as shown in FIG. Arranged in an arc.
- the number, arrangement position, and shape of the air bearing 34 and the arrangement position of the magnetizing apparatus 40 are appropriately combined depending on the shape of the base plate 14 and the structure E to be tested.
- the selection is not particularly limited.
- the present invention is not limited to this, and in the above-described embodiment, as the motion coupling mechanism 16, a so-called “Stewart platform (also referred to as a hexapod)” is used. Although a 6-degree-of-freedom parallel mechanism called “is employed, other motion coupling mechanisms 16 may be employed.
- Step platform also referred to as a hexapod
- 6-degree-of-freedom parallel mechanism is employed, other motion coupling mechanisms 16 may be employed.
- the magnetic attachment apparatus 40 is provided with the magnet member 48 comprised from an electromagnet. May be.
- the magnetizing apparatus 40 is composed of an electromagnet
- the magnitude of the magnetic force can be changed by changing the magnitude of the current to the electromagnet, and control is easy. Become.
- the piston / cylinder mechanism is used as the movement drive devices 52a, 52b, and 52c, which are actuators, but other actuators may be used.
- test apparatus 10 of the present invention is a test apparatus, for example, for machine parts such as automobile parts (such as drive parts, undercarriage metal parts, rubber parts, shock absorbers, etc.), and finished products such as finished automobiles.
- machine parts such as automobile parts (such as drive parts, undercarriage metal parts, rubber parts, shock absorbers, etc.)
- finished products such as finished automobiles.
- civil engineering-related structures such as bridge girders, bridges and seismic isolation rubber for buildings
- material testing equipment, vibration testing equipment, etc. for conducting material tests, vibration tests, fatigue tests, property tests, etc.
- the present invention can be applied to various test apparatuses such as a fatigue test apparatus and an operation simulation apparatus.
- the test apparatus 10 of the present invention is configured by a combination of one base plate 14 and the moving mechanism 50.
- a combination of a plurality of combinations of the one base plate 14 and the moving mechanism 50 is 1
- two test devices 10 In this case, different types of structures to be tested or the same type of structures to be tested are provided on the plurality of base plates 14, or one structure to be tested is provided on the plurality of base plates 14.
- Various modifications can be made without departing from the object of the present invention.
- the present invention applies external force to, for example, transportation equipment such as automobiles, motorcycles, trains, airplanes, ships, structures such as bridges, buildings, houses, buildings, and structures under test such as these parts. It can be applied to test equipment for performing various tests such as loading tests performed in addition, vibration tests performed by applying vibration, and simulation tests such as driving conditions according to the driving operation of the operator. .
- Test apparatus 12 Sliding floor 14 Base plate 14a, 14b End surface 16 Motion coupling mechanism 16a-16f Link 18 Platform 20a-20f Drive apparatus 22a-22f Pivot shaft 24a-24f Bracket 26a-26f Pivot shaft 28a-28f Support part 30 Vehicle (covered) Driving department) 32 Air bearing unit 34 Air bearing 36 Spherical seat 38 Mounting portion 40 Magnetic attachment device 41 Guide member 41a Flange 42 Piston cylinder mechanism 44 Piston 45 Spring member 46 Base plate 48 Magnet member 50 Moving mechanisms 52a to 52c Moving drive devices 54a to 54c Fixed Brackets 56a to 56c Pivots 58a to 58c Pistons 60a to 60c Fixed brackets 62a to 62c Pivots 64a to 64c Drive device 70 Cockpit 100 Operation simulation test device 102 Motion coupling mechanism 104 Base 106 Platform 108 Dome 110 X axis direction rail 112 Y axis direction rail 200 Driving simulator 202 Motion coupling mechanism 204 Base 206 Platform 206 Platform
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Abstract
Description
また、このようなパラレル6自由度プラットフォームは、運動可能範囲が限られるため、運輸機器の前進方向・横方向・旋回において比較的低い周波数で大振幅の動作を再現するため、平面上(X,Y,Yaw方向)に移動できる機構の上に設置されるケースがある。
比較的高い周波数で小振幅の動作は、スチュワート・プラットフォームにより再現され、比較的低い周波数で大振幅の動作は、平面移動機構により再現される。
このため、運輸機器が旋回時必要な動作は、すべて可動部の6自由度プラットフォームで再現させる必要性があるため、プラットフォームがさらに大型化する。
操作者の運転操作に応じて運転状態をシミュレーションするための試験装置であって、
すべり床上をエアベアリングによって、X-Y方向に移動できるとともに、Z軸の周りに回転できるように自由に移動可能に配置されたベースプレートと、
前記ベースプレート上に、運動連結機構によって連結され、被運転部が設けられたプラットフォームと、
前記ベースプレートの下面にすべり床に対して対峙するように配置され、前記すべり床に対する磁着力を変更可能な磁着装置とを備え、
前記エアベアリングのエア圧力が高い作動状態では、前記磁着装置のすべり床に対する磁着力が強い状態となり、
前記エアベアリングのエア圧力が低い非作動状態では、前記磁着装置のすべり床に対する磁着力が弱い状態となるように構成されていることを特徴とする。
被試験構造物に対して外力を負荷して各種の試験を行うための試験装置であって、
すべり床上をエアベアリングによって、X-Y方向に移動できるとともに、Z軸の周りに回転できるように自由に移動可能に配置され、被試験構造物が設けられたベースプレートと、
前記ベースプレートの下面にすべり床に対して対峙するように配置され、前記すべり床に対する磁着力を変更可能な磁着装置とを備え、
前記エアベアリングのエア圧力が高い作動状態では、前記磁着装置のすべり床に対する磁着力が強い状態となり、
前記エアベアリングのエア圧力が低い非作動状態では、前記磁着装置のすべり床に対する磁着力が弱い状態となるように構成されていることを特徴とする。
前記複数のエアベアリングに対応して、複数の磁着装置が設けられていることを特徴とする。
ルオロエチレン-ヘキサフルオロプロピレン共重合体樹脂(FEP)、ポリクロロトリフルオロエチレン共重合体樹脂、テトラフルオロエチレン-エチレン共重合体樹脂、クロロトリフルオロエチレン-エチレン共重合体樹脂、ポリビニリデンフルオライド樹脂、ポリビニルフルオライド樹脂、テトラフルオロエチレン-ヘキサフルオロプロピレン-パーフルオロアルキルビニルエーテル共重合体樹脂」などのフッ素系樹脂や、ポリイミド樹脂(PI)、ポリアミド6樹脂(PA6)、ポリアミドイミド樹脂(PAI)、ピーク樹脂(PEEK)などからなるシートを貼着したり、これらの樹脂単体および混合体を焼付コーティングしたりすることによって、エアベアリングのすべり床に対峙する面、または、すべり床の上面のうち少なくとも一方の表面に摩擦低減処理を施している。
ルオロエチレン-ヘキサフルオロプロピレン共重合体樹脂(FEP)、ポリクロロトリフルオロエチレン共重合体樹脂、テトラフルオロエチレン-エチレン共重合体樹脂、クロロトリフルオロエチレン-エチレン共重合体樹脂、ポリビニリデンフルオライド樹脂、ポリビニルフルオライド樹脂、テトラフルオロエチレン-ヘキサフルオロプロピレン-パーフルオロアルキルビニルエーテル共重合体樹脂」などのフッ素系樹脂や、ポリイミド樹脂(PI)、ポリアミド6樹脂(PA6)、ポリアミドイミド樹脂(PAI)、ピーク樹脂(PEEK)などからなるシートを貼着したり、これらの樹脂単体および混合体を焼付コーティングしたりすることによって、エアベアリング34のすべり床12に対峙する面、または、すべり床12の上面のうち少なくとも一方の表面に摩擦低減処理を施しても良い。
なお、このエアベアリングユニット32は、3か所以上設ければよく、その数は、何ら限定されるものではない。
例えば、地震の台上振動試験や、被試験構造物Eの耐震性試験、寿命性能試験に用いることが可能である。
このため、アクチュエータである移動駆動装置52a、52b、52cの容量が小さくなり、高い周波数における高性能の振動試験が可能となる。
これに対して、この実施例の試験装置10では、被試験構造物Eとして、自動車などの車輛のコクピット70が載置されている。
これにより、この実施例の試験装置10は、X軸方向、Y軸方向の移動、および、Z軸(上下軸)の周りに回転(Yaw運動)できる3自由度の車輛のシミュレーション装置として適用することができる。
12 すべり床
14 ベースプレート
14a、14b 端面
16 運動連結機構
16a~16f リンク
18 プラットフォーム
20a~20f 駆動装置
22a~22f ピボット軸
24a~24f ブラケット
26a~26f ピボット軸
28a~28f 支持部
30 車両(被運転部)
32 エアベアリングユニット
34 エアベアリング
36 球面座
38 装着部
40 磁着装置
41 ガイド部材
41a フランジ
42 ピストンシリンダー機構
44 ピストン
45 バネ部材
46 ベース板
48 磁石部材
50 移動機構
52a~52c 移動駆動装置
54a~54c 固定ブラケット
56a~56c ピボット
58a~58c ピストン
60a~60c 固定ブラケット
62a~62c ピボット
64a~64c 駆動装置
70 コックピット
100 運転模擬試験装置
102 運動連結機構
104 ベース
106 プラットフォーム
108 ドーム
110 X軸方向レール
112 Y軸方向レール
200 運転シミュレータ
202 運動連結機構
204 ベース
206 プラットフォーム
208 ドーム
210 すべり面
212 エアベアリング
300 試験装置
302 架台
304 X軸方向レール
306 Y軸方向アクチュエータ
308 X軸方向ベース
310 Y軸方向レール
312 X軸方向アクチュエータ
314 X,Y軸両方向ベース
C 円形サークル
D 円形サークル
E 被試験構造物
G 中心軸
O 中心
S 操作者
α 中心角度
β 中心角度
Claims (9)
- 操作者の運転操作に応じて運転状態をシミュレーションするための試験装置であって、
すべり床上をエアベアリングによって、X-Y方向に移動できるとともに、Z軸の周りに回転できるように自由に移動可能に配置されたベースプレートと、
前記ベースプレート上に、運動連結機構によって連結され、被運転部が設けられたプラットフォームと、
前記ベースプレートの下面にすべり床に対して対峙するように配置され、前記すべり床に対する磁着力を変更可能な磁着装置とを備え、
前記エアベアリングのエア圧力が高い作動状態では、前記磁着装置のすべり床に対する磁着力が強い状態となり、
前記エアベアリングのエア圧力が低い非作動状態では、前記磁着装置のすべり床に対する磁着力が弱い状態となるように構成されていることを特徴とする試験装置。 - 被試験構造物に対して外力を負荷して各種の試験を行うための試験装置であって、
すべり床上をエアベアリングによって、X-Y方向に移動できるとともに、Z軸の周りに回転できるように自由に移動可能に配置され、被試験構造物が設けられたベースプレートと、
前記ベースプレートの下面にすべり床に対して対峙するように配置され、前記すべり床に対する磁着力を変更可能な磁着装置とを備え、
前記エアベアリングのエア圧力が高い作動状態では、前記磁着装置のすべり床に対する磁着力が強い状態となり、
前記エアベアリングのエア圧力が低い非作動状態では、前記磁着装置のすべり床に対する磁着力が弱い状態となるように構成されていることを特徴とする試験装置。 - 前記磁着装置が、すべり床に対して離接可能に構成され、前記すべり床に対する磁着力の強弱が切替え可能に構成されていることを特徴とする請求項1または2のいずれかに記載の試験装置。
- 前記磁着装置が、すべり床に対して離接可能に構成された磁石部材を備えることを特徴とする請求項3に記載の試験装置。
- 前記磁石部材が、永久磁石から構成されていることを特徴とする請求項4に記載の試験装置。
- 前記磁着装置が、電磁石から構成される磁石部材を備えていることを特徴とする請求項1から4のいずれかに記載の試験装置。
- 前記磁石部材が、複数の磁石部材から構成され、これらの磁石部材が、相互に極の向きが直角の位置となるように配置されていることを特徴とする請求項4から6のいずれかに記載の試験装置。
- 前記ベースプレートの下面に球面座を介して複数のエアベアリングが設けられ、
前記複数のエアベアリングに対応して、複数の磁着装置が設けられていることを特徴とする請求項1から7のいずれかに記載の試験装置。 - 前記エアベアリングのベースプレートに対峙する面、または、前記すべり床の上面のうち少なくとも一方の表面に、摩擦低減処理が施されていることを特徴とする請求項1から8のいずれかに記載の試験装置。
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