CN209689860U - A kind of half-sine wave horizontal impact testing stand - Google Patents
A kind of half-sine wave horizontal impact testing stand Download PDFInfo
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- CN209689860U CN209689860U CN201821741333.XU CN201821741333U CN209689860U CN 209689860 U CN209689860 U CN 209689860U CN 201821741333 U CN201821741333 U CN 201821741333U CN 209689860 U CN209689860 U CN 209689860U
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- oil
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- vibration table
- testing stand
- baffle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of half-sine wave horizontal impact testing stands, comprising: actuator, vibration table, baffle, oil circuit control module, accumulator and control system；Wherein, the vibration table is connected with the actuator, the baffle is connected with the vibration table, the oil circuit control module is connected with the actuator, the accumulator is connected with the oil circuit control module, the control system, it is connected with the actuator and the vibration table, tested equipment is placed on the vibration table and is resisted against on the baffle, when the actuator receives control system control instruction, the oil circuit control module is that each actuator conveys hydraulic oil, when pressure fluctuation, the accumulator is stablized for controlling oil pressure, the vibration table is enabled to carry out semisinusoidal horizontal impact according to the control instruction according to oil pressure cntrol actuator.The test of semisinusoidal horizontal impact may be implemented based on above-mentioned testing stand.
Description
Technical field
The utility model relates to vibration test technology field more particularly to a kind of half-sine wave horizontal impact testing stands.
Background technique
1g 350ms semisinusoidal horizontal impact test in IEC 62759-1 standard testing is key sub-tests, the examination
Test mainly simulation photovoltaic module slow down suddenly during truck transport and turn in accelerator four vertical planes by
Horizontal impact.IEC 62759-1 standard is international standard, and the test method and appraisement system to photovoltaic module are that the world is each
State receives and approves, can carry out simulation transport test to whole packaging photovoltaic apparatus according to IEC 62759-1 standard is to obtain
The pre-requisite abilities in photovoltaic apparatus simulation transport detection market.
This test is carried out in IEC 62759-1 to need to complete using large-scale controllable levels impact test platform.Energy
The controllable levels impact test Platform Price for carrying out 1g 350ms semisinusoidal horizontal impact is expensive, and occupied space is big, and at present
The domestic manufacturer for meeting the project testing requirement equipment without producing.
Utility model content
In view of this, the present invention provides a kind of half-sine wave horizontal impact testing stands, to solve the prior art
In carry out horizontal impact test according to IEC 62759-1 standard and need to complete using large-scale controllable levels impact test platform
Test equipment restricted problem.The controllable levels impact test Platform Price that can be carried out 1g 350ms semisinusoidal horizontal impact is expensive,
Occupied space is big, at present the domestic equipment manufacturer for meeting the project testing requirement without producing.Concrete scheme is as follows:
A kind of half-sine wave horizontal impact testing stand characterized by comprising actuator, vibration table, baffle, oil circuit
Control module, accumulator and control system,
Wherein:
The actuator for receiving the control instruction of control system, and controls the vibration table according to the control
Instruction carries out semisinusoidal horizontal impact；
The vibration table is connected, for placing equipment under test with the actuator；
The baffle is connected with the vibration table, for control the equipment under test during the experiment with it is described
Relative motion is not present in shake table, and by control undulation；
The oil circuit control module, is connected with the actuator, for passing through actuator described in oil pressure cntrol；
The accumulator is connected with the oil circuit control module, for buffering the pressure oscillation of oil pressure, enables oil pressure steady
It is fixed；
The control system is connected with the actuator and the vibration table, and user receives the vibration table
Test data and transmission control instruction.
Above-mentioned testing stand, optionally, the oil circuit control module includes: oil sources, oil circuit separator, high-pressure oil feed pipe and
Oil return pipe,
Wherein:
The oil sources, for exporting and receiving hydraulic oil；
The oil circuit separator, is connected with the oil sources, and the hydraulic oil that the oil sources exports is distributed to each actuation
Device；
The high-pressure oil feed pipe is connected with the oil circuit separator, the oil sources and the accumulator, is used for transport point
State the hydraulic oil of oil circuit separator separation；
The oil return pipe is connected with the oil sources, for hydraulic oil to be transmitted back to the oil sources.
Above-mentioned testing stand, optionally, the control system are used to acquire the speed of the vibration table, acceleration and position
Move data.
Above-mentioned testing stand optionally further includes velocity variations tester,
Wherein:
The velocity variations tester, the impact velocity for testing the vibration table change.
Above-mentioned testing stand, optionally, the material of the baffle are 10# channel steel.
Above-mentioned testing stand, optionally, the semisinusoidal shock wave that it is 1g350ms that the vibration table, which generates,.
Above-mentioned testing stand, optionally, tested equipment are controlled by the semisinusoidal shock wave ± 20%.
Above-mentioned testing stand, optionally, tested equipment are controlled by velocity variable ± 15%.
Above-mentioned testing stand, optionally, further includes: non-return load device, wherein the non-return load device be with it is described
The same or similar simulator of tested equipment, for when pallet is not present in tested device bottom, simulation be detected equipment it
Between interaction.
Above-mentioned testing stand, optionally, the baffle are bolted on the vibration table.
Compared with prior art, the utility model includes following advantages:
The utility model discloses a kind of half-sine wave horizontal impact testing stands, comprising: actuator, vibration table, and baffle,
Oil circuit control module, accumulator and control system；Wherein, the vibration table is connected with the actuator, the baffle with
The vibration table is connected, and the oil circuit control module is connected with the actuator, the accumulator and the oil circuit control
Molding block is connected, and the control system is connected with the actuator and the vibration table, and tested equipment is placed on institute
It states on vibration table and is resisted against on the baffle, when the actuator receives control system control instruction, the oil circuit
Control module is that each actuator conveys hydraulic oil, and when pressure fluctuation, the accumulator is stablized for controlling oil pressure, according to
The vibration table is enabled to carry out semisinusoidal horizontal impact according to the control instruction according to oil pressure cntrol actuator.Based on above-mentioned examination
Testing platform may be implemented the test of semisinusoidal horizontal impact.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of half-sine wave horizontal impact test platform structure block diagram disclosed in the utility model embodiment；
Fig. 2 is a kind of half-sine wave horizontal impact test bed testing data graphs disclosed in the utility model embodiment；
Fig. 3 is a kind of half-sine wave horizontal impact test platform structure schematic diagram disclosed in the utility model embodiment；
Fig. 4 is a kind of baffle arrangement schematic diagram disclosed in the utility model embodiment.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
This practical information discloses a kind of half-sine wave horizontal impact testing stand, and the testing stand is applied in IEC 62759-
1g 350ms semisinusoidal horizontal impact test in 1 standard, the test mainly simulate photovoltaic module during truck transport
The horizontal impact that four vertical planes are subject in deceleration suddenly and turning accelerator.IEC 62759-1 standard is international standard,
It is received and is approved by countries in the world to the test method and appraisement system of photovoltaic module, can be marked according to IEC 62759-1
It is the pre-requisite abilities for obtaining photovoltaic apparatus simulation transport detection market that standard, which carries out simulation transport test to whole packaging photovoltaic apparatus,.This
Utility model discloses a kind of half-sine wave horizontal impact testing stand, tests for realizing 1g 350ms semisinusoidal horizontal impact,
The structural schematic diagram of the testing stand is as shown in Figure 1, comprising: actuator, vibration table, baffle, oil circuit control module, accumulator
And control system,
Wherein:
The actuator for receiving the control instruction of control system, and controls the vibration table according to the control
Instruction carries out semisinusoidal horizontal impact；
The vibration table is connected, for placing equipment under test with the actuator；
The baffle is connected with the vibration table, for control the equipment under test during the experiment with it is described
Relative motion is not present in shake table, and by control undulation；
The oil circuit control module, is connected with the actuator, for passing through actuator described in oil pressure cntrol；
The accumulator is connected with the oil circuit control module, for buffering the pressure oscillation of oil pressure, enables oil pressure steady
It is fixed；
The control system is connected with the actuator and the vibration table, and user receives the vibration table
Test data and transmission control instruction.
The utility model discloses a kind of half-sine wave horizontal impact testing stands, comprising: actuator, vibration table, and baffle,
Oil circuit control module, accumulator and control system；Wherein, the vibration table is connected with the actuator, the baffle with
The vibration table is connected, and the oil circuit control module is connected with the actuator, the accumulator and the oil circuit control
Molding block is connected, and the control system is connected with the actuator and the vibration table, and tested equipment is placed on institute
It states on vibration table and is resisted against on the baffle, when the actuator receives control system control instruction, the oil circuit
Control module is that each actuator conveys hydraulic oil, and when pressure fluctuation, the accumulator is stablized for controlling oil pressure, according to
The vibration table is enabled to carry out semisinusoidal horizontal impact according to the control instruction according to oil pressure cntrol actuator.Based on above-mentioned examination
Testing platform may be implemented the test of semisinusoidal horizontal impact.
In the utility model embodiment, the oil circuit control module includes: oil sources, oil circuit separator, high-pressure oil feed pipe and
Oil return pipe,
Wherein:
The oil sources, for exporting and receiving hydraulic oil；
The oil circuit separator, is connected with the oil sources, and the hydraulic oil that the oil sources exports is distributed to each actuation
Device；
The high-pressure oil feed pipe is connected with the oil circuit separator, for transporting the liquid of the oil circuit separator separation
Pressure oil；
The oil return pipe is connected with the oil sources, for hydraulic oil to be transmitted back to the oil sources.
In the utility model embodiment, by calculating speed, the displacement, acceleration of horizontal impact, customized horizontal impact wave
Shape generating program, and the control system is written, wherein the hair when the position of object, speed or acceleration change suddenly
The characteristics of raw mechanical shock, mechanical shock is that acceleration quickly increases, and quickly reduces in a short time.Impact principle are as follows:
Free-electron model packaging impact: package is from height h free-electron model, time are as follows:
Wherein, m- wrap quality, h- package falling height, v- package fall speed.
V=v0+gt (2)
Assuming that v0=0Impact velocity are as follows:
Package can generate rebound, and rebound is determined by the characteristic of package and the characteristic of shock surface.Assuming that recovery coefficient e,
(functional relation of description impact velocity and rebound velocity)
vR=evI (3)
Wherein, vISpeed before colliding, vRSpeed after collision
Velocity variable in collision are as follows: Δ v=| vR|+|vI|, Δ v=(1+e) vI
Coefficient of resilience e value takes between 0/1 (free-electron model generally takes 0.3/0.5), so: vI< Δ v < 2vI
Velocity variable is equal to the area of shock pulse: 1g (350ms) requires velocity variable are as follows: 2.2m/s.
The differential equation of collision movement are as follows:
Ma+Kx=ma1 (5)
Wherein, a1By tested equipment impact acceleration；
A springs back acceleration by tested equipment；
K baffle rigidity；
X baffle deforms after hitting；
According to solution of integral equation:
By primary condition: x |T=0=0, x'|T=0=v, x " |T=0=a1
Obtain the general solution of equation are as follows:
In formula:The quiet deformation of buffer is placed on for shock testing machine.
According to a=ω2A is obtained
In the utility model, the sine surge waveform is realized by the hydraulic actuator of the testing stand, by accurate
Displacement, the speed of the actual motion that shake table realizes that 1g 350ms needs are calculated, control operation acceleration produces vibration table
1g 350ms semisinusoidal shock wave.And enabling tested equipment by semisinusoidal impulsive control within ± 20%, actual speed becomes
Change amount controls in ± 15%.
It goes to hit gear it is recognised that the vibration table is made to reach certain speed by the test principle of the testing stand
Plate, the tested equipment on the vibration table will be servo-actuated.After contact, the vibration table reduces speed now, and generates and move
Contrary acceleration, when speed is kept to zero, baffle compression reaches maximum, and the acceleration of the vibration table reaches at this time
Maximum value, then the baffle pushes the vibration table counter motion, finishes until retaining device compression discharges, described
Vibration table speed reaches reversed maximum.By adjusting stroke speed, the baffle of the vibration table, required by capable of generating
Pulse, and the impact of predetermined pulse waveform is realized to tested equipment.In the period that the vibration table acceleration is not zero, it is detected
Equipment will receive the extruding of non-return load device always.Acceleration, speed, the displacement curve of vibration table described in collision process
It is illustrated in fig. 2 shown below:
Key position amplitude is as shown in table 1:
Table 1
| Initial minimum | Positive maximum value | Terminate minimum value | Remarks | |||
| Acceleration | 0.23g | 0 | 1g | 0 | 0.23g | |
| Speed | 0 | -1.1m/s | 0 | 1.1m/s | ||
| Displacement | -250mm | -134mm | +250mm | +134mm | -250mm |
Testing stand described in the utility model can do 1g 350ms semisinusoidal water by control software to control vibration table
Flat ballistic motion.Preferably, the testing stand hydraulic-driven, movement is that hydraulic pump operating is driven by large-size machine, hydraulic
It pumps and provides high pressure fuel source to the actuator of vibration table to drive table top to move, changed by vibration bench control system and enter actuation
The flow of device hydraulic oil and direction can be such that actuator moves by defined forms of motion, require to realize in vibration table surface
Moving wave shape, realization 1g 350ms half-sine wave horizontal impact is done to the vertical plane of tested equipment.Oil sources passes through oil pump to pipe
Road provides high pressure liquid pressure oil, and high pressure liquid pressure oil is sent to all actuator after reaching oil circuit separator respectively, while by accumulator
Oil pressure is kept to stablize.The manner of execution of the hydraulic efficiency servo-valve inside actuator is controlled by Control System Software to push actuator
The movement of push rod.All actuator cooperate under the control of the computer, thus the wave for driving vibration table to convey by computer
Shape movement, the schematic diagram of above-mentioned testing stand is as shown in figure 3, wherein, it is preferred that the quantity of actuator is 4, and technical parameter is such as
Under:
Vibration table size (m × m): 2.5x2.5
The tested weight of equipment of maximum: 3T
Operating frequency range (Hz): 1-80
Maximum displacement (mm): ± 300 Z ± 200 ± 300 Y of X
Maximum speed (m/s): ± 2.0 Z ± 1.4 ± 2.0 y of X
Full load peak acceleration (g): ± 2.5 Z ± 1.75 ± 2.5 Y of X
Peak acceleration (g) when unloaded: ± 5.0 Z ± 3.5 ± 5.0 Y of X
According to sinusoidal waveform displacement formula: X=Xmsin (ω t)
It can obtain speed formula: V=Xm ω cos (ω t)
It can obtain Acceleration Formula: A=Xm ω 2sin (ω t)
It requires to be 1g350ms because of impact, so frequency f=1/ (0.35*2)=1.42857, the Л of circular frequency ω=2 f=
80.568；
So impact maximum speed Vmax=Xm ω=1.114m/s, maximum displacement Xm=0.122m can be obtained.
Wherein, acceleration, speed, displacement are all within the permitted maximum range of shake table.So setting shake table
Initial state can be achieved with the impact of 1g350ms half-sine wave.
In the utility model, it is desirable that it is required that deformation of baffle when by quality load impacting can be ignored, preferably
, the baffle is manufactured using 10# channel steel, wherein the structure chart of the baffle is as shown in figure 4, be mounted on liquid for baffle
Vibration table surface is pressed, and guarantees that baffle is fixedly secured with bolt in table top.When hydraulic vibration gen table top exports 1g350ms semisinusoidal
When surge waveform, because the rigidity of baffle is sufficiently strong, so baffle will be servo-actuated with identical waveform with vibration table.At this time if vibration
Be placed with the equipment under test that bottom has wood pallets on dynamic platform, and equipment without departing from pallet length in the case where non-return load
It omits.
It should be noted that all the embodiments in this specification are described in a progressive manner, each embodiment weight
Point explanation is the difference from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
For device class embodiment, since it is basically similar to the method embodiment, so being described relatively simple, related place ginseng
See the part explanation of embodiment of the method.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
For convenience of description, it is divided into various units when description apparatus above with function to describe respectively.Certainly, implementing this
The function of each unit can be realized in the same or multiple software and or hardware when utility model.
As seen through the above description of the embodiments, those skilled in the art can be understood that this is practical new
Type can be realized by means of software and necessary general hardware platform.Based on this understanding, the technology of the utility model
Substantially the part that contributes to existing technology can be embodied in the form of software products scheme in other words, the computer
Software product can store in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that one
Computer equipment (can be personal computer, server or the network equipment etc.) execute each embodiment of the utility model or
Method described in certain parts of person's embodiment.
A kind of half-sine wave horizontal impact testing stand provided by the utility model is described in detail above, herein
In apply specific case the principles of the present invention and embodiment be expounded, the explanation of above embodiments is only used
The method and its core concept of the utility model are understood in help；At the same time, for those skilled in the art, according to this reality
With novel thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification is not
It is interpreted as limitations of the present invention.
Claims (10)
1. a kind of half-sine wave horizontal impact testing stand characterized by comprising actuator, vibration table, baffle, oil circuit control
Molding block, accumulator and control system,
Wherein:
The actuator for receiving the control instruction of control system, and controls the vibration table according to the control instruction
Carry out semisinusoidal horizontal impact；
The vibration table is connected, for placing equipment under test with the actuator；
The baffle is connected with the vibration table, for control the equipment under test during the experiment with the vibration
Relative motion is not present in platform, and by control undulation；
The oil circuit control module, is connected with the actuator, for passing through actuator described in oil pressure cntrol；
The accumulator is connected with the oil circuit control module, for buffering the pressure oscillation of oil pressure, oil pressure is enabled to stablize；
The control system is connected with the actuator and the vibration table, for receiving the test of the vibration table
Data and transmission control instruction.
2. testing stand according to claim 1, which is characterized in that the oil circuit control module includes: oil sources, oil circuit separation
Device, high-pressure oil feed pipe and oil return pipe,
Wherein:
The oil sources, for exporting and receiving hydraulic oil；
The oil circuit separator, is connected with the oil sources, and the hydraulic oil that the oil sources exports is distributed to each actuator；
The high-pressure oil feed pipe is connected, for transporting the oil with the oil circuit separator, the oil sources and the accumulator
The hydraulic oil of road separator separation；
The oil return pipe is connected with the oil sources, for hydraulic oil to be transmitted back to the oil sources.
3. testing stand according to claim 1, which is characterized in that the control system is for acquiring the vibration table
Speed, acceleration and displacement data.
4. testing stand according to claim 1, which is characterized in that it further include velocity variations tester,
Wherein:
The velocity variations tester, the impact velocity for testing the vibration table change.
5. testing stand according to claim 1, which is characterized in that the material of the baffle is 10# channel steel.
6. testing stand according to claim 1, which is characterized in that the vibration table generate be 1g350ms partly just
String shock wave.
7. testing stand according to claim 6, which is characterized in that equipment under test is by the semisinusoidal shock wave amplitude control
System is ± 20%.
8. testing stand according to claim 6, which is characterized in that equipment under test by velocity variable controlled ±
15%.
9. testing stand according to claim 1, which is characterized in that further include: non-return load device, wherein the non-return
Load device is the simulator same or similar with the equipment under test, for pallet to be not present in equipment under test bottom
When, simulate the interaction between equipment under test.
10. testing stand according to claim 1, which is characterized in that the baffle is bolted on the shake table
On face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741333.XU CN209689860U (en) | 2018-10-25 | 2018-10-25 | A kind of half-sine wave horizontal impact testing stand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741333.XU CN209689860U (en) | 2018-10-25 | 2018-10-25 | A kind of half-sine wave horizontal impact testing stand |
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| Publication Number | Publication Date |
|---|---|
| CN209689860U true CN209689860U (en) | 2019-11-26 |
Family
ID=68594401
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161769A (en) * | 2020-09-27 | 2021-01-01 | 肇庆学院 | Horizontal two-degree-of-freedom hydraulic pump vibration acceleration life test stand |
-
2018
- 2018-10-25 CN CN201821741333.XU patent/CN209689860U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112161769A (en) * | 2020-09-27 | 2021-01-01 | 肇庆学院 | Horizontal two-degree-of-freedom hydraulic pump vibration acceleration life test stand |
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Address after: 071000 No. 1559 Dongfeng Middle Road, Hebei, Baoding Patentee after: Institute of science and technology innovation, Baoding Address before: No. 299, Tengfei Road, Lianchi District, Baoding City, Hebei Province Patentee before: BAODING TELECOMMUNICATION EQUIPMENT ANTIVIBRATION Research Institute |
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