CN112683502B - Bending stiffness test equipment - Google Patents
Bending stiffness test equipment Download PDFInfo
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- CN112683502B CN112683502B CN202011426626.0A CN202011426626A CN112683502B CN 112683502 B CN112683502 B CN 112683502B CN 202011426626 A CN202011426626 A CN 202011426626A CN 112683502 B CN112683502 B CN 112683502B
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- arresting cable
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- flitch
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Abstract
The application belongs to the field of strength tests, and particularly relates to bending rigidity test equipment. The method comprises the following steps: the device comprises a test bed, a first arresting cable, a second arresting cable and a flitch. The test bed is provided with a baffle plate which divides the test bed into a first area and a second area; one end of the first arresting cable is arranged in the groove of the first area and fixed with the test bed through a hoop, the other end of the first arresting cable is suspended outside the test bed, a first joint is arranged at the end of the first arresting cable, and weights are arranged on the first joint; one end of the second arresting cable is provided with a second joint, the second joint is hinged with a fixed rod in a second area after bypassing the steering wheel, the other end of the second arresting cable is suspended outside the test bed, the end of the second arresting cable is provided with a third joint, and weights are arranged on the third joint; the first flitch is used for calibrating the first arresting cable, and the second flitch is used for calibrating the second arresting cable. The test result is simply and conveniently changed in the extraction operation of this application, realizes the loading of different loads, can test different thickness arresting cable flexural rigidity.
Description
Technical Field
The application belongs to the field of strength tests, and particularly relates to bending stiffness test equipment.
Background
The arresting cable shows highly nonlinear mechanical behavior in the processes of tire rolling and hook cable meshing impact, under the action of high-speed impact, not only tensile waves are propagated along the axial direction of the arresting cable, but also bending waves are propagated along the course of an airplane, and the characteristics have great influence on success of hook cable meshing and load of the arresting hook. The nonlinear bending rigidity of the arresting cable directly influences the dynamic characteristics of the arresting cable, and the bending rigidity test needs to be carried out through the test for accurately simulating and analyzing the characteristics of the arresting cable.
At present, the test of the arresting cable only comprises the test of axial tensile rigidity and breaking force, and the test of nonlinear bending rigidity of the arresting cable is not carried out.
It is therefore desirable to have a solution that overcomes or at least alleviates at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The application aims to provide a bending stiffness test device to solve at least one problem existing in the prior art.
The technical scheme of the application is as follows:
a bending stiffness test apparatus comprising:
a test bed, wherein a baffle is arranged on the test bed and divides the test bed into a first area and a second area, wherein,
a groove is formed in the first area, and a plurality of hoops are mounted on the groove;
a fixed rod and a steering wheel matched with the fixed rod are arranged on the second area;
one end of the first arresting cable is arranged in the groove of the first area and fixed with the test bed through a hoop, the other end of the first arresting cable is suspended outside the test bed, a first joint is arranged at the other end of the first arresting cable, and weights are arranged on the first joint;
one end of the second arresting cable is provided with a second joint, the second joint is hinged with the fixing rod of the second area after bypassing the steering wheel, the other end of the second arresting cable is suspended outside the test bed, a third joint is arranged at the other end of the second arresting cable, and weights are arranged on the third joint;
the flitch comprises a first flitch and a second flitch, grid recording paper is pasted on the first flitch and the second flitch, the first flitch is arranged at a position matched with a first area of the test bed and used for calibrating the first arresting cable, and the second flitch is arranged at a position matched with a second area of the test bed and used for calibrating the second arresting cable.
Optionally, the test bed is fixed on the ground by a plurality of supporting foot stands.
Optionally, the clamp is a cross swivel clamp.
Optionally, 5 cross swivel clamps are mounted along the groove.
Optionally, the test bed further comprises a hinge arranged around the test bed.
Optionally, the weights are bound to the corresponding joints by steel wires.
Optionally, the length of each of the first and second arresting cables is 2 m.
Optionally, the flitch is a 1m by 1m square flitch.
The invention has at least the following beneficial technical effects:
the utility model provides a bending stiffness test equipment draws through the grid recording paper after warping the arresting cable, and the test result draws the operation and simply just conveniently changes, through configuration weight, realizes the load of different loads, through changing anchor clamps diameter, can test different thickness arresting cable bending stiffness.
Drawings
FIG. 1 is a front view of a bending stiffness test apparatus according to one embodiment of the present application;
FIG. 2 is a top view of a bending stiffness test apparatus according to one embodiment of the present application;
FIG. 3 is a side view of a bending stiffness test apparatus according to an embodiment of the present application;
FIG. 4 is a schematic view of a bending stiffness test apparatus according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a bending stiffness test apparatus according to an embodiment of the present application for testing bending stiffness in an engaged state.
Wherein:
1-a test bed; 2-supporting foot stool; 3, pasting a board; 4-groove; 5-folding; 6-a baffle plate; 7-fixing the rod; 8-steering wheel.
Detailed Description
In order to make the implementation objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are some, but not all embodiments of the disclosure. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present application and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present application and for simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the scope of the present application.
The present application is described in further detail below with reference to fig. 1 to 5.
The application provides a bending stiffness test equipment, includes: the test bed 1, the first arresting cable, the second arresting cable and the flitch plate 3.
Specifically, as shown in fig. 1 to 3, a baffle 6 is arranged on the test bed 1, the baffle 6 divides the test bed 1 into two regions, a first region and a second region, wherein a groove 4 is formed in the first region, a plurality of hoops used for fixing the arresting cables are mounted on the groove 4, and a fixing rod 7 and a steering wheel 8 matched with the fixing rod 7 are arranged on the second region. In this embodiment, the preferred clamp is a cross swivel clamp, 5 clamps are installed along the groove 4, and the test bed 1 is fixed on the ground through a plurality of supporting foot stands 2.
Advantageously, in this embodiment, a hinge 5 is further included, and the hinge 5 is disposed around the test stand 1.
Furthermore, one end of the first arresting cable is arranged in the groove 4 of the first area and fixed with the test bed 1 through a hoop, the other end of the first arresting cable is suspended outside the test bed 1, a first joint is arranged at the end of the first arresting cable, weights are arranged on the first joint, and the weights are bound with the first joint through steel wires; one end of the second arresting cable is provided with a second joint, the second joint is hinged with a fixed rod 7 in a second area after bypassing the steering wheel 8, the other end of the second arresting cable is suspended outside the test bed 1, the third joint is arranged at the other end of the second arresting cable, weights are arranged on the third joint, and the weights are bound with the third joint through steel wires; the flitch 3 comprises a first flitch and a second flitch, grid recording paper is pasted on the first flitch and the second flitch, the first flitch is arranged at a position matched with a first area of the test bed 1 and used for calibrating a first blocking cable, and the second flitch is arranged at a position matched with a second area of the test bed 1 and used for calibrating a second blocking cable.
According to the bending stiffness test equipment, for the bending stiffness test of the suspension state of the arresting cable, the arresting cable with the length of 2m is selected, and one end of the arresting cable is pressed to form a connecting joint; arranging one end of a arresting cable in a groove 4 of a test bed 1 at a position which enables the arresting cable to be 1m on the test bed 1, and fixing the arresting cable through two cross-shaped rotary hoops with the distance of 150 mm; in addition, a 1m arresting cable with a connecting joint is suspended outside the test bed 1, and weights can be bound with the connecting joint of the arresting cable through steel wires, so that weights with different weights can be hung; a square plate 1m x 1m is vertically arranged behind the arresting cable to serve as a pasting plate 3, grid recording paper is pasted on the pasting plate 3, the deformed arresting cable line is drawn on the square plate, and the coordinate value of the marking point is recorded to be accurate to 1mm, as shown in figure 4.
According to the bending stiffness test equipment, for the bending stiffness test of the engaged state of the arresting cable, the arresting cable with the length of 2m is selected, and two ends of the arresting cable are pressed with connecting joints; one end of the arresting cable is wound around a steering wheel 8 and then hinged with a fixed rod 7 on a test bed 1 through a connecting joint, the steering wheel 8 is arranged 1m above a hinged point, weights with different weights are hung at the free end of the arresting cable, the weights are bound with the arresting cable connecting joint through steel wires, a 1m & ltx & gt 1m square plate is vertically arranged behind the arresting cable to serve as a pasting plate 3, grid recording paper is pasted on the pasting plate 3, the deformed arresting cable molded line is drawn on the square plate, and the coordinate value of a mark point is recorded and is accurate to 1mm, as shown in figure 5.
The bending stiffness test equipment can truly simulate the nonlinear bending stiffness of the arresting cable in a suspension state and an engagement state under the condition that the tire rolling cable is engaged with the arresting hook. Aiming at the loaded characteristics of the arresting cable, the combined bending rigidity test bed designed according to two constraint conditions can provide loaded-deformation curves of the arresting cable in a suspension state and an engaged state.
The bending stiffness test equipment provided by the application is used for drawing the arresting cable after deformation through the grid recording paper, the test result is simply and conveniently replaced, the weights are configured, loading of different loads is realized, and the bending stiffness of the arresting cables with different thicknesses can be tested by changing the diameter of the clamp.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A bending stiffness test apparatus, comprising:
the test bed (1), a baffle (6) is arranged on the test bed (1), the baffle (6) divides the test bed (1) into a first area and a second area, wherein,
a groove (4) is formed in the first area, and a plurality of hoops are mounted on the groove (4);
a fixed rod (7) and a steering wheel (8) matched with the fixed rod (7) are arranged on the second area;
one end of the first arresting cable is arranged in the groove (4) of the first area and fixed with the test bed (1) through a hoop, the other end of the first arresting cable is suspended outside the test bed (1), a first joint is arranged at the other end of the first arresting cable, and weights are arranged on the first joint;
one end of the second arresting cable is provided with a second joint, the second joint is hinged with the fixing rod (7) of the second area after bypassing the steering wheel (8), the other end of the second arresting cable is suspended outside the test bed (1), a third joint is arranged at the other end of the second arresting cable, and weights are arranged on the third joint;
the flitch (3), the flitch (3) include first flitch and second flitch, all paste the grid recording paper on first flitch and the second flitch, first flitch setting with the position of the first region looks adaptation of test bench (1) is used for demarcating first arresting cable, the second flitch setting with the position of the second region looks adaptation of test bench (1) is used for demarcating the second arresting cable.
2. The bending stiffness test equipment according to claim 1, wherein the test stand (1) is fixed on the ground by a plurality of supporting legs (2).
3. The bending stiffness test apparatus of claim 1, wherein the clamp is a cross swivel clamp.
4. Bending stiffness test equipment according to claim 3, wherein 5 cross swivel clips are mounted along the groove (4).
5. The bending stiffness test device according to claim 1, further comprising a hinge (5), wherein the hinge (5) is arranged around the test stand (1).
6. The bending stiffness test equipment according to claim 1, wherein the weights are bound with the corresponding joints by steel wires.
7. The bending stiffness test apparatus according to claim 1, wherein the first and second arresting cables each have a length of 2 m.
8. Bending stiffness test equipment according to claim 1, wherein the patch (3) is a 1m by 1m square plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011426626.0A CN112683502B (en) | 2020-12-09 | 2020-12-09 | Bending stiffness test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011426626.0A CN112683502B (en) | 2020-12-09 | 2020-12-09 | Bending stiffness test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN112683502A CN112683502A (en) | 2021-04-20 |
| CN112683502B true CN112683502B (en) | 2022-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011426626.0A Active CN112683502B (en) | 2020-12-09 | 2020-12-09 | Bending stiffness test equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900566A (en) * | 2019-04-08 | 2019-06-18 | 中国矿业大学 | The fretting fatigue testing device and method of steel wire under a kind of radial impact operating condition |
| CN110375944A (en) * | 2019-07-19 | 2019-10-25 | 中国矿业大学 | A kind of horizontal wirerope bending ejection impact vibration determination method and device |
| CN210119842U (en) * | 2019-04-25 | 2020-02-28 | 中电科海洋信息技术研究院有限公司 | Underwater intrusion alarm arresting system |
| CN111238970A (en) * | 2019-09-02 | 2020-06-05 | 中国矿业大学 | Drop hammer type steel wire rope impact failure test device and method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10711407B2 (en) * | 2016-06-10 | 2020-07-14 | The Port Authority Of New York And New Jersey | Engineered material arrestor system |
-
2020
- 2020-12-09 CN CN202011426626.0A patent/CN112683502B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109900566A (en) * | 2019-04-08 | 2019-06-18 | 中国矿业大学 | The fretting fatigue testing device and method of steel wire under a kind of radial impact operating condition |
| CN210119842U (en) * | 2019-04-25 | 2020-02-28 | 中电科海洋信息技术研究院有限公司 | Underwater intrusion alarm arresting system |
| CN110375944A (en) * | 2019-07-19 | 2019-10-25 | 中国矿业大学 | A kind of horizontal wirerope bending ejection impact vibration determination method and device |
| CN111238970A (en) * | 2019-09-02 | 2020-06-05 | 中国矿业大学 | Drop hammer type steel wire rope impact failure test device and method |
Non-Patent Citations (1)
| Title |
|---|
| 拦阻索应力的仿真研究;沈文厚等;《科学技术与工程》;20150518;第15卷(第14期);第224-228页 * |
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