CN204495531U - A kind of vehicle collision dynamic test device - Google Patents
A kind of vehicle collision dynamic test device Download PDFInfo
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- CN204495531U CN204495531U CN201520164495.1U CN201520164495U CN204495531U CN 204495531 U CN204495531 U CN 204495531U CN 201520164495 U CN201520164495 U CN 201520164495U CN 204495531 U CN204495531 U CN 204495531U
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Abstract
The utility model relates to a kind of vehicle collision dynamic test device, comprise testing table and testing vehicle, described testing vehicle orbiting, it is characterized in that: also comprise one along the extending longitudinally and overall protective device in gantry shape of testing vehicle, described testing vehicle runs in the space surrounded by described protective device.The utility model one-piece construction advantages of simple, install and easy to operate, effectively can ensure the security that many cars crash dynamics is tested and integrally-built stability.Not only can carry out the experimental study of many car bodies longitudinal dynamics, can also by simply flipping upside down to protective device, realize the research of many car bodies longitudinal direction and vertical dynamics two contents of the test, heterogeneity experimental study can be completed at short notice, improve the efficiency of experimental study, and effectively save experimentation cost, foundation can also be provided for vehicle dynamics simulation calculates, and then ensure the reliability of train energy allocative decision.
Description
Technical field
The utility model relates to a kind of vehicle collision dynamic test device, belongs to crash dynamics experimental technique field.
Background technology
Along with the development of China's track traffic cause, especially EMU at home universal, vehicle operating safety pay attention to by increasing people, and the vehicle collision security in vehicle operating safety is a very important part.
Train collision security protection technology is divided into " active safety guard technology " and " passive security guard technology " two aspects; " active safety guard technology " is safe train operation indispensability; use properly the generation that effectively can prevent collision accident, this technology mainly comprises train grid and Train Control Technology, rationally sound railway signal and warning system, railway clearance security protection etc.But " active safety guard technology " is not very reliable.But, meeting " passive security guard technology " under Crash of Railway Passenger Vehicles safety standard condition, the safety of train composition, equipment and driver and conductor can protected when colliding and occurring to greatest extent.When colliding, when all active safety safeguard measures lost efficacy, vehicle passive security safeguard measure can provide last pipe protection for passenger, therefore, furtherd investigate more and more to whole train crash dynamics performance.
Be in the patent " a kind of rail vehicle bump testing machine and rail vehicle collision test method " of 201410629472.3 in the patent No., disclosed bump testing machine comprises track, for the dolly of push to test vehicle, for detecting the detecting device of testing vehicle speed and position, dolly is driven by drive motor, dolly realizes braking by braking motor, drive motor and braking motor set up the two ends at track separately, and dolly is affected by connection.It is mobile that dolly drives testing vehicle to accelerate under the driving of drive motor, detects the speed of testing vehicle simultaneously, when reaching predetermined speed, and braking dolly.This testing table and test method can significantly improve the degree of accuracy to testing vehicle speeds control in process of the test, but the testing vehicle in this testing table and test car without any safeguard procedures, simultaneously, this testing table can only be studied testing vehicle dynamic performance in the vertical, then cannot carry out value research for testing vehicle at the dynamic performance on vertical.
Utility model content
The utility model fundamental purpose is to solve the problem, and provides a kind of structure simple, safe and reliable, is conducive to carrying out to testing vehicle the vehicle collision dynamic test device that vertical and longitudinal dynamics performance tests.
For achieving the above object, the technical solution of the utility model is:
A kind of vehicle collision dynamic test device, comprise testing table and testing vehicle, described testing vehicle orbiting, it is characterized in that: also comprise one along the extending longitudinally and overall protective device in gantry shape of testing vehicle, described testing vehicle runs in the space surrounded by described protective device.
Further, described protective device forms along the box structure that testing vehicle is extending longitudinally by two, two box structures are symmetrical set the both sides at track, described box structure has an inner fovea part towards the side of described testing vehicle, the inner fovea part of two described box structures is symmetrical arranged, and described testing vehicle runs in the space that two described inner fovea parts surround.
Further, the upper plate of described box structure and/or lower shoe at least extend an extension to the direction of described testing vehicle.
Further, described box structure is formed by steel plate splicing assembly welding.
Further, described box structure is provided with multiple fabrication hole.
Further, each described box structure divides upper and lower two parts, is respectively upper box and lower box, is fixedly connected with between described upper box and lower box by securing member.
Further, described protective device is fixedly mounted on described testing table by securing member.
Further, the side of described testing table is provided with backstop wall, and described backstop wall is provided with multiple force snesor.
Further, described backstop wall is provided with honeycomb aluminum energy-absorbing module.
To sum up content, a kind of vehicle collision dynamic test device described in the utility model, compared with prior art, tool has the following advantages:
(1) the utility model one-piece construction advantages of simple, install and easy to operate, effectively can ensure the security that many cars crash dynamics is tested and integrally-built stability.
(2) the utility model not only can carry out the experimental study of many car bodies longitudinal dynamics, can also by simply flipping upside down to protective device, realize the research of many car bodies longitudinal direction and vertical dynamics two contents of the test, heterogeneity experimental study can be completed at short notice, improve the efficiency of experimental study, and effectively save experimentation cost, foundation can also be provided for vehicle dynamics simulation calculates, and then ensure the reliability of train energy allocative decision.
(3) box structure is fixedly secured by bolt and is arranged on testing table, not only simple to operation, can also ensure safe and reliable in process of the test of testing vehicle.
Accompanying drawing explanation
Fig. 1 is the utility model test unit structural representation;
Fig. 2 is the structural representation of the utility model embodiment one box structure;
Fig. 3 is the structural representation after the utility model embodiment one box structure and testing vehicle are assembled;
Fig. 4 is the sectional schematic diagram of the utility model embodiment one box structure;
Fig. 5 is the sectional schematic diagram after the upset of the utility model embodiment one upper box.
As shown in Figures 1 to 5, testing table 1, testing vehicle 2, power car 3, track 4, backstop wall 5, high-speed photography acquisition system 6, protective device 7, box structure 8, upper box 8a, lower box 8b, inner fovea part 9, roof 9a, sidewall 9b, upper plate 10, lower shoe 11, extension 12, extension 13, mounting hole 14, mounting hole 15, fabrication hole 15, mounting hole 17, installation portion 18, stiffening plate 19.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:
Embodiment one:
As shown in Figure 1, a kind of vehicle collision dynamic test device that the utility model provides, comprise testing table 1, testing vehicle 2 and power car 3, attachment rail 4 on testing table 1, testing vehicle 2 and power car 3 run on track 4.
In order to short form test difficulty, testing vehicle 2 adopts a kind of simplification vehicle, and the structure, the organizational systems that simplify vehicle are the same with real vehicles with performance, just scaled dimensionally.The coupler and draft gear, conquassation pipe, end energy absorption device etc. that mate with it is provided with in the leading section of testing vehicle 2, car body itself is the same with real vehicles has enough rigidity, each car body is connected by united equipment, and in vehicle collisions, above-mentioned each structure cooperatively interacts absorption energy.
Power car 3 is arranged on the rear of testing vehicle 2, driven by hauling power device (not shown), the front end of power car 3 lean testing vehicle 2 afterbody so that drive testing vehicle 2 to run by fixing speed on track 4, hauling power device can adopt drive motor, drive motor can be arranged separately on testing table 1, also can be arranged on power car 3.
Arrange a backstop wall 5 in the front of testing vehicle 2, backstop wall 5 is fixed on testing table 1, and testing vehicle 2 runs forward under the drive of power car 3, and clashes into the backstop wall 5 in front with setting speed, completes impact test.Because impact test has larger energy, therefore on backstop wall 5, near the position of testing vehicle 2, honeycomb aluminum energy-absorbing module is installed, also other can be adopted to have the energy-absorbing module of energy absorption ability, produce destruction to prevent testing vehicle 2 and backstop wall 5 from rigid collision occurring.Simultaneously, because backstop wall 5 is immovable object in process of the test, in order to obtain more test figure, at the back side of backstop wall 5, multiple force snesor (not shown) is installed, force snesor is used for detecting each point impact data when testing vehicle 2 clashes into backstop wall 5, and the installation site of force snesor is determined according to testing requirements.High-speed photography acquisition system 6 is installed above testing table 1, whole process is carried out to the operation of testing vehicle 2 and collision process and makes video recording, for later stage displacement calculating amount, speed and acceleration etc.
Also comprise one in this test unit along the extending longitudinally and overall protective device 7 in gantry shape of testing vehicle, testing vehicle 2 runs in the space surrounded by protective device 7.When longitudinal dynamics performance test is carried out to testing vehicle, the bottom of the protective device 7 of gantry shape is fixedly mounted on testing table 1, when longitudinal direction and vertical dynamics performance test are carried out simultaneously to testing vehicle, flipped upside down by the protective device 7 of gantry shape, its top is fixedly mounted on testing table 1.The top of gantry shape protective device 7 can have portable plate, to avoid track 4 on testing table 1 and backstop wall 5 when being inverted.
In the present embodiment, in order to simplify one-piece construction, make installation and operate more convenient, protective device 7 preferably adopts Split type structure as shown in Figures 2 and 3, simultaneously in order to ensure the bulk strength of protective device 7, protective device 7 forms along the box structure 8 being roughly rectangle that testing vehicle 2 is extending longitudinally by two, two box structures 8 are symmetrical set in the both sides of track 4, box structure 8 has an inner fovea part 9 towards the side of testing vehicle 2, the section of inner fovea part 9 is rectangular, the inner fovea part 9 of two box structures 8 is symmetrical arranged, testing vehicle 2 runs in the space that two inner fovea parts 9 surround.The roof 9a of inner fovea part 9 and the upper plate of box structure 8 10 pairs of testing vehicles 2 play the effect of protection, in order to realize testing vehicle 2 stability in a longitudinal direction, the roof 9a of inner fovea part 9 also can facilitate the performance data of collecting test vehicle 2 on longitudinal and vertical direction simultaneously.
Testing vehicle 2 all has a setpoint distance apart from the sidewall 7a of box structure 8 inner fovea part 9 and roof 7b, not only ensure the trouble-free operation of testing vehicle 2, the security of testing vehicle 2 on longitudinal and vertical direction can also be ensured, also the friction force of vehicle on vertical and longitudinal direction is greatly reduced, also ensure the dynamic response behavior of testing vehicle 2 in longitudinal and vertical direction simultaneously, foundation is provided, to ensure the reliability of train energy allocative decision for vehicle dynamics simulation calculates.When actual tests, also can according to test needs, installing force sensor on the roof 9a, sidewall 9b of inner fovea part 9, with detect the transverse direction of testing vehicle 2 when longitudinally running along track 4 and when clashing into backstop wall 5 and vertical on data.
The upper plate 10 of box structure 8 respectively extends an extension 12 to both sides, the extension 12 of both sides is respectively provided with multiple mounting hole 14.Lower shoe 11 respectively extends an extension 13 too to both sides, the extension 13 of both sides is respectively provided with mounting hole 15.Extension 12 is fixedly connected with testing table 1 by bolt with mounting hole 15 with the mounting hole 14 on 11, install simple and convenient, and extension 12 and 11 the contact area that can increase box structure 8 and testing table 1 is set, make the fixing more firm of box structure 8, in addition, the extension 12 extended to testing vehicle 2 direction of upper plate 10 also has the effect of warranty test security.
As shown in Figure 4 and Figure 5, when carrying out longitudinal direction and vertical dynamics performance test to testing vehicle simultaneously, box structure 8 is needed to flip upside down, conveniently operate, in the present embodiment, each box structure 8 also adopts Split type structure, be divided into upper and lower two parts, be respectively upper box 8a and lower box 8b, the diapire of upper box 8a and the roof of lower box 8b be respectively arranged with multiple mounting hole 17, be bolted to connection together between the diapire of upper box 8a and the roof of lower box 8b.In order to fixedly secure, the diapire of upper box 8a and the roof of lower box 8b respectively stretch out an installation portion 18 laterally, and mounting hole 17 arranges two rows, and a row is arranged on the diapire of upper box 8a and the roof of lower box 8b, and another row is then arranged on the installation portion 18 stretched out.
Upper box 8a and lower box 8b forms by steel plate splicing assembly welding, preferably adopts carbon steel sheet, and adopts full weld technique, is also welded with stiffening plate 19, thus guarantees the security of process of the test in the inside of upper box 8a and lower box 8b.
When only carrying out longitudinal dynamics performance test to testing vehicle 2, mounting hole 15 on lower shoe 11 both sides extension 13 is mounted by means of bolts on testing table 1, together with being bolted to connection with lower box 8b by upper box 8a, testing vehicle 2 longitudinally runs in the space that two inner fovea parts 9 surround again.
When carrying out longitudinal direction and vertical dynamics performance test to testing vehicle simultaneously, two upper box 8a flip upside down by the part then removing lower box 8b, the top of testing vehicle 2 is no longer subject to the restriction of box structure 8, mounting hole 14 on its upper plate 10 both sides extension 12 is mounted by means of bolts on testing table 1, during installation, extension 12 avoids the track 4 on testing table 1, and testing vehicle 2 runs in the space that two box structures 8 surround.
As shown in Figure 2, in the present embodiment, the steel of the outside side wall of the upper box 8a of box structure 8 are offered multiple oblong fabrication hole 15, and the perforate length of fabrication hole 15 is 100mm, and fundamental purpose is fixed used to upper box 8a and lower box 8b two parts.
Test procedure is described below in detail:
1, simulation calculation:
Determine operating condition of test, carry out many car body collisions finite element stimulation according to operating condition of test, extract result of calculation, comprise model displacement, model velocity, model acceleration etc.
2, impact test:
When only carrying out longitudinal dynamics performance test to testing vehicle 2, first the lower shoe 11 of body structure 6 is bolted on testing table 1, together with again upper box 8a being bolted to connection with lower box 8b, finally testing vehicle 2 is dropped on track 4, fixing endergonic structure also between connecting test vehicle 2, guarantees the performability of train in protective device.
When carrying out longitudinal direction and vertical dynamics performance test to testing vehicle simultaneously, then remove the part of lower box 8b, upper box 8a is flipped upside down, and the upper plate 10 of upper box 8a is bolted on testing table 1, two upper box 8a surround the space of an open top, eliminate the restriction of testing vehicle 2 on vertical, and then realize carrying out longitudinal direction and vertical dynamics performance test to testing vehicle simultaneously.
The irradiation position of debugging high-speed photography acquisition system 6, starts drive motor simultaneously, tests.Under the effect of drive motor, power car 3 is along track 4 to testing vehicle 2 direction accelerated motion, the front end of power car 3 lean testing vehicle 2 afterbody so that drive testing vehicle 2 to run by fixing speed on track 4, after testing vehicle 2 reaches fixing speed, drive motor shuts down, power car 3 slows down and departs from testing vehicle 2, and testing vehicle 2 clashes into backstop wall 5 with fixing speed, and high-speed photography acquisition system 6 whole process is made video recording.
3, Data Comparison:
The data such as deflection, speed, acceleration between vehicle in comparative analysis simulation calculation and process of the test.
4, revise:
Debugging emulation model, by amendment model parameter (comprising friction factor, model quality, speed), warranty test is consistent with emulation.
5, verification model:
Draw the method for correction, the method revised is applied to permutation car Dynamics Simulation and calculates.
Embodiment two:
Box structure 8 also can adopt overall structure, to make no distinction of rank two parts, when carrying out longitudinal direction and vertical dynamics performance test to testing vehicle 2 simultaneously, be inverted by two box structure 8 integrated overturns, the mounting hole 14 on upper plate 10 both sides extension 12 is mounted by means of bolts on testing table 1.
As mentioned above, plan content given by reference to the accompanying drawings, can derive similar technical scheme.In every case be that not depart from originally be the content of utility model technical scheme, any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. a vehicle collision dynamic test device, comprise testing table and testing vehicle, described testing vehicle orbiting, it is characterized in that: also comprise one along the extending longitudinally and overall protective device in gantry shape of testing vehicle, described testing vehicle runs in the space surrounded by described protective device.
2. a kind of vehicle collision dynamic test device according to claim 1, it is characterized in that: described protective device forms along the box structure that testing vehicle is extending longitudinally by two, two box structures are symmetrical set the both sides at track, described box structure has an inner fovea part towards the side of described testing vehicle, the inner fovea part of two described box structures is symmetrical arranged, and described testing vehicle runs in the space that two described inner fovea parts surround.
3. a kind of vehicle collision dynamic test device according to claim 2, is characterized in that: the upper plate of described box structure and/or lower shoe at least extend an extension to the direction of described testing vehicle.
4. a kind of vehicle collision dynamic test device according to claim 2, is characterized in that: described box structure is formed by steel plate splicing assembly welding.
5. a kind of vehicle collision dynamic test device according to claim 2, is characterized in that: on described box structure, be provided with multiple fabrication hole.
6. a kind of vehicle collision dynamic test device according to any one of claim 2 to 5, it is characterized in that: each described box structure divides upper and lower two parts, be respectively upper box and lower box, be fixedly connected with by securing member between described upper box and lower box.
7. a kind of vehicle collision dynamic test device according to claim 1, is characterized in that: described protective device is fixedly mounted on described testing table by securing member.
8. a kind of vehicle collision dynamic test device according to claim 1, is characterized in that: the side of described testing table is provided with backstop wall, described backstop wall is provided with multiple force snesor.
9. a kind of vehicle collision dynamic test device according to claim 8, is characterized in that: on described backstop wall, be provided with honeycomb aluminum energy-absorbing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164495.1U CN204495531U (en) | 2015-03-23 | 2015-03-23 | A kind of vehicle collision dynamic test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164495.1U CN204495531U (en) | 2015-03-23 | 2015-03-23 | A kind of vehicle collision dynamic test device |
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| CN204495531U true CN204495531U (en) | 2015-07-22 |
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| CN201520164495.1U Withdrawn - After Issue CN204495531U (en) | 2015-03-23 | 2015-03-23 | A kind of vehicle collision dynamic test device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729820A (en) * | 2015-03-23 | 2015-06-24 | 南车青岛四方机车车辆股份有限公司 | Vehicle collision dynamic test device and method |
| CN108507806A (en) * | 2018-03-14 | 2018-09-07 | 中南大学 | Train occupant's secondary collision pilot system and method |
| CN110781559A (en) * | 2019-10-30 | 2020-02-11 | 中车长春轨道客车股份有限公司 | Optimized design method for collision resistance of railway vehicle body |
-
2015
- 2015-03-23 CN CN201520164495.1U patent/CN204495531U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729820A (en) * | 2015-03-23 | 2015-06-24 | 南车青岛四方机车车辆股份有限公司 | Vehicle collision dynamic test device and method |
| CN104729820B (en) * | 2015-03-23 | 2017-04-05 | 中车青岛四方机车车辆股份有限公司 | A kind of vehicle collision dynamic test device and test method |
| CN108507806A (en) * | 2018-03-14 | 2018-09-07 | 中南大学 | Train occupant's secondary collision pilot system and method |
| CN108507806B (en) * | 2018-03-14 | 2019-09-20 | 中南大学 | Train occupant's secondary collision pilot system and method |
| CN110781559A (en) * | 2019-10-30 | 2020-02-11 | 中车长春轨道客车股份有限公司 | Optimized design method for collision resistance of railway vehicle body |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Jihongtan town Chengyang District Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee after: CRRC QINGDAO SIFANG CO., LTD. Address before: Chengyang District of Qingdao city Jihongtan town Shandong city Qingdao province Jinhong road 266111 No. 88 Patentee before: CSR Qingdao Sifang Locomotive and Rolling Stock Co., Ltd. |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150722 Effective date of abandoning: 20170405 |
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| AV01 | Patent right actively abandoned |