Test method and device for railway vehicle anti-wind-overturning capability
A technology for capacity testing, railway vehicles, applied in the field of rail transportation
Active Publication Date: 2013-06-26
CRRC QINGDAO SIFANG CO LTD
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Problems solved by technology
It is impossible to realize the reproduction and specific measurement of relevant factors affecting the overturning state of railway vehicles in a controllable state
Method used
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Embodiment 1
[0057] Example 1, such as Figure 1 to Figure 3 As shown, the test device used to implement the test method for the anti-overturning ability of railway vehicles mainly includes a loading beam 10 , a simulated vehicle body loading platform 1 and a simulated track platform 3 . in,
[0058] Between the loading beam 10 and the simulated vehicle body loading platform 1, the first vertical actuator 11, the second vertical actuator 12 and the first lateral actuator 13 are connected;
[0059] The simulated car body loading platform 1 is carried on the bogie frame 2 through the central traction device and the secondary suspension device. The bogie frame 2 is carried on the wheel 4 through the primary suspension device and the axle box. The wheel 4 is carried on the simulated track platform 3. A multi-degree-of-freedom force sensor 6 is installed between the simulated track platform 3 and the track tooling 5.
[0060] The simulated track platform 3 is respectively connected with one s...
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The invention relates to a test method and a test device for the railway vehicle anti-wind-overturning capability. According to the method and the device, the anti-wind-overturning capability can be controllably tested in a laboratory, the specific test specification and the process are achieved by simulating the variable stress and the moment which are applied to railway vehicle wheels by a railway vehicle body loading platform in order to improve the accuracy of the testing of the probability of the overturning of a railway vehicle body under stress, and accordingly the test basis of subsequent targeted implementing of the structure design and effect evaluation of the railway vehicle anti-wind-overturning capability is established, and the verification of the correctness and reliability of a railway vehicle simulation calculation model. The test method includes setting a plurality of groups of Fy (n), Fz (n) and Mx (n) (n is an integer) on the basis of the calculated pneumatic transverse force Fy, pneumatic vertical force Fz and pneumatic moment Mx of the center of the mass of the railway vehicle body, the dynamic load Pd is measured to test whether the dynamic load Pd reaches or exceeds the set limiting value of the overturning coefficient D by simulating the transverse force, the vertical force and the moment which are applied to railway vehicle wheels by the railway vehicle body loading platform, and the probability of the overturning of the railway vehicle is tested.
Description
technical field [0001] The invention relates to a test method and device for simulating and verifying the overturning possibility of a railway vehicle under a strong wind condition, and belongs to the technical field of rail transportation. Background technique [0002] With the rapid popularization of domestic urban rail transit and the substantial increase in vehicle speed, higher requirements are put forward for the design and test of safety performance during high-speed driving. [0003] The anti-overturning ability of railway vehicles refers to the operating speed limit curve of the vehicle under the specific environmental wind speed and line state, which reflects the correspondence between the operating speed limit (x-axis) and the wind speed level (y-axis) under a certain overturning coefficient limit. relation. [0004] According to the standard provisions of GB_5599-85 Railway Vehicle Dynamic Performance Evaluation and Test Appraisal Specification, the overturning ...
Claims
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IPC IPC(8): G01M17/08
Inventor 李海涛张洪宋晓文虞大联张志强陈大伟王斌赵长龙王晓军徐冠基斯蒂文海格
Owner CRRC QINGDAO SIFANG CO LTD