Construction of Collision Equivalent Scaled Model for Locomotive Using Multi-Parameter Nondimensional Method
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Published:2023-05-23
Issue:
Volume:
Page:
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ISSN:0219-4554
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Container-title:International Journal of Structural Stability and Dynamics
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language:en
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Short-container-title:Int. J. Str. Stab. Dyn.
Author:
Yan Kaibo12,
Lu Sisi12ORCID,
Duan Hui1,
Shu Yang1,
Dong Shaojiang1
Affiliation:
1. School of Mechanotronics and Vehicle Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China
2. Chongqing Jialing Special Equipment Co. Ltd., Chongqing 400032, P. R. China
Abstract
At present, the research on crashworthiness of locomotive mainly adopts the method of theoretical analysis, numerical simulation and component test, it is too expensive and less repeatable to carry out vehicle crash tests. Therefore, a method to construct the collision equivalent scaled model (SM) for locomotive based on multi-parameter nondimensional is presented in this paper. Firstly, an equivalent method of structural dynamic responses was proposed. The extraction process and analysis method of dynamic responses for thin plate structures widely existing in locomotives were studied. Then, according to the structural characteristics of the locomotive, the partition equivalent design was carried out, and a dimensionless analysis model of impact dynamic responses for SM was established. Finally, the SM crash test was carried out to verify the effectiveness of collision equivalent SM established, it was found that the SM has high reliability, it can achieve equivalence with the locomotive for energy absorption, average impact force, average acceleration of cab and center of gravity of vehicle body. Carrying out the SM crash test can study the reasonable configuration of energy absorption parameters for locomotives and obtain the impact dynamic responses of locomotives under different configurations of energy absorption parameters.
Funder
China Postdoctoral Science Foundation
Natural Science Foundation of Chongqing
Science and Technology Research Program of Chongqing Municipal Education Commission
Publisher
World Scientific Pub Co Pte Ltd
Subject
Applied Mathematics,Mechanical Engineering,Ocean Engineering,Aerospace Engineering,Building and Construction,Civil and Structural Engineering