Crashworthiness design and experimental validation of a novel collision post structure for subway cab cars

作     者：XING Jie XU Ping ZHAO Hui YAO Shu-guang WANG Qian-xuan LI Ben-huai 邢杰;许平;赵慧;姚曙光;王前选;李本怀

作者机构：Key Laboratory of Traffic Safety on TrackMinistry of EducationCentral South UniversityChangsha 410083China Joint International Research Laboratory of Key Technology for Rail Traffic SafetyChangsha 410083China School of Railway Tracks and TransportationWuyi UniversityJiangmen 529020China 

基　　金：Project(2016YFB1200505-016)supported by the National Key Research and Development Program of China Project(51675537)supported by the National Natural Science Foundation of China Project(2018zzts161)supported by the Independent Exploration and Innovation Project of Central South University,China 

出 版 物：《Journal of Central South University》 (中南大学学报（英文版）)

年 卷 期：2020年第27卷第9期

页      码：2763-2775页

摘      要：This paper proposes a novel collision post structure designed to improve the crashworthiness of subway cab *** structure provides two innovative features:1)a simpler connection between the post and the car roof,which gives a more reasonable load transfer path to reduce the stress concentration at the joint;and 2)a stiffness induction design that provides an ideal deformation model to protect the safe space of the cab *** novel collision post structure was evaluated with finite element analysis,and a prototype cab car was mechanically *** results demonstrate that the deformation response was stable and agreed well with the expected ideal *** maximum load was 874.17 kN and the responses remained well above the elastic design load of 334 kN as required by the design *** addition,there was no significant tearing failure during the whole test ***,the novel collision post structure proposed has met the requirements specified in new standard to improve the crashworthiness of subway cab ***,the energy absorption efficiency and light weight design highlights were also summarized and discussed.

主 题 词：collision post structure subway cab cars crashworthiness quasi-static test 

学科分类：0810[工学-土木类] 0806[工学-电气类] 08[工学] 082304[082304] 080204[080204] 0805[工学-能源动力学] 0703[理学-化学类] 0802[工学-机械学] 0812[工学-测绘类] 0823[工学-农业工程类] 

核心收录：

D　O　I：10.1007/s11771-020-4497-5

馆 藏 号：203984306...