铁道科学与工程学报2018，Vol.15Issue(4)：1016-1022,7.
基于多体动力学的地铁列车吸能量设计
Energy absorption design of metro train based on multibody dynamics
摘要
Abstract
Subway train energy absorption parameters are reasonable to ensure that the subway train impact resistance performance of the fundamental factors. In order to improve crashworthiness and optimize the energy absorption of metro train head and middle car, an one-dimensional computational model for locomotive vehicles was built in MADYMO multibody dynamics software. The results of calculations using the model were then fitted by multiple linear-regression functions and the influence of relevant factors on the energy absorption of subway train was analyzed. The results show that by studying the influence of the single train mass, the marshalling and the crushing force on the suction energy of the subway train, the energy fitting formula of the subway train head car is obtained as W=0.116 2 αM ν2?0.1 F and the fitting accuracy of the model is 98.99%. The energy fitting formula of the2001016 subway train middle car is obtained as W=5.926*10?4αM ν2+0.038 3 F,and the fitting accuracy of the model is 94.42%. The above relationship can provide theoretical support for the allocation of energy parameters of subway train, which can be applied to the design process of subway train energy absorp.关键词
地铁列车/耐撞击性能/多体动力学/多元线性回归Key words
subway train/impact resistance/multibody dynamics/multiple linear regression引用本文复制引用
王宝金,闫凯波,陆思思,朱慧芬,姚曙光..基于多体动力学的地铁列车吸能量设计[J].铁道科学与工程学报,2018,15(4):1016-1022,7.基金项目
国家自然科学基金重点资助项目(51675537) （51675537）
国家重点研发计划资助项目(2016YFB1200404-04) （2016YFB1200404-04）
