一种新型碰撞试验装置及其控制系统的研发

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英文篇名：Research and Development of a Novel Crash Test Device and Its Control System 作者：宋志强 ; 曹立波 ; 陈龙 ; 张建强 英文作者：Song Zhiqiang;Cao Libo;Chen Long;Zhang Jianqiang;Hunan University,State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body; 关键词：碰撞试验 ; 减速度波形 ; 建模仿真 ; 有限元分析 ; 控制系统 英文关键词：collision test;;deceleration waveform;;modeling and simulation;;FEA;;control system 中文刊名：QCGC 英文刊名：Automotive Engineering 机构：湖南大学汽车车身先进设计制造国家重点实验室; 出版日期：2019-01-25 出版单位：汽车工程 年：2019 期：v.41;No.294 基金：福建省客车及特种车辆研发协同创新中心(2011计划)(2016BJC017);; 大学生研究性学习和创新性实验计划项目(湘教通[2018]255号)资助 语种：中文; 页：QCGC201901007 页数：8 CN：01 ISSN：11-2221/U 分类号：46-53

摘要

为降低新车型及车用部件在开发阶段的试验成本,本文中开发了一种新型对撞式台车碰撞试验装置。首先,通过Solid Works软件建立对撞式台车碰撞试验装置的各组成模块的三维模型;然后,利用Hyper Works和LS-dyna软件对其进行网格划分和有限元分析来获得碰撞时的减速度波形,在仿真结果的基础上,加工制造所设计的试验装置,并开发了电气控制系统,以实现试验装置在试验过程中的复位、预释放、释放和制动4个主要功能;最后,根据仿真结果选取合适的缓冲吸能模块对该台车碰撞试验装置进行了台车碰撞试验验证。结果表明,该台车碰撞试验装置可正常运行,并能复现出符合我国和国际法规要求的碰撞减速度波形,达到了预期的效果。
        In order to reduce the test cost of new car and its components at development stage,a new type of crash test device,head-on colliding sled,is developed in this paper. Firstly,a 3D model for each module of colliding sled is established with software SolidWorks. Then software HyperWorks and LS-dyna are used for mesh creation and finite element analysis to obtain the deceleration waveform of collision. Next,on the basis of simulation results the test device designed is produced with an electric control system developed for realizing four main functions of test sled: reset,pre-release,release and braking. Finally,the suitable buffering and energy-absorbing module is chosen according to simulation results to perform collision test for verification. The results show that the test device developed can operate normally and reproduce the collision deceleration waveform meeting the requirements of the national and international regulations,achieving the expected results.

引文

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