摘要
采用数值仿真和试验方法,建立某全承载客车有限元模型,进行30km/h正面100%重叠碰撞刚性壁障仿真分析。根据分析结果对原客车前部结构进行改进设计,主要包括碰撞吸能器、车架传力结构优化和驾驶员座椅后移结构等。最后通过仿真和实车碰撞试验对改进后的车辆进行安全性能验证,结果显示改进方案可有效减少客车前部结构的变形量,保障驾驶员生存空间不被侵入,降低车身加速度峰值。研究结果对提升客车被动安全性具有很好的工程应用价值。
The numerical and experimental methods were used to establish a finite element model of an integral coach and to conducted full overlap barrier crash at 30km/h.Based on the analysis results,the front structure of the original coach was improved,including the collision energy absorber,the improvement of the frame transmission structure,and the rearward movement structure of the driver’s seat.Finally,the improved coach was verified through simulation and real collision tests.The results indicated that it was necessary to optimize the front absorbing components of the coach to improve the protection level of passengers and the crashworthiness of drive cab and to reduce the peak acceleration of the coach body.The research results have a good engineering application for improving the passive safety of integral coaches.
作者
司俊德
王铨溥
张博强
吴心平
SI Jun-de;WANG Quan-pu;ZHANG Bo-qiang;WU Xin-ping(School of Mechanical and Electrical Engineering,He'nan University of Technology,He'nan Zhengzhou 450001,China)
出处
《机械设计与制造》
北大核心
2022年第10期204-207,共4页
Machinery Design & Manufacture
基金
河南省高等学校重点科研项目计划(22A460011)
河南工业大学高层次人才基金项目(2019BS062)。
关键词
全承载客车
被动安全性
正面碰撞
仿真分析
结构改进
Integral Coach
Passive Safety
Frontal Crash
Simulation Analysis
Structure Improved
