中图分类号： U463.82+2 文献标识码： A DOI： 10.19358/j.issn.2096-5133.2021.02.011 引用格式： 宁士翔，胡静波，庆光蔚，等. 基于RADIOSS的车身正面碰撞仿真分析[J].信息技术与网络安全，2021，40(2)：66-69.
Simulation analysis of car body frontal crash based on RADIOSS
Ning Shixiang，Hu Jingbo，Qing Guangwei，Wang Xiaoyan，Wang Shuang
(Big Data Center，Nanjing Special Equipment Safety Supervision Inspection and Research Institute，Nanjing 210019，China)
Abstract： Based on the car collision regulation of GB 11551-2014 “The protection of the occupants in the event of a frontal collision for motor vehicle”, aiming at coach body, the geometry model was imported into the HyperMesh software, geometric cleaning of the digital model of the car body was completed through topology repair, midface extraction and simplified model operations, and the finite element model of frontal crash was established. It set the material properties, and selected the spring unit solder joint model and TYPE7 contact type in the software RADIOSS. The frontal crash process of coach body was numerically simulated by the software RADIOSS. And coach body deformed, energy transfer rule, velocity and acceleration were analyzed. Through the comparison between simulation and test, the validity of coach body model was verified. The results show that the computer simulation method based on RADIOSS can not only guide the collision test of bus body, but also greatly reduce the cost of actual vehicle test, which has great engineering reference significance. This method provides the research foundation for the improvement of coach body structure.
Key words : coach body；frontal crash； RADIOSS；simulation