摘要
汽车车身B柱是侧面碰撞过程中最重要的载荷承载部件,其变形模式和能量吸收对其入侵速度和入侵量有重要影响,并最终影响乘员损伤。针对某车型B柱的侧面碰撞性能设计,首先建立了整车侧面碰撞仿真模型,然后采用从整车模型中提取B柱子系统模型的方法,从而大大提高计算效率,并对子系统模型进行了验证,基于该子系统模型完成了车身B柱的侧面碰撞性能优化设计。工程算例表明,该方法在B柱的性能优化设计方面具有较强的工程实用性。
A utomotivebody B-pillar is the most important load-bearing parts during a side impact. The deformation mode and energy absorption have an important impact on the intrusion velocity and displacement, which induce the occupant injury. In this paper, aiming at impact performancedesign of the B-pillar, firstly the full side impact model is built, and then the subsystemsimulation model is extracted from the total vehicle model. The method greatly improves the computational efficiency.The B pillar subsystem model was validated. Based on the subsystem model, side impact performance optimization of the B-pillar is completed. The engineering examples show that the method has a strong engineering practicability for performance optimization design of the B-pillar.
作者
鲁后国
李铁柱
阚洪贵
LU Hou-guo LI Tie-zhu KAN Hong-gui(Anhui Jianghuai Automotive Co.Ltd, Anhui Hefei 230601, china)
出处
《机械设计与制造》
北大核心
2017年第7期220-222,共3页
Machinery Design & Manufacture
关键词
侧面碰撞
子系统模型
B柱设计
仿真分析
Side Impact
Subsystem Model
B-Pillar Design
Simulation Analysis
