基于多点冲击的侧面碰撞台车试验方法

Side Impact Sled Test Method Based on Multipoint Impact

摘要:

通过对侧面碰撞过程中车门内饰板运动过程的分析，简化车门侵入速度，建立了一种基于质量弹簧模型的可以复现车门板上多个点运动的侧面碰撞台车试验方法.在此基础上建立了基于MADYMO软件的侧面碰撞台车 假人有限元模型.通过仿真计算验证表明，基于多点运动复现的侧面碰撞台车试验得到的假人伤害值与整车试验得到的假人伤害值有很好的一致性.结果表明，该台车试验方法可以很好地复现车门内饰板、座椅与假人之间的相互作用关系，而且该方法非常易于在工程上实现，可以满足工程应用的需要.

Abstract:

Based on the analysis of the movement of the door trim during the side impact and the simplification of the door trim intrusion velocity, a mass spring side impact sled test method which could reproduce multipoint movement of the door was established. Then a side impact sled model with dummy was established and its computer simulation showed that there was a high correlation of dummy injury between the injury gaining from the side impact sled test based on multiple movement reproduction and the result of the real side impact test. The results of the dummy’s injury showed that the side impact sled test method could well reproduce the interaction between the door trim, the seat and the dummy. The new method can be easily implemented in engineering and can satisfy engineering application.