跨组别前向式儿童约束系统动态性能仿真研究

目前保护儿童乘员的主要方法就是推行儿童约束系统的使用。当前市场上的儿童约束系统多为跨组别的，这类产品在经济性和使用便利性方面有较大优势，但在动态性能方面却没有单一组别产品理想。结合某款跨组别前向式儿童约束系统的正面碰撞台车试验来验证利用MADYMO软件为其建立的仿真模型。以此为基础，对儿童约束系统在不同组别模式下正面碰撞的动态性能进行分析，找出其中的关键因素，再通过参数优化使其性能达到较为理想的效果，为儿童约束系统的优化设计提供一定的依据。

Dynamic Performance Simulation Study of Forward-facing Child Restraint System Used for more than One Age Group

At present,the major method for child passenger safety is to introduce the use of CRS（child restraint system）. In current market,most products of CRS can be used for more than one group separated by child＇s age and body size. The advantages of them are economical and convenient, but for the dynamic performance the product which can only be used for one group is much better. This research built a CAE model of forward-facing CRS which can used for more than one group with the frontal impact sled test environment prescribed in ECE R44 regulation using the MADYMO code. Based on the simulation results of this kind of CRS under different modes, the key factors of CRS design can be discovered. Through proper optimization method, the dynamic performance of CRS product can be improved to reduce child passenger injury risk in a crash accident.