多样本分析在汽车内饰异响仿真中的应用

传统的仿真分析,都是根据名义设计值得到相应的名义结果,仿真结果为一个确切的值.工程实践中,材料生产、部件装配都会产生一些误差,导致实际产品偏离名义设计,从而使得实际产品表现出的性能处于一个区间.因此,传统的仿真分析方法并不能预测实际产品可能出现的全部情况.对于车辆内饰异响分析,涉及的塑料件材料参数以及卡扣连接参数,往往...

The Application of MSA in the S&R Simulation of Vehicle InteriorLi Yici,Liu Jiechang,Gu

In the traditional simulation analysis,the nominal result is obtained according to the nominal design value,and the simulation result is an exact value.In engineering practice,there are some errors in material production and parts assembly,which lead to the deviation of actual product from nominal design,and the performance of actual product is in a range.Therefore,the traditional simulation analysis results can’t predict the whole situation of the actual product.For the analysis of vehicle interior rattle&squeak,the material parameters of plastic parts and the parameters of clips often fl uctuate in a large range.In addition,with the increase of vehicle service time,the aging of plastics and rubber will also bring changes in material parameters.Therefore,it is not robust to use the nominal simulation results to predict the actual rattle&squeak performance of vehicles.Using multi-sample analysis method,considering the fl oating of relevant parameters,more robust simulation results can be obtained,which can better guide the development of rattle&squeak performance.