轻型商用车的VPG技术及应用研究

The VPG Technology and Application Research of Light Commercial Vans

为了提高悬架系统零部件耐久分析精度,减少开发周期,降低开发成本,首先本文制定了适用于轻型商用车使用场景的悬架系统耐久分析工况和试验工况,然后建立整车多提动力学模型,应用虚拟试验场(DVP)技术,进行时域下的虚拟试验场道路的整车动力学仿真,并对悬架系统零部件进行载荷分解。最后采用分解后的载荷进行零部件的有限元分析。该方法更真实的反映了整车在实际路面悬架受力情况,考虑因素更加全面,精度更高,分析方法更加有效。

In order to the durability analysis accuracy of suspension system parts is improved,firstly,the development time is reduced,and costs is reduced,this paper the endurance analysis conditions and test conditions of the suspension system suitable for the use scenarios of light commercial vehicles are established,secondly,the vehicle multi-lift dynamic model is established,and the virtual proving ground(DVP)technology is applied,the vehicle dynamics of the virtual proving ground in the time domain is simulated,and the component load is decomposed of the suspension system parts.Finally,the decomposed load is used for the finite element analysis(FEA)of the component.This method more realistically reflects the force of the suspension of the whole vehicle on the actual road,and the considerations are more comprehensive,the accuracy is higher,and the analysis method is more effective.