Simulation and Optimization of A Seat Whipping Test
The results of whiplash test show that whiplash injury is very serious and whiplash score is low.To solve this problem,the seat finite element model was established by HyperMesh software,and the whipping simulation analysis was carried out.The factors affecting substantially whipping injury were analyzed as follows:angle adjuster stiffness coefficient,head pillow rod diameter,thickness of backrest left support plate,thickness of backrest right support plate,thickness of backrest rear support plate,thickness of seat cushion left support plate and thickness of seat cushion right support plate.The above seven influencing factors were taken as design variables,sample points were collected by Hammersley experimental design,and approximate model fitting was carried out by moving least square method.The global response surface method was used to perform multi-objective optimization of the approximate model.The verification results show that the accuracy of the optimized model meets the requirements,and the whip score was increased,which greatly enhanced the seat's ability to prevent whip injury.
万方数据
维普
