座椅体压分布仿真分析与评价

Simulation Analysis and Evaluation of Body Pressure Distribution on Seat

本文中基于H点测量装置(HPM)建立了详细的座椅体压分布仿真模型,而与座椅体压分布仿真分析紧密相关的泡沫和面料的材料参数则通过拉伸和压缩试验获得。通过与试验对比不同区域的最大压力值、平均压力、接触面积和占重比4项评价指标来验证模型的可靠性。结果表明,所建立的模型不仅可以准确反映体压分布的一般规律,并且H点测量装置的肩部、腰部和大腿处的各项体压分布指标,仿真与试验误差在10%以内,座椅仿真模型有效。

Based on the H-point machine （HPM）, a detailed simulation model of body pressure distribu-tion on seat is established in this paper. The material parameters of foam and fabric closely related to the simulationanalysis of body pressure distribution on seat are obtained through tensile and compression tests. The reliability of themodel is validated by comparing the maximum pressure, average pressure, contact area and weight ratio in differentregions. The results show that the established model can not only accurately reflect the general rule of body pressuredistribution, but also can accurately reflect the body pressure distribution indexes of shoulder, waist and thigh of theH-point machine. The error between the simulation and test is less than 10%, and the seat simulation model is effec-tive.