基于体压分布的人椅界面接触方案分析

Based on the musculoskeletal model of lumbar spine, a full-body model model was established, and a method of setting the contact scheme according to the pressure distribution was proposed,the relative contact strength is set as the relative magnitude of the vertical force of the hips, legs and feet, which improves the solution accuracy, and compares the effects of different average contact strength on the solution accuracy.The contact between the human body and the seat is replaced by 6, 8 and 14 contact points respectively. In general, 8 contact points can be selected. By comparing with the experimental measurement data in the literature, it is shown that setting the contact strength based on the pressure distribution can accurately reflect muscle activation and joint force.