人体不对称运动在多因素干扰下稳定性研究

Study on the Stability of Asymmetric Human Motion Under Multi-Factor Interference

为针对人体不对称运动在多因素干扰下稳定性变化的问题,以人体的运动学与动力学为基础,分别定义了上身负重载荷性能因子、干扰外力性能因子及人体姿态性能因子,并将三种性能因子通过加权的方式得到人体蹲起运动稳定性评价准则。最后进行人体蹲起实验与仿真计算,对比分析了三种性能因子对蹲起运动过程中稳定性的影响程度。实验与仿真结果表明:人体不对称运动的稳定性会受到自身和外界多种因素的影响,并且在蹲起过程前期稳定性较低,该理论可以准确判断蹲起过程中人体稳定性变化情况。

In order to solve the problem of stability change of human asymmetric motion under multi-factor interference,based on kinematics and dynamics of human body,it defines performance factors of upper body load-bearing,interference external force and human posture respectively,and obtains human squatting and lifting by weighting the three performance factors. Dynamic stability evaluation criteria.Finally,the human squat experiment and simulation calculation are carried out,and the effects of three performance factors on the stability of squat movement are compared and analyzed. Experiments and simulation results show that the stability of human asymmetric motion is affected by many factors,such as itself and the outside,and the stability is low in the early stage of squatting process.This theory can accurately judge the change of human stability during squatting process.