Human Kinematics Modeling and Simulation Based on OpenSim

Hongbo Kang, Yanwei Li, Dejun Liu, Chunjie Yang

Abstract: Human motion kinematics is the basis of human motion capture and recognition. In this paper., the human body is simplified into a hierarchical joint chain skeletal model composed of several joints and bones., and the rotational freedom., joint constraints., and joint rotation Angle ranges of each joint are added into the human body model., so as establish the hierarchical joint chain skeletal model based on constraints. At the same time., this paper established two coordinate systems., namely geographic coordinate system., and human coordinate system., and used quaternion to describe the movement of a single limb in space. At last., OpenSim software was used for modeling and simulation., and the Angle changes of knee joint and ankle joint were simulated and tested when a human body kicked action., and good results were obtained.