摘要
人体运动过程中,身体各部位的运动学参数对分析人体运动起着至关重要的作用。通过分析人体运动过程中,关节坐标系相对世界坐标系的瞬时位置关系,以及各时刻关节坐标系空间位置关系,提出了基于关节坐标系的人体运动学参数计算数学模型。然后,采用运动捕捉系统对运动员抓举运动过程进行数据采集,并通过仿真分析了上臂运动过程的质心加速度和角加速度。仿真结果符合运动规律,说明了数学模型的有效性。
The kinematical parameters in each segment of human body play an important role in analyzing the human movement.At first,the joint coordinate system（JCS） of human upper limb based on the anatomical landmarks is defined.Then a novel method based on the JCS for calculating the kinematical parameters is brought forward by means of analyzing the relative position of the JCS to world coordinate system during instantaneous situation and relationship among each JCS at different time during human movement.Finally,motion capture system is used to gather the data of the weight lifter during squat snatch,the translational acceleration and angular acceleration.The simulation result is consistent with the movement rule,which indicates the validity of the mathematical model.
出处
《计算机仿真》
CSCD
北大核心
2011年第8期94-97,241,共5页
Computer Simulation
关键词
运动学仿真
关节坐标系
上肢
Kinematical simulation
Joint coordinate system
Upper limb
