太极拳旋转动作下人体能量转换数值仿真

发布时间：2018-04-03 10:27

本文选题：太极拳旋转动作　切入点：人体能量转换　出处：《计算机仿真》2017年08期

【摘要】：在太极拳运动中,对旋转动作产生的人体能量转化研究可以计算出肢体相对运动的动量。在进行数值分析时,需通过分析动作在不同受力方向下的剪应力,来完成旋转动作下人体能量转换数值分析。但传统方法只能得到腰椎各节段的重力矩、水平剪应力的变化趋势,对各剪切力计算精度差,导致能量转换数值分析不准确。提出基于有限元分析的太极拳旋转时人体能量转换数值模型。根据人体测量学指标确定太极拳旋转时人体各部位比例、质心变化位置、重量比例,利用Ansys软件对模型进行有限元网格划分,得到动作模型的剩余应力分量,计算出太极拳转腰动作形成的旋转动量,根据给出动量与对方碰撞瞬时的冲量,得到太极拳旋转时人体在竖直方向上的释放能量,以此为依据完成对太极拳旋转时人体能量数值分析。仿真结果表明,所提模型进行太极拳旋转时人体能量数值分析精度较高,且鲁棒性较强。
[Abstract]:In Taijiquan, the momentum of relative movement of limbs can be calculated by studying the energy transformation of human body caused by rotation.In order to complete the numerical analysis of human body energy conversion under rotating action, the shear stress of action in different directions should be analyzed in order to carry out numerical analysis.But the traditional method can only get the weight moment of each segment of lumbar vertebrae and the change trend of horizontal shear stress. The accuracy of calculating each shear force is poor, which leads to the inaccuracy of numerical analysis of energy conversion.Based on finite element analysis, a numerical model of human body energy conversion during Taijiquan rotation is proposed.According to the anthropometric indexes, the proportion of different parts of body, the changing position of center of mass and the proportion of weight in the rotation of Taijiquan are determined. The finite element mesh is used to divide the model by using Ansys software, and the residual stress component of the action model is obtained.The rotational momentum formed by the turning waist movement of Taijiquan is calculated. According to the instantaneous impulse of the impact between the given quantity and the other side, the energy released by the human body in the vertical direction when the Taijiquan rotates is obtained.Based on this, the numerical analysis of human body energy during the rotation of Taijiquan is completed.The simulation results show that the proposed model has high accuracy and robustness when the body energy is rotated.
【作者单位】：郑州大学西亚斯体育学院;
【分类号】：G852.11;TP391.9

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