基于有限元法进行人体腓肠肌振动模型仿真研究

Simulation of Vibrational Model of the Gastrocnemius Based on the Finite Element Method

研究腓肠肌振动频谱分布规律,利用有限元软件ANSYS建立腓肠肌振动模型,计算腓肠肌提踵时振动的固有频率及振型,并使用专门的肌声检测系统测量10名大学男生负重提踵时的腓肠肌肌声信号。模拟结果显示,腓肠肌的振型随频率的增大存在一定的分布规律,实验测量表明振动的能量主要集中在超低频区。将模拟结果与实验数据进行对比分析,表明能量集中在超低频区的振型主要有4种。

In this paper,natural frequency and major shapes of the gastrocnemius at heel raised are calculated with the vibrational model of the gastrocnemius established by ANSYS.In addition,acoustic signal of the gastrocnemius at heel raised with heavy load of 10 male students are measured with specialized sound detection system.The result shows that the major shapes regulate to the increase of the natural frequency.Further more,the energy of the vibration observed in the experiment is largely concentrated in low-frequency.Comparing with these results,it indicates that the major shapes where the energy of the vibration is concentrated in super low-frequency mainly have four types.