跳跃运动中男性胫骨应力损伤部位识别仿真

发布时间：2018-09-18 18:15

【摘要】：对跳跃运动中男性胫骨应力损伤部位进行有效识别,可以深入了解男性胫骨运动性损伤的发病机理。进行损伤识别时,应依据胫骨应力分布变量,建立男性胫骨应力分布有限元模型,但是传统方法通过CT扫描结合Simpleware医学建模完成损伤识别,但是无法计算实际跳跃运动下胫骨内部的应力值,损伤识别误差较大。提出一种基于差动力理论的跳跃运动中男性胫骨应力损伤部位识别方法。运用差动力理论计算出跳跃运动下男性胫骨应力分布变量,获得分布载荷作用下的载荷矩阵,在ANSYS有限元分析软件平台下,组建跳跃运动下男性胫骨应力分布有限元模型,计算出实际跳跃运动下男性胫骨骨骼密度弹性模量,胫骨远端部位及骨密度变化值、胫骨关节外侧肌力和胫骨骨内斜肌肌力失效的应力值,以计算的结果为依据组建跳跃运动中男性胫骨应力损伤部位识别模型,采用内嵌于Sold-Works之上的DDM仿真软件模拟跳跃运动全过程对建立的模型进行验证,仿真结果表明,利用跳跃运动中男性胫骨应力损伤部位识别结果与实验计算的男性胫骨应力损伤分布分析结果基本一致。
[Abstract]:In order to understand the pathogenesis of male tibial exercise injury, we can identify the position of male tibial stress injury effectively. The finite element model of male tibial stress distribution should be established according to the stress distribution variables of tibia, but the traditional method is based on CT scanning and Simpleware medical modeling to complete the damage identification. However, it is impossible to calculate the internal stress of tibia under actual jump motion, and the error of damage identification is large. A method based on differential dynamic theory is proposed to identify the position of male tibial stress injury in jumping motion. The stress distribution variables of male tibia under jumping motion are calculated by using differential dynamic theory, and the load matrix under distributed load is obtained. The finite element model of male tibial stress distribution under jumping motion is established on the platform of ANSYS finite element analysis software. The elastic modulus of bone density of tibia, the changes of distal tibia and bone mineral density, the stress values of lateral tibial joint strength and the failure of tibial internal oblique muscle force were calculated under actual jumping exercise. Based on the results of the calculation, a model for identifying the position of male tibial stress injury in jumping motion is established. The model is verified by DDM simulation software embedded in Sold-Works. The simulation results show that the model can be used to simulate the whole process of the jump motion. The results of tibial stress injury identification in jumping exercise are in good agreement with the experimental results.
【作者单位】：周口师范学院体育学院;
【基金】：河南省科学技术厅科技计划项目(162102310585)
【分类号】：R873

【参考文献】