| 犁式滑雪转弯膝关节软骨有限元分析 |
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| 引用本文： | 付彦铭,于天彪,王新,王宛山.犁式滑雪转弯膝关节软骨有限元分析[J].东北大学学报(自然科学版),2017,38(10):1431-1435. |
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| 作者姓名： | 付彦铭 于天彪 王新 王宛山 |
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| 作者单位： | (1. 东北大学 机械工程与自动化学院， 辽宁 沈阳110819; 2. 沈阳体育学院 运动人体科学学院， 辽宁 沈阳110102) |
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| 基金项目： | 辽宁省教育厅科学研究一般项目(L2015504)； 沈阳市科技计划项目(F15-153-1-00)；沈阳体育学院重点资助项目(XKFX1503)；沈阳体育学院校级课题(2016KY08). |
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| 摘 要： | 随机挑选200名实验对象,记录他们的基本信息、关节角度和滑行速度,对其中181个有效数据进行分析.根据1名志愿者的MR,CT数据建立了膝关节140°软骨与骨的三维模型.根据运动学分析结果和膝关节解剖学结构定义载荷及约束,在Abaqus 6.14中得出转弯膝软骨应力集中出现的位置.研究结果表明:体重过大、速度过快时应适当增大转弯半径以减少向心力对膝关节软骨施加的应力;犁式转弯的过弯速度应控制在3 m/s之内.
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| 关 键 词： | 膝关节软骨 有限元分析 犁式滑雪 转弯侧膝关节 生物力学 |
Finite Element Analysis of Knee Joint Cartilage at Turning of Plough Type Ski |
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| FU Yan-ming,YU Tian-biao,WANG Xin,WANG Wan-shan.Finite Element Analysis of Knee Joint Cartilage at Turning of Plough Type Ski[J].Journal of Northeastern University(Natural Science),2017,38(10):1431-1435. |
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| Authors: | FU Yan-ming YU Tian-biao WANG Xin WANG Wan-shan |
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| Institution: | 1. School of Mechanical Engineering & Automation， Northeastern University， Shenyang 110819， China; 2. School of Human Movement Science， Shenyang Sport University， Shenyang 110102， China. |
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| Abstract: | Two hundred subjects were randomly selected to record their basic information， joint angle and sliding speed， and 181 valid data were analyzed. According to a volunteer′s MR， CT data， a 3D cartilage and bone model of the knee 140° was established. According to the result of kinematic analysis and knee anatomy structure， the load and constraints were defined. The stress concentration position on the knee cartilage was obtained in the Abaqus6.14. The results showed that the slider with large weight or sliding too fast should increase the turning radius in order to reduce the stress of the centripetal force on knee joint cartilage. It is advisable to control the speed of plough type turn within 3m/s. |
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| Keywords: | knee joint cartilage finite element analysis plough type ski turning side of knee joint biomechanics |
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