摘要
至今运动生物力学仍用质点或刚体力学规律解析侧面观测地短跑运动,不能解释短跑测试图线中多个冲量值间存在公约数等现象。深究短跑测试图线的特征,发现短跑的生物特性主要表现为弹性运动。于是短跑前支撑的平面运动可视为三维运动;后支撑的平面运动可视为四维运动。利用多维系统功能关系、冲量关系,给出短跑运动与弹性、复式蹬伸、自由刚体等模型相关的多种力学微元,分解复杂短跑运动,量化生物特性,突破目前用质点、刚体力学规律解析短跑运动的思维模式。初步找到揭示短跑运动力学规律的方法。
Sports biomechanics still use particle or a rigid body mechanics law analytical side observation to sprint movement,can not explain sprint test figure line more impulse phenomenon such as common divisor between values.Dig into thecharacteristics of the sprint test line,found the creatures of the sprint main features mainly for elastic movement.Then sprintfront support planar motion can be considered as three dimensional motion;Support after the plane of the sport can beconsidered as four dimensional motion.Use of multidimensional system function relations,the relationship between impulse,give a sprint movement and elastic,double stretching,free rigid body model related to a variety of mechanical micro yuan,decompose complex sprint movement,quantitative biology,breakthrough with law of particles and rigid body mechanicsanalysis current sprint movement mode of thinking.Find a way to reveal sprint movement law of mechanics.
作者
董俊道
Dong Jundao(Science and engineering university applied sciences college in Harbin, Harbin Heilongjiang, 150080, China)
出处
《当代体育科技》
2017年第11期228-232,234,共6页
Contemporary Sports Technology
关键词
短跑力学模型
多维平面运动
多维系统的功能关系
复式蹬伸模型
Sprint mechanics model
Multidimensional planar motion
The function of the multidimensional system relationship
Double stretching in model