Study On The Friction Measurement Method Of Special Athletic Shoes

Purpose:In this study, in order to get the friction characteristics of the data under different forms of exercise, laboratory human motion simulation that people wear jogging shoes to do different forms of movement on Kistler3D based on Biomechanics Principle. Combination of statistical principles to analyze the measured data consistency and stability. Application of test repeatability and reproducibility test and verify the comparative experiment to determine the feasibility of human motion simulation test to evaluate the sports shoes friction coefficient of outer soles.Test method:According to the characteristics of running to design sixteen different distance slipping model and different speed of running condition. This study bases on analyze the kinetic parameters measured by three-dimensional force platform system and the kinematic parameters obtained by motion capture system. The kinetic parameters are used as a calculation parameters of coefficient of friction and are used as an indicator to assess the friction between special athletic shoes and surface. The different distance slipping and different speed of running form was repeatedly measured for ten times。The results:Content through specific research and combined with the theory of measurement and test results of the statistical validation of data, concluded as follows:1. The faster the speed of gait action, the better the repeatability of the date, it is reliable to make the friction of coefficients as an indicator to assess friction properties between outsole of running shoes and the surface at of the speed of3m/s.2. The date that foot spacing control between20-30cm is stability at hole foot glide action. It is to usethatd ate of dynamic coefficient of friction as an indicator to assess friction between outsole of running shoes and the surface.3. Base on heel slipping action and the front part of sole slipping. The date that foot spacing control between20-30cm is stability, it is feasible to use maximum static coefficient of friction as an indicator to assess friction between the front of outsole of running shoes or the heel part of running shoes and the surface.4. Based on laboratory measurement of repeatability and reproducibility validation. Different subjects bring into different volatile data, the data of the same subjects as the carrier can be compared in laboratory tests.