Two-Dimensional Mathematical Model of Sports Surfaces with Angled Multi-Intensity Impact Tests

Proceedings

卷:2

Noriyuki Gyokusen¹  Shozo Kawamura¹  Harutoshi Yukawa² 

[1] Department of Mechanical Engineering, Toyohashi University of Technology, Toyohashi 441-8122, Japan;

[2] Faculty of Regional Policy, Aichi University, Toyohashi 441-8522, Japan;

关键词: sport surface;    angled multi-intensity impact test;    two-dimensional mathematical model;    shock attenuation;    parameter identification;   

DOI  :  10.3390/proceedings2060281

来源: DOAJ

【 摘 要 】

The purpose of this study is to propose a two-dimensional (2-D) mathematical model of sports surfaces for evaluating the shock attenuation and deformation properties in both the vertical and horizontal direction, especially in competitive track and field materials. We develop a 2-D impact test device that can control the initial impact angle and intensity with parallelogram linkage. Using this device, various intensity impacts with angles ranging from 5–25 degrees were performed on test specimen. A 2-D mathematical model for sports surfaces and parameter identification method is also proposed for evaluating such surfaces, especially for polyurethane competitive track and field materials. The model is constructed from vertical and horizontal elements, and the parameters for each element are identified separately. Finally, vertical and horizontal forces with various angles and intensities can be estimated with an identified parameter set.

【 授权许可】

Unknown