A-22 ローラ式バドミントンマシンの試作研究(テニス・バドミントン2)

概要

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Badminton is one of the more popular sports in China, Japan etc. The shuttlecocks used in badminton are one of two kinds, either of a feather or synthetic shuttlecock. In an actual badminton match, the feather shuttlecock is always used. Several characteristics of the shuttlecock are its light mass, which is strongly influenced by air resistance and that the wing of the skirt can be easily broken. Also, the highest initial velocity of the shuttlecock exceeds 300km/hr for a professional badminton player. This paper describes the badminton machine with the rollers developed by the author. Finite element models of a feather shuttlecock and the badminton machine with two rollers are made, and the throw simulations proceed with the moving behavior and contact stress of the shuttlecock using commercial dynamic finite element analysis code (ANSYS/LS-DYNA). The friction coefficient is examined from the surfaces in contact with the shuttlecock and the roller in the analysis. Also, the three types of roller edges are analyzed. From the analytical results, it is found that the convex type of roller attains a higher accuracy than the other rollers for every throw. Additionally, these analytical results are inspected by the throw experiments using the badminton machine.
2009-12-02