Dynamic Model of a Badminton Stroke (P254)

Abstract

The purpose of this paper is to contribute to the understanding of dynamic racket behaviour in badminton. The paper describes the development of a dynamic model of a badminton stroke based on experimental data. Motion capture and strain gauge experiments are performed to clarify the movement and accelerations of a badminton smash stroke. Subsequent data processing reveals that due to the speed and acceleration of the movement, neither of the two methods provides the complete picture of the racket's dynamic behaviour, but computational processing of the combination of experimental data together with physical modelling of the racket mechanics allows for an understanding of the basic mecha-nisms underlying racket movement and deformation. The paper concludes that the elastic deflection of the racket creates a narrow window of opportunity during which the impact is enhanced by the racket's elastic behaviour, and this window must be closely synchronized with the timing of the stroke. Although badminton racket technology has advanced considerably, the relationship between design and response is still rather poorly understood. A review of the literature turns up very little on badminton rackets, whereas design of tennis rackets has been studied quite extensively (Brody 1995, Cross 1999, Lees 2003). Some tennis studies could be applicable to badminton as well as other racket sports in general, but given the distinct styles of play, the design goals of a tennis racket and a badminton racket are probably quite different.