Journal of Sports Science and Medicine
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Journal of Sports Science and Medicine
ISSN: 1303 - 2968
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©Journal of Sports Science and Medicine (2009) 08, 657 - 662
Research article
A Study of Shuttlecock’s Trajectory in Badminton
Lung-Ming Chen1, Yi-Hsiang Pan2,, Yung-Jen Chen3

1 Department of Computer and Communication, Sue-Te University, Taiwan ROC
2 Graduate Institute of Physical Education, National Taiwan Sport University, Taiwan ROC
3 Taipei County Ell-Chorng Elementary School, Taipei County , Taiwan ROC

Yi-Hsiang Pan
✉ Graduate Institute of Physical Education, National Taiwan Sport University, 250, Wenhua 1 Rd., Kueishan, Taoyuan 333, Taiwan ROC.
Email: poterpan@seed.net.tw

Received:
17-11-2008 -- Accepted: 14-10-2009 --
Published (online): 01-12-2009

ABSTRACT

The main purpose of this study was to construct and validate a motion equation for the flight of the badminton and to find the relationship between the air resistance force and a shuttlecock’s speed. This research method was based on motion laws of aerodynamics. It applied aerodynamic theories to construct motion equation of a shuttlecock’s flying trajectory under the effects of gravitational force and air resistance force. The result showed that the motion equation of a shuttlecock’s flight trajectory could be constructed by determining the terminal velocity. The predicted shuttlecock trajectory fitted the measured data fairly well. The results also revealed that the drag force was proportional to the square of a shuttlecock velocity. Furthermore, the angle and strength of a stroke could influence trajectory. Finally, this study suggested that we could use a scientific approach to measure a shuttlecock’s velocity objectively when testing the quality of shuttlecocks. And could be used to replace the traditional subjective method of the Badminton World Federation based on players’ striking shuttlecocks, as well as applying research findings to improve professional knowledge of badminton player training.

Key words: Projectile motion, aerodynamics, badminton
Key Points
The motion equation of a shuttlecock’s flying trajectory could be constructed by determining the terminal velocity in aerodynamics.
Air drag force is proportional to the square of a shuttlecock velocity. Furthermore, the angle and strength of a stroke could influence trajectory.

 


  

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Lung-Ming Chen, Yi-Hsiang Pan, Yung-Jen Chen, (2009) A Study of Shuttlecock’s Trajectory in Badminton . Journal of Sports Science and Medicine (08), 657 - 662.

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