An Engineering Research on the Unbending -along-the-Swing-Plane Function of a Golf Club Shaft

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  • ゴルフクラブシャフトのしなり戻り機能についての工学的研究
  • ゴルフクラブシャフト ノ シ ナリ モドリ キノウ ニ ツイテ ノ コウガクテキ ケンキュウ

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In recent years, as a result of remarkable improvement and development of golf gears, the environment which surrounds golf has changed a lot. One of the desires which a golfer is always anxious to fill is to fly a ball farther and more correctly. And the engineering progress about the materials of golf club shafts has filled this desire by leaps and bounds. The point of swinging a golf club is how to give a big speed to the club head at the time of impact, and the speed is determined by the physical strength and skills of a golfer and the dynamic characteristics of the club used. This report is a record of the observations carried out, with a focus on the difference in the structures of carbon shafts, on the characteristics of unbending that are essential to the shafts. The experiments on the movements of frequency and the half-life period of attenuation by using a strain gauge showed that a shaft made of carbon fiber sheet. It can be said that development and progress of the function of a shaft continue to be a big concern in connection with golf playing.

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