實驗模態分析與聲音量測技術於鈦高爾夫球具之探討

Application of Experimental Modal Analysis and Sound Measurement Techniques to Characteristic Study of a Golf Club

王栢村(Bor-Tsuen Wang) ； 丁國基(Kuo-Chi Ting) ； 黃裕仁(Yu-Ren Huang) ； 陳詠升(Yung-Sheng Chen)

《機械技師學刊》 2卷1期 (2009/03) Pp. 1-7

https://doi.org/10.6208/JPME-2009-01-01

摘要

本文乃應用實驗模態分析與聲音量測技術對鈦高爾夫球具進行分析。分別對高爾夫球頭與高爾夫球具於自由邊界下使用鋼質與高爾夫球兩種衝擊鎚為激振器再以加速度計、麥克風進行振動與聲音訊號量測，並對高爾夫球頭與高爾夫球具振動特性進行比較，同時也應用聲音量測技術至室外量測實際擊球聲音，以掌握實際擊球之聲音特性，同時也對球具於不同環境下聲音頻譜之探討。結果得知高爾夫球頭與高爾夫球具振動特性相似，且擊球聲音峰値頻率與振動模態有重大之關連性，其中以高爾夫球衝擊鎚敲擊所得到之聲音頻譜與室外擊球有一致趨勢。本文所發展之振動與聲音量測技術可用於爾後不同球具分析，而此鈦球具之分析結果更可作為爾後高爾夫球頭設計之參考價值。

關鍵字

實驗模態分析 ； 聲音量測

並列摘要

This work applies experimental modal analysis (EMA) and sound measurement techniques to study the sound and vibration characteristics of the golf club made by the titanium club head and fiber-reinforced plastic shaft. The club head and golf club are tested in free boundary conditions. The structures are excited by the impact hammer and measured by the accelerometer and microphone, respectively, to perform vibration and sound measurement. Both the characteristics of the club head and golf club are compared. The outdoor sound measurement for the golf club in practical swing is also carried out to understand the impact sound of the golf club. Results show that the vibration properties are similar between the club head and golf club. The peak frequencies of the golf club impact sound are strongly correlated to the vibration modes. In particular, the golf ball induced sound spectrum in the laboratory reveals the same tendency as that in the outdoor test. This work develops the sound and vibration measurement techniques to study the golf club characteristics and can be adopted for others as well. The present study will be beneficial to the design of the golf club.

並列關鍵字

experimental modal analysis EMA ； sound measurement