| Summary: | 碩士 === 國立高雄應用科技大學 === 模具工程系碩士班 === 93 === This research applies experimental modal testing with frequency spectrum analyzer to investigate and analyse the sound characteristics on the golf club head. Experimental measurements and actual striking measurements are taken from iron clubs of two different materials and three distinct types of wooden clubs. The experimental measurement are conducted not only for the collection of sound spectra for both iron and wooden clubs via experimental modal testing but also the discussion focused on discrepancies of the sound characteristic after assembling the club. The actual striking measurements use a robotic arm to clamp the golf clubs for striking a ball in order to obtain the sound spectra. The measurements are then compared with the experimental ones.
The experimental results show that the sound characteristics of the wooden type before and after assembling the club have slight variations, whereas those of the iron type exhibit extensive alterations. The affected frequency range of the iron type before assembling the club lies between 3000 and 10000 Hz, while a reduction to less than 2000 Hz is observed after the assembly club. The actual striking measurements show that major frequencies of the wooden type are increased by 100 to 300 Hz. However, the frequency increase only has little influence on the human sense of hearing. For iron clubs, the affected frequencies occur below 4000 Hz but no significant major frequencies appear on this type.
The established experimental approaches and the analyzed results given in this research could be used to help designers in reducing the time of product development in the golf industry.
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