SHOCK-RESPONSE-SPECTRUM ANALYSIS FOR ACOUSTIC NOISE OF A SEEKING CONTROL SYSTEM IN A HARD DISK DRIVE

Atsushi Okuyama; Tetsuya Hamaguchi; Keiko Watanabe; Takao Horiguchi; Kazuhisa Shishida; Yuji Nishimura

doi:10.1299/jsmeintmovic.6.1.320

The Proceedings of the International Conference on Motion and Vibration Control

Online ISSN : 2424-2977

6.1

DOI https://doi.org/10.1299/jsmeintmovic.6.1.320

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SHOCK-RESPONSE-SPECTRUM ANALYSIS FOR ACOUSTIC NOISE OF A SEEKING CONTROL SYSTEM IN A HARD DISK DRIVE

Atsushi Okuyama, Tetsuya Hamaguchi, Keiko Watanabe, Takao Horiguchi, Kazuhisa Shishida, Yuji Nishimura

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CONFERENCE PROCEEDINGS FREE ACCESS

Pages 320-325

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Abstract

Shock-response-spectrum (SRS) analysis of a seeking current in a hard disk drive was used to predict acoustic noise frequencies. This analysis method can be used for optimizing the seeking current so that seeking noise is reduced. It was verified experimentally that the prediction accuracy is from -25% to +12% and seeking noise was reduced by about 4 dBA on average by optimizing the seeking current.

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