2.5" Hard Disk Drive (HDD) has been used widely in many consumer electronic devices such as laptop computer. It consists of a spindle motor, a voice coil motor and other mechanical components enclosed in a small aluminum mechanical casing. It is very challenging to perform noise control
for such a small complex system. Convention approach of using frequency analysis is not sufficient to identify the noise source from the HDD. In this paper, we demonstrate a way to determine the noise source for 2.5" HDD using field measurement of the HDD to locate the noise source with near
field microphone array and ANSYS software to compute the components that have the largest contribution to the sound.
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Document Type: Research Article
Seagate Singapore Design Center, Singapore; Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
December 7, 2017
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