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Evaluating 2.5” Hard Disk Drive Noise Source Identification

Lookup NU author(s): Yichao Ma, Professor Cheng Chin, Dr Wai Lok Woo


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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.

Publication metadata

Author(s): Ma YC, Chin CS, Woo WL

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 46th INTER-NOISE Conference

Year of Conference: 2017

Pages: 1-6

Online publication date: 27/08/2017

Acceptance date: 01/06/2017

Publisher: Hong Kong Institute of Acoustics and the Hong Kong Polytechnic University