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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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© 2017 Institute of Noise Control Engineering. All Rights Reserved. 2.5” Hard Disk Drive (HDD) has been used widely in many consumer electronic devices including laptop computers. A 2.5” HDD consists of a spindle motor, a voice coil motor, and other mechanical components, which are enclosed in a small aluminum mechanical casing. Performing noise control on such a small complex system has been a challenge. The conventional approach of using frequency analysis is not sufficient to identify the noise source from the HDD. In this paper, an approach is proposed to determine the noise source for 2.5” HDD using near field microphone array of the HDD to locate the noise source. Finite-element software, ANSYS software is used to compute the components that have the largest contribution to the noise.

Publication metadata

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

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: INTER-NOISE 2017 - 46th International Congress and Exposition on Noise Control Engineering: Taming Noise and Moving Quiet

Year of Conference: 2017

Acceptance date: 02/04/2016

Publisher: Institute of Noise Control Engineering