Active control of flow-induced vibrations inside hard disk drives

Active control of flow-induced vibrations inside hard disk drives

This paper presents a study on active control of the flow-induced vibrations (FIVs) on head gimbals assemblies (HGA) inside hard disk drives (HDDs), including analogue demonstrations and digital close-loop implementations. The results show that the feedback pressure fluctuations generated by a piezo...

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Bibliographic Details
Main Authors: Huang, Xiaoyang, Min, Hequn, Zhang, Qide
Other Authors: School of Mechanical and Aerospace Engineering
Format: Conference or Workshop Item
Language:English
Published: 2013
Subjects:
DRNTU::Engineering::Computer science and engineering::Hardware
Online Access:https://hdl.handle.net/10356/99734
http://hdl.handle.net/10220/17081
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Institution: Nanyang Technological University
Language: English
Description
Summary:This paper presents a study on active control of the flow-induced vibrations (FIVs) on head gimbals assemblies (HGA) inside hard disk drives (HDDs), including analogue demonstrations and digital close-loop implementations. The results show that the feedback pressure fluctuations generated by a piezoelectric disk inside the HDD can effectively suppress the FIVs on the HGA. The disk and HGA vibration modes inside the working HDD are also presented to understand the possible mechanism in current control.

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