Active Control on Flow-Induced Vibration of the Head Gimbals Assembly in Hard Disk Drives

被引：3
作者：
Min, Hequn [1 ]
Huang, Xiaoyang [1 ]
Zhang, Qide [2 ]
机构：
[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
[2] ASTAR, Data Storage Inst, Singapore 117608, Singapore
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 06期
关键词：
Active control; flow-induced vibration; head gimbals assembly; pressure fluctuation; virtual sensing; FEEDBACK-CONTROL; FLUTTER;
D O I：
10.1109/TMAG.2013.2257702
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An active control method has been applied for the flow-induced vibration (FIV) of the head gimbals assembly (HGA) in working hard disk drives (HDDs) through suppressing the pressure fluctuations around the HGA. Firstly, the HGA off-track vibrations and the pressure fluctuations around the HGA are measured. The results show a high correspondence between the pressure fluctuations and the HGA off-track vibration. Secondly, a feedback control architecture, based on numerical simulations, is proposed for the FIV of the HGA by introducing virtual pressure sensors into the airflow regions around the HGA. The numerical results show that the FIV of the HGA can be successfully controlled when the pressure fluctuations are actively suppressed around the HGA. Finally, an experiment has been conducted to demonstrate the proposed feedback control method for the FIV of the HGA, in which the FIV on the HGA was detected by a laser Doppler vibrometer and used as the feedback error signals.
引用
收藏
页码：2653 / 2656
页数：4
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