Feasibility Study of Reduction in Sound-Pressure-Induced Vibration in Hard Disk Drives Using Adaptive Feed-Forward Control

被引：0

作者：

Koganezawa, Shinji ^{[1
]}

Funai, Kensei ^{[2
]}

Tani, Hiroshi ^{[1
]}

Lu, Renguo ^{[1
]}

Kawada, Shouhei ^{[1
]}

机构：

[1] Kansai Univ, Dept Mech Engn, Suita, Osaka 5648680, Japan

[2] Kansai Univ, Grad Sch Sci & Engn, Suita, Osaka 5648680, Japan

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2023年 / 59卷 / 11期

关键词：

Adaptive control; feed-forward control; hard disk drives (HDDs); position control; sound-pressure-induced vibration;

D O I：

10.1109/TMAG.2023.3289852

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：

In recent years, sound-pressure-induced positioning errors have become a critical issue in hard disk drives (HDDs) for data centers. As these positioning errors often contain components with frequencies higher than the servo bandwidth, we conducted a feasibility study of adaptive feed-forward (AFF) control to suppress the vibrations. By placing a sensor to detect the vibration on the pivot shaft, the correlation between the sensor signal and head vibration was obtained. The HDD with AFF control applied is assumed to have a dual-stage actuator system, where the secondary actuator (SA) compensates for the sound-pressure-induced positioning errors. Simulation results confirmed that the proposed control effectively suppressed the sound-pressure-induced vibrations.

引用

页数：5

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