Vibration servo control design for mechanical resonant modes of a hard-disk-drive actuator

被引：35

作者：

Atsumi, T

Arisaka, T

Shimizu, T

Yamaguchi, T

机构：

[1] Hitachi Ltd, Storage Technol Res Ctr, Tsuchiura, Ibaraki 3000013, Japan

[2] Hitachi Global Storage Technol Inc, Adv Technol, Odawara, Kanagawa 2568510, Japan

来源：

JSME INTERNATIONAL JOURNAL SERIES C-MECHANICAL SYSTEMS MACHINE ELEMENTS AND MANUFACTURING | 2003年 / 46卷 / 03期

关键词：

motion control; positioning; hard disk drive; mechanical resonance; vibration control; servo control;

D O I：

10.1299/jsmec.46.819

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A design method that can suppress the vibration from high-order resonant modes in a head-positioning system of a hard disk drive was developed. This method uses the vector locus of an open-loop transfer function to design both the controller and the structure simultaneously. Application of the method to an actual hard disk drive showed that positioning accuracy under high-order resonant modes can be improved by 55%. In addition, when all resonances are in-phase, the developed method can suppress vibrations caused by all mechanical resonances. It is concluded that the method can design a control system with high robustness and high following-control performance.

引用

页码：819 / 827

页数：9