A design based on final-state control for residual vibrationless seeking in hard disk drives

被引：0
|
作者：
Atsushi Okuyama
Masahito Kobayashi
Takao Horiguchi
Kazuhisa Shishida
机构：
[1] Storage Technology Research Center,
[2] Hitachi,undefined
[3] Ltd.,undefined
[4] Hitachi Global Storage Technologies,undefined
[5] Ltd.,undefined
来源：
Microsystem Technologies | 2005年 / 11卷
关键词：
Hard disk drive; Seeking control; Residual vibration; Final state control;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A new design method - based on a final-state control (FSC) - for short-span seeking in a hard-disk drive (HDD) has been developed. The short-span seeking is performed by two-degree-of-freedom (2-DOF) control, which uses a feedforward (FF) control input along with a reference trajectory. The design method can directly generate the FF control input, whose derivative at a specified order is minimized and whose power spectrum amplitude is reduced at a specified frequency. The residual vibration caused by mechanical resonance can therefore be reduced by the generated FF control input. Test with a 2.5-in form-factor HDD experimentally confirmed that the developed seeking control significantly reduces the residual vibration in a HDD.
引用
收藏
页码：688 / 695
页数：7
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