NDLI: Integrated servo-mechanical control systems design using Nyquist plots for high-performance mechatronics

Content Provider	Springer Nature Link
Author	Pang, Chee Khiang Hong, Fan Wang, Xiaoyun
Copyright Year	2012
Abstract	In this paper, an integrated servo-mechanical control systems design method using Nyquist plots is proposed for high-performance mechatronic systems. The proposed technique is used to analyze stability, performance, and robustness of the control system, considering control and mechanical specifications under one unified framework. The desired stability and performance specifications such as gain and phase margins, infinity norm of sensitivity transfer function, mechanical characteristics, and robustness against plant uncertainties, etc., are transformed into disc regions in the developed technique. The proposed methodology is used to design and analyze a control system for a voice coil motor actuated hard disk drive (HDD) targeted to provide stronger disturbance rejection capabilities on the identified critical resonant mode at 9,146 Hz. The designed controller is implemented in a commercial HDD, and experimental results show that the disturbance at the frequency of critical resonant mode is attenuated by −7 dB for stronger vibration control.
Starting Page	1719
Ending Page	1729
Page Count	11
File Format	PDF
ISSN	09467076
Journal	Microsystem Technologies
Volume Number	18
Issue Number	9-10
e-ISSN	14321858
Language	English
Publisher	Springer-Verlag
Publisher Date	2012-07-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Disturbance rejection Integrated servo-mechanical Mechatronic systems Nyquist plot Resonant modes Mechanical Engineering Electronics and Microelectronics, Instrumentation Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Condensed Matter Physics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering Hardware and Architecture

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