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Electrostatic Suspension System Using Time Optimal Control  

Jeon, Jong-Up (울산대학교 기계자동차공학부)
Baik, Bong-Woo (울산대학교 대학원 기계자동차공학과)
Ngo, Hung Manh (울산대학교 대학원 기계자동차공학과)
Park, Kyu-Yeol (울산대학교 기계자동차공학부)
Publication Information
Journal of the Korean Society for Precision Engineering / v.25, no.3, 2008 , pp. 63-72 More about this Journal
Abstract
A new method for the electrostatic suspension of disk-shaped objects is proposed which is based on a time-optimal control scheme and deploys only high-voltage power supplies that can deliver dc voltages of positive and/or negative polarity. This method possesses the unique feature that no high-voltage amplifiers are needed which leads to a remarkable system simplification and objects can be suspended stably even in vacuum environment. Using this scheme, an aluminium disk used in a 3.5-inch HDD was suspended stably at an airgap of 0.3mm.
Keywords
Electrostatic suspension; Electrostatic force; Contactless support; Time optimal control;
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Times Cited By KSCI : 2  (Citation Analysis)
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