This paper presents a nonlinear compensation of zero-compliance system using zero-power magnetic suspension. Realization of negative stiffness by zero-power control is an integral part of vibration isolation system. Zero-compliance to direct disturbance is achieved by connecting a negative stiffness suspension in series with a normal positive stiffness spring. However, zero-power control system itself has inherently nonlinear characteristics and thus, makes the zero-compliance system nonlinear. In this paper, a nonlinear zero-power controller is designed and applied to vibration isolation system. The experimental results show that the proposed controller could effectively reduce the nonlinearity of the zero-power control, as well as vibration isolation system.
- Design Engineering Division and Computers and Information in Engineering Division
A Nonlinear Compensator for Zero-Power Control and Its Application to Vibration Isolation System
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Hoque, ME, Kamiya, T, & Mizuno, T. "A Nonlinear Compensator for Zero-Power Control and Its Application to Vibration Isolation System." Proceedings of the ASME 2005 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. Volume 4a: ASME/IEEE Conference on Mechatronic and Embedded Systems and Applications. Long Beach, California, USA. September 24–28, 2005. pp. 223-228. ASME. https://doi.org/10.1115/DETC2005-85175
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