Vibration Isolation System using Zero-power Magnetic Suspension with a Weight Suspension Mechanism
| Authors: | Mizuno Takeshi, Saitama University, Japan
Kishita Daisuke, Saitama University, Japan
Hoque Md. Emdadul, Saitama University, Bangladesh
Takasaki Masaya, Saitama University, Japan
Ishino Yuji, Saitama University, Japan |
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| Topic: | 4.2 Mechatronic Systems |
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| Session: | Vibration Control |
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| Keywords: | vibration isolation, magnetic suspension, magnetic bearings, active control, vibration, springs, accelerometers, mechanical systems, passive compensation, zero error |
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Abstract
Vibration isolation system using zero-power magnetic suspension is modified to be equipped with a weight support mechanism. The original system has a problem that the whole weight of the isolation table must be supported solely by the attractive force produced by permanent magnets. It is an obstacle to develop large isolation tables. In order to overcome this obstacle, a weight support mechanism is introduced in parallel with the serial connection of a zero-power magnetic suspension system and a normal spring. It can reduce the static load force that the zero-power magnetic suspension has to support. The basic characteristics of the modified system are shown analytically. Experimental study demonstrates that the modified system maintains infinite stiffness against direct disturbance even if such a weight support mechanism is added.
