A new ultrasonic motor using electro-rheological fluid and torsional vibration

被引:19
作者
Nakamura, K [1 ]
Maruyama, M [1 ]
Ueha, S [1 ]
机构
[1] TOKYO INST TECHNOL, PRECIS & INTELLIGENCE LAB, MIDORI KU, YOKOHAMA, KANAGAWA 226, JAPAN
关键词
ultrasonic motor; electro-rheological fluid; torsional vibration;
D O I
10.1016/0041-624X(96)00019-4
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
In this paper, the function of one of the vibration components in an ultrasonic motor is substituted by an electro-rheological fluid (ERF) whose viscosity can be widely controlled by the electric field. The proposed motor is composed of a torsional vibrator and a rotor. The gap between them is filled with ERF. The torsional vibration is converted into the rotor revolution by switching the voltage across the gap synchronously to the torsional vibration. This paper presents a trial construction of the motor and the experimental evaluation of the basic characteristics. In addition, the optimum point of operation is discussed by using an equivalent circuit model.
引用
收藏
页码:261 / 264
页数:4
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