A New Motor of Stick Type with Coupled Mechanical Vibration of Bimorph Beam and Frictional Force


This paper proposes a new non-magnetic motor with a rotor rotated by using the resonance energy of a bimorph cantilever beam excited by electrostatic force. The use of flexible material enables conversion of translational vibration to rotary movement in one direction. Basic characteristics of a prototype motor with two bimorph cantilever beams, such as rotational speed, output torque, and efficiency were determined experimentally. Results show that a maximum rotational speed of 2800 rpm was obtained without a load torque. It is also observed that this motor produces the output torque of 98 μNm when the rotational speed was 980 rpm. The maximum efficiency was 24% when the input power was 0.065 W.

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Yaguchi, H. (2015) A New Motor of Stick Type with Coupled Mechanical Vibration of Bimorph Beam and Frictional Force. Engineering, 7, 446-454. doi: 10.4236/eng.2015.77040.

Conflicts of Interest

The authors declare no conflicts of interest.


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