Optimization of electrostatic side-drive micromotor torque using a new rotor-pole-shaping technique

Mohamed A. Basha; S. Safavi-Naeini

doi:10.1117/12.687698

19 October 2006 Optimization of electrostatic side-drive micromotor torque using a new rotor-pole-shaping technique

Mohamed A. Basha, S. Safavi-Naeini

Proceedings Volume 6374, Optomechatronic Actuators, Manipulation, and Systems Control; 63740C (2006) https://doi.org/10.1117/12.687698
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

In this paper we report a new design technique to optimize the driving torque of electrostatic side drive micromotors based on a new technique of rotor-poles-shaping. By reshaping the rotor pole from it regular pie shape, we can modify the distributions and directions of electric field in the gap between rotor and stator poles. Hence, the tangential electrostatic force component exerted on the rotor poles, responsible for driving torque, is maximized. A 2D parametric finite element model using ANSYS APDL programming language is developed for the optimization of the rotor pole shape. The finite element model uses a potential periodic boundary condition to simulate only one micromotor sector. Simulation results show an increase of the driving torque up to 48.75%.

Citation Download Citation

Mohamed A. Basha and S. Safavi-Naeini "Optimization of electrostatic side-drive micromotor torque using a new rotor-pole-shaping technique", Proc. SPIE 6374, Optomechatronic Actuators, Manipulation, and Systems Control, 63740C (19 October 2006); https://doi.org/10.1117/12.687698

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