DESIGN OPTIMIZATION OF AN ELECTROSTATIC MICROMOTOR WITH AXIAL FIELD

P.Di Barba1, A.Savini1, S.Wiak2
1Department of Electrical Engineering, University of Pavia, I 27100 Pavia, Italy
2IMET — Technical University of Lodz, 90–924 Lodz, Poland

Tóm tắt

Historically, the idea of using electrostatic phenomena to produce motion has long stimulated the activity of scientists. Although the power generated by electrostatic motors is modest, the absence of windings and ferromagnetic material makes this kind of device competitive for applications characterized by low levels of torque and reduced volumes. During last years a renewed attention appeared towards electrostatic devices in the microscopic scale; their fabrication has been possible thanks to the technology for Si‐integrated‐circuits. In particular, electrostatic micromotors have an increasing role as position actuators when submillimetric movements are required. Methodologies of numerical simulation applied to microdevices are a helpful tool for the designer, who should fulfil criteria often in mutual clash like electromechanical response and fabrication cost. More generally, procedures of automated optimal design are now available, tackling the design problem as the constrained minimization of an objective function suitably set up.

Từ khóa


Tài liệu tham khảo

Hanitsch R., 1994, Proceedings of ICEM'94, 20

Di Barba, P., Savini, A. and Wiak, S., 3-D computer-aided analysis of an electrostatic micromotor, ibidem, pp.111-115.

10.1016/0924-4247(91)87057-A

Di Barba P., 1993, International Journal ofApplied Electromagnetics in Materials, 4, 93