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Scale effects and thermal considerations for micro-actuators

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3 Author(s)
J. Peirs ; Dept. of Mech. Eng., Katholieke Univ., Leuven, Belgium ; D. Reynaerts ; H. Van Brussel

This paper analyses scale effects for actuator types which are strong candidates for micro-actuation: shape memory alloys (SMAs), electrostatic, electromagnetic and piezoelectric actuators. SMA actuators are studied in detail and compared to the other actuator types on a basis of force, response time, and power density. Much of the analysis is based on thermal aspects and scaling effects on both convective and conductive heat transfer, which is a quite novel approach. Results of this thermal analysis are effects on surface temperature and maximum current density of microactuators

Published in:

Robotics and Automation, 1998. Proceedings. 1998 IEEE International Conference on  (Volume:2 )

Date of Conference:

16-20 May 1998