Author(s)

P. Gaudenzi, A. Meschini & A. Scipioni

Abstract

The design of a rotary ultrasonic motor for space applications is considered. First the working principle of such device is examined. The dynamics of the stator and the rotor is then studied by means of modelling approaches proposed in tW recent literature. A special attention is devoted to geometry of the piezoelectric actuating layers and the relevant electrodes pattern. A preliminary design and verification process is then set up based on general performance indices determined for particular space application!?. 1 Introduction New demanding objectives in terms of cost and performances of space systems have favoured the development of a new generatio

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