ACTUATOR 2014 Manuscript B6.1

Author: Hubert Borgmann
Pages: 4
Language: English
Publication date: 09/04/2015
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Manuscript B6.1 published in Conference Proceedings ACTUATOR 2014
Development of Spherical Ultrasonic Motor for Space

S. Toyama*, T. Oohashi**, N. Fukaya***
*Tokyo A&T University Koganei, Japan,
** Kisarazu National College of Technology, Kisarazu, Japan,
***Tokyo Metropolitan College of Industrial Technology, Arakawaku, Japan,

In resent years, due to advances in science technology, space satellites have made progress. So, the presence of space debris has become problem in the world because they may collide each other. In our study, we have developed Spherical Ultrasonic Motor (SUSM) for space use with 3 Degree of Freedom (DOF) to drive the satellite thruster and resolve it. We aim that the satellites enter the atmosphere when the satellites reached the end of life, and SUSM controls thrusters when they inject for the directional control. We have made experiments of measuring torque, durability and lifetime. It shows that the torque and lifetime meets target value. But durability does not meet target value. To solve it, we have applied stator lining materials and shifted frequency
with 0.4 kHz from resonant frequency and we have shown that it meets durability-required specifications successfully.
El vendedor asume toda la responsabilidad de esta entrada.
Hubert Borgmann, MESSE BREMEN,
Project Manager ACTUATOR, International Conference and Exhibition on New Actuators and Drive Systems, Bremen, Germany, and Editor of the ACTUATOR Conference Proceedings (
Project Manager ITHEC, International Conference and Exhibition on Thermoplastic Composites, Bremen, Germany, and Editor of the ITHEC Conference Proceedings (

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