Active vibration control of a space truss using a lead zirconate titanate stack actuator

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Active vibration control of a space truss using a lead zirconate titanate stack actuator

Active vibration control of a space truss using a lead zirconate titanate stack actuator

Song, G / Vlattas, J / Johnson, S E / Agrawal, B N

This paper presents design, implementation and experimental results of active vibration control of Naval Postgraduate School (NPS) space truss using a piezoelectric ceramic stack actuator. The NPS space truss represents a flexible spacecraft structure that may support interferometer, antenna and other vibration-sensitive instrumentation. To simulate the effects of a spacecraft disturbance on the truss, a proof mass actuator is incorporated on the structure to excite the truss. To reduce the vibrations caused by the proof mass actuator, an active strut member is installed along a diagonal of the base bay of the truss. The active strut element consists of a piezoelectric ceramic actuator stack, a force transducer and mechanical interfaces. An integral plus double-integral force controller is designed to suppress vibration of the truss. Experimental results demonstrate that the active piezoceramic strut actuator can effectively reduce truss vibration.

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Title :

Active vibration control of a space truss using a lead zirconate titanate stack actuator

Contributors:

Song, G (author) / Vlattas, J (author) / Johnson, S E (author) / Agrawal, B N (author)

Published in:

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering ; 215 , 6 ; 355-361

Publication date :

2001-06-01

Size :

7 pages

ISSN :

0954-4100 , 2041-3025

DOI :

https://doi.org/10.1243/0954410011533356

Type of media :

Article (Journal)

Type of material :

Electronic Resource

Language :

English

Keywords :

flexible spacecraft , space truss , piezoceramic material , active vibration control

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