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Proceedings Paper

Vibration control of an active mirror pointing system
Author(s): Joseph C. Su; Chien Y. Huang; Fred Austin; Gareth J. Knowles
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Paper Abstract

An active vibration control experiment for precision mirror pointing using smart structure is described. The setup consists of a flexible plate clamped to the shaft of an electric motor. Part of the plate is polished to reflect a laser beam whose direction accuracy is the performance criterion. Electroceramic actuators and sensors are incorporated into the plate to control vibration. The analytical model is generated using the ANSYS program. Six flexible modes are kept to investigate the interaction between the rigid and the flexible modes. Three different control strategies were examined. The goal is to suppress the first and the second mode with very little spillover effects from other modes. Simulation results show that the performance objectives can be met. These analytical studies are verified in actual experiments in the near future.

Paper Details

Date Published: 8 September 1993
PDF: 12 pages
Proc. SPIE 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems, (8 September 1993); doi: 10.1117/12.152781
Show Author Affiliations
Joseph C. Su, Grumman Corporate Research Ctr. (United States)
Chien Y. Huang, Grumman Corporate Research Ctr. (United States)
Fred Austin, Grumman Corporate Research Ctr. (United States)
Gareth J. Knowles, Grumman Corporate Research Ctr. (United States)


Published in SPIE Proceedings Vol. 1917:
Smart Structures and Materials 1993: Smart Structures and Intelligent Systems
Nesbitt W. Hagood; Gareth J. Knowles, Editor(s)

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