Vibration control of an active mirror pointing system

Joseph C. Su; Chien Y. Huang; Fred Austin; Gareth J. Knowles

doi:10.1117/12.152781

8 September 1993 Vibration control of an active mirror pointing system

Joseph C. Su, Chien Y. Huang, Fred Austin, Gareth J. Knowles

Proceedings Volume 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems; (1993) https://doi.org/10.1117/12.152781
Event: 1993 North American Conference on Smart Structures and Materials, 1993, Albuquerque, NM, United States

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.

Citation Download Citation

Joseph C. Su, Chien Y. Huang, Fred Austin, and Gareth J. Knowles "Vibration control of an active mirror pointing system", Proc. SPIE 1917, Smart Structures and Materials 1993: Smart Structures and Intelligent Systems, (8 September 1993); https://doi.org/10.1117/12.152781

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