Hybrid adaptive control of intelligent structures with simultaneous precision positioning and vibration suppression

Kougen Ma; Saeid Pourjalali; Mehrdad N. Ghasemi-Nejhad

doi:10.1117/12.475213

10 July 2002 Hybrid adaptive control of intelligent structures with simultaneous precision positioning and vibration suppression

Kougen Ma, Saeid Pourjalali, Mehrdad N. Ghasemi-Nejhad

Author Affiliations +

Proceedings Volume 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control; (2002) https://doi.org/10.1117/12.475213
Event: SPIE's 9th Annual International Symposium on Smart Structures and Materials, 2002, San Diego, California, United States

Abstract

This paper focuses on the dynamic analysis, simultaneous precision positioning and vibration suppression, and experiments of Active Composite Panels (ACPs). First, the dynamics of a panel with two surface-mounted PZT patches is analyzed and measured by the finite element method and experiments. A hybrid adaptive control scheme is then proposed to achieve precision positioning and vibration suppression simultaneously. The control scheme takes advantage of two adaptive feed forward controllers and an adaptive feedback controller. The simulation results of the hybrid adaptive controller are compared with those of a PID controller, showing that it can provide better precision position and faster vibration suppression. The experimental results demonstrate that the relative precision can reach 98.5% of the required position in large vibration level, verifying that the hybrid adaptive control scheme is reliable and efficient.

Citation Download Citation

Kougen Ma, Saeid Pourjalali, and Mehrdad N. Ghasemi-Nejhad "Hybrid adaptive control of intelligent structures with simultaneous precision positioning and vibration suppression", Proc. SPIE 4693, Smart Structures and Materials 2002: Modeling, Signal Processing, and Control, (10 July 2002); https://doi.org/10.1117/12.475213

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