應用智慧型結構於減振與定位控制

Vibration Suppression and Shape Control of Smart Structures

邱俊煒(C. W. Chiu) ； 黃培榮(P. Z. Huang) ； 楊世銘(S. M. Yang)

《中華民國振動與噪音工程學會論文集》 1998 (1998/05) Pp. 67-73

https://doi.org/10.30028/CSSVANNUAL.199805.0067

摘要

智慧型結構是指內含有感測器及致動器，且具運算或控制能力之結構，因此可藉由內部之控制器而主動地改變結構系統的幾何外形及物理性質以適應不同的工作環境。本文提出一個以壓電材料為感測器和致動器的智慧型結構設計並自製三組直流電源整合電路；經由一片表面貼有壓電感測器與致動器的鋁樑，和另一片埋有壓電感測器與致動器的複合材料樑之製造、分析與測試，利用市售的9伏特乾電池驅動控制電路，以實驗顯示此整合感測器、致動器與控制器的智慧型結構設計，將可應用於衛星系統中(l)展開機構之起振控制、(2)姿態控制系統之減振控制，以及(3)天線和雷達的定位控制等。

並列摘要

Smart structures are structures with built-in sensors/actuators that can actively change their geometry and/or physical properties to adapt to the working environment. This paper presents a smart structure design with built-in piezoelectric sensor/actuator and controller for dither excitation, vibration suppression, and shape control. Two smart structure specimens, an aluminum beam with surface bonded piezoelectric sensor/actuator and a glass fiber composite laminated beam with embedded piezoelectric sensor/actuator, are fabricated, analyzed, and tested. Three control circuits driven by 9VDC battery arc also developed in lieu of the power supply, wave form synthesizer, and power amplifier used in laboratory. It is shown experimentally that the smart structures of integrated sensor, actuator, and controller arc effective in dither excitation, vibration suppression, and shape control.