頁籤選單縮合
題名 | Design of In-situ Vibration and Shape Controller on Smart Structures |
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作者姓名(外文) | Yang, S. M.; Liu, Y. C.; Liu, K. C.; | 書刊名 | Journal of Aeronautics, Astronautics and Aviation. Series A |
卷期 | 38:2 民95.06 |
頁次 | 頁125-130 |
分類號 | 447.55 |
關鍵詞 | Smart structure; Piezoelectric sensor; Piezoelectric actuator; Vibration suppression; Shape control; |
語文 | 英文(English) |
英文摘要 | The stringent design requirement of aerospace system has called for the need of smart structures-systems with built-in sensor and actuator that can actively change their physical geometry and property to adapt to operating condition. 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 and tested. A controller driven by one 9VDC battery is developed as power supply, wave-form synthesizer, and power amplifier. It is shown experimentally that the smart structure of integrated sensor, actuator, and controller is effective to vibration control and shape control. |
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