Vibration control of a flexible structure using a hybrid mount |
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Authors: | Seung-Hwan Kim Seung-Bok Choi Sung-Ryong Hong M.-S.Moon-Sik Han |
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Affiliation: | a Smart Structures and Systems Laboratory, Department of Mechanical Engineering, Inha University, Incheon 402-751, South Korea;b Faculty of Mechanical and Automotive Engineering, Keimyung University, Daegu 704-701, South Korea |
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Abstract: | This paper presents vibration control of a flexible beam structure using a hybrid mount which consists of elastic rubber and piezoelectric stack actuator. After identifying stiffness and damping properties of the rubber and piezoelectric elements, a mechanical model of the hybrid mount is established. The mount model is then incorporated with the beam structure, and the governing equation of motion is obtained in a state space. A sliding mode controller is designed in order to actively attenuate the vibration of the beam structure subjected to high-frequency and small magnitude excitations. The controller is experimentally realized and measured control responses such as acceleration of the beam structure and force transmission through the hybrid mount are evaluated and presented in both frequency and time domains. |
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Keywords: | Hybrid mount Rubber Piezoactuator Piezoelectric stack Vibration control Sliding mode controller |
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