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| Vibration transmission control of vibration source in a cylindrical shell based on piezoelectric actuator |
| HE Peitao1,2, WANG Shuangli1,2, GENG Xiaoming3, XIE Xiling1,2, ZHANG Zhiyi1,2 |
| 1. State Key Lab of Mechanical Systems and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China;
2. Institute of Vibration, Shock & Noise, Shanghai Jiao Tong University, Shanghai 200240, China;
3. The 705th Research Institute, China State Shipbuilding Co., Ltd., Xi’an 710077, China |
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Abstract To attenuate vibration transmission along the annular support in a compact shell, an active/passive vibration isolation support with piezoelectric actuators is proposed. The analysis of vibration control is carried out on the basis of the dynamic model of the vibration source-active/passive support-cylindrical shell system. The cylindrical shell is modeled by the Flugge shell theory and the wave propagation method. The vibration source, active/passive support, etc. are modeled by the finite element method. The coupled model is established on the frequency response functions of the subsystems. Based on the coupled model and ideal control assumption, the feasibility of active vibration control is investigated in the frequency domain. A vibration source-active/passive support-cylindrical shell experimental systemis constructed to verify the effectiveness of the control method. Simulation and experimental results show that the active/passive support vibration isolation support with piezoelectric actuators can significantly attenuate wide-band and line spectrum vibration of the shell.
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Received: 09 January 2023
Published: 15 January 2024
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