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http://dx.doi.org/10.5050/KSNVE.2017.27.2.195

Active Vibration Control of Shell Structure Subjected to Internal Unbalanced Excitation  

Kim, Seung-Ki (Department of Mechanical Engineering, Dongguk University)
Jung, Woo-Jin (Agency for Defense Development)
Bae, Soo-Ryong (Agency for Defense Development)
Lee, Sang-Kyu (Agency for Defense Development)
Kwak, Moon K. (Department of Mechanical, Robotics and Energy Engineering, Dongguk University)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.27, no.2, 2017 , pp. 195-203 More about this Journal
Abstract
This paper is concerned with the active vibration control of shell structure that is subjected to internal unbalanced excitation by using active mounts and accelerometers. The unbalanced excitation is caused by a rotating unbalanced mass. The control algorithm considered in this study is the negative acceleration feedback (NAF) control. A simplified dynamic model was derived to verify the effectiveness of the NAF control. Four actuators and four accelerometers were mounted on the shell structure, so that the multiple-input and multiple-output (MIMO) NAF controller was designed by both centralized and decentralized ways. Numerical results show that both the decentralized and centralized NAF controllers are effective. Based on the numerical simulation, the proposed decentralized NAF controller was applied to the real shell structure. Experimental results show that the proposed decentralized NAF controller can effectively suppress vibrations of the shell structure.
Keywords
Active Vibration Control; Acceleration Feedback Control; Decentralized Control; Centralized Control; Collocated Control;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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