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Modeling and Vibration Control of Hull Structure Using Piezoelectric Composite Actuators  

Kim, Heung-Soo (대구가톨릭대학교 기계자동차공학부)
Sohn, Jung-Woo (인하대학교 기계공학과)
Choi, Seung-Bok (인하대학교 기계공학부)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.23, no.1, 2010 , pp. 9-15 More about this Journal
Abstract
In this paper, dynamic modeling of hull structure including surface-bonded piezoelectric composite actuator was developed and structural vibration control performance was evaluated. Cylindrical shell structure with end-caps was considered as a host structure which could be used as a simple model of fuselage of aircraft and underwater vehicles. An advanced piezoelectric composite, macro-fiber composite(MFC), which has been developed in NASA Langley Research Center was applied for the effective structural vibration control. MFC has great flexibility by using piezoceramic fiber sheet and enhanced piezoelectric effect for in-plane motion by utilizing interdigitated electrode. Governing Equations were derived from the finite element model and modal characteristics were investigated. Modal test was conducted to verify the finite element model. Optimal controller was designed and implemented for the evaluation of vibration control performance. Structural vibration was controlled effectively by applying proper control input to the piezoelectric actuators.
Keywords
hull structure; modal analysis; piezoelectric composite actuator; vibration control;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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