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http://dx.doi.org/10.5050/KSNVE.2013.23.12.1066

Dynamic Characteristics Modification of Damaged Composite Structure Using MFC and Active Control Algorithm  

Sohn, Jung Woo (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Kim, Heung Soo (Department of Mechanical, Robotics and Energy Engineering, Dongguk University-Seoul)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.23, no.12, 2013 , pp. 1066-1072 More about this Journal
Abstract
In this work, active control algorithm is adopted to reduce delamination effects of the damaged composite structure and control performance with MFC actuator is numerically evaluated. Finite element model for the damaged composite structure with piezoelectric actuator is established based on improved layerwise theory. In order to achieve high control performance, MFC actuator, which has increased actuating force, is considered as a piezoelectric actuator. Mode shapes and corresponding natural frequencies for the damaged smart composite structure are studied. After design and implementation of active controller, dynamic characteristics of the damaged smart composite structure are investigated.
Keywords
Active Control; Laminated Composite; Delamination; Piezoelectric Actuator; Macro-fiber Composite Actuator;
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Times Cited By KSCI : 2  (Citation Analysis)
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