Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)
- 2005.05a
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- Pages.192-195
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- 2005
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- 1598-2548(pISSN)
Active Vibration Control of Smart Hull Structures
지능형 Hull구조물의 능동 진동제어
- Published : 2005.05.01
Abstract
In this study, dynamic characteristics of an end-capped hull structure with surface bonded piezoelectric actuators are studied. Finite element modeling is used to obtain practical governing equation of motion and boundary conditions of smart hull structure. Modal analysis is conducted to investigate the dynamic characteristics of the hull structure. Piezoelectric actuators are attached where the maximum control performance can be obtained. Active controller based on Linear Quadratic Gaussian (LQG) theory is designed to suppress vibration of smart hull structure. It is observed that closed loop damping can be improved with suitable weighting factors in the developed LQG controller.
Keywords
- Hull Structure;
- Vibration Control;
- Modal Analysis;
- Piezoelectric Actuators and Sensors;
- Finite Element Modeling
- 헐 구조물;
- 진동제어;
- 모드해석;
- 압전 작동기 및 센서;
- 유한요소모델링;