Dynamic Characteristics of Smart Hull Structures Featuring Piezoelectric Materials

Abstract:

Article Preview

In this paper, dynamic characteristics of an end-capped hull structure with surface bonded piezoelectric actuators are studied. Finite element technique is used to ensure application to practical geometry and boundary conditions of smart hull structure. Modal analysis is conducted to investigate the dynamic characteristics of the hull structure. Piezoelectric self-sensing 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.

Info:

Periodical:

Key Engineering Materials (Volumes 306-308)

Edited by:

Ichsan Setya Putra and Djoko Suharto

Pages:

1145-1150

DOI:

10.4028/www.scientific.net/KEM.306-308.1145

Citation:

J. W. Sohn et al., "Dynamic Characteristics of Smart Hull Structures Featuring Piezoelectric Materials", Key Engineering Materials, Vols. 306-308, pp. 1145-1150, 2006

Online since:

March 2006

Export:

Price:

$38.00

[1] E.F. Crawley and J. de Luis: Use of Piezoelectric Actuators as Elements of Intelligent Structures AIAA Journal, Vol. 25 (1987), pp.1373-1385.

DOI: 10.2514/3.9792

[2] I. Chopra: Review of State-of-Art of Smart Structures and Integrated Systems AIAA Journal, Vol. 40 (2002), pp.2145-2187.

DOI: 10.2514/3.15309

[3] H.S. Tzou, J.P. Zhong and J.J. Hollkamp: Spatially distributed orthog-onal piezoelectric shell actuators: theory and applications Journal of Sound and Vibration, Vol. 177 (1994), pp.363-378.

DOI: 10.1006/jsvi.1994.1440

[4] H.S. Kim, A. Chattopadhyay and C. Nam: Implementation of A Coupled Thermo-Piezoelectric- Mechanical Model in the LQG Controller Design for Smart Composite Shell Journal of Intelligent Material Systems and Structures, Vol. 13 (2002), pp.713-724.

DOI: 10.1177/1045389x02013011003

[5] J.H. Kim, S.B. Choi, C.C. Cheong , S.S. Han and J.K. Lee: H∞ control of Structure-borne Noise of a Plate Featuring Piezoceramic Actuators, Smart Materials and Structures, Vol. 8 (1999), pp.1-12.

DOI: 10.1088/0964-1726/8/1/001

[6] C. Nam, P.C. Chen, D. Liu, J. Kim and A. Chattopadhyay: Neural Net-based Controller for Flutter Suppression Using ASTROS* with Smart Structures Proceedings of SPIE's 7th International Symposium on Smart Structures and Materials, Vol. 3985 (2000).

DOI: 10.1117/12.388808

In order to see related information, you need to Login.