COMPUTATIONAL METHODS IN ENGINEERING AND SCIENCE
EPMESC X, Aug. 21-23, 2006, Sanya, Hainan, China
©2006 Tsinghua University Press & Springer
Optimal Shape Control of Multilayered Piezoelectric Smart Plate
Structure
Jianguo Wang *, Genfang Ding, Yan Qin
School of Civil Engineering, Hefei University of Technology, Hefei, 230009 China
Email: [email protected]
Abstract
The finite element equations are derived by application of the extended Hamilton principle based on the
classic electroelastic theory. Mechanical-electric coupled program has been developed by use of
ANSYS/APDL language. A sandwich plate with embedded piezo actuators and/or surface bonded piezo
actuators are modeled. The piezoelectric patch size and voltage are considered as design parameters. Zero
order and first order optimal algorithms are also applied in order to maximize the piezoelectric actuator
efficiency, improve the structural performance. To show the performance of the proposed models, several
simple examples are presented. Results show that the presented model is effective. The some conclusions are
presented in optimal design and shape control for smart structures.
Figure 1: Desired target shape of plate
Figure 2: Actual shape of plate after optimization
REFERENCES
1. Crawley EF, Deluis J. Use of piezoelectric actuators as elements of intelligent structures. AIAA J, 1987;
25(10): 1373-1385.
2. Adali SJ, Bruch JC, Sadek IS et al. Robust shape control of beams with load uncertanties by optimally
placed piezo actuators. Structural and Multidisciplinary Optimization, 2000; 19: 274-281.
3. Barboni R, Mannini A, Fantini E et al. Optimal placement of PZT actuators for the control of beam
dynamics. Smart Materials and Structures, 2000; 9: 110-120.
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