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Structural Engineering and Mechanics Volume 12, Number 5, November 2001 , pages 491-506 DOI: https://doi.org/10.12989/sem.2001.12.5.491 |
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A new piezoelectric shell element and its application in static shape control |
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Su Huan Chen, Guo Feng Yao and Hua Dong Lian (China)
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| Abstract | ||
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In this paper, a new three-dimensional piezoelectric thin shell element containing an integrated distributed piezoelectric sensor and actuator is proposed. The distributed piezoelectric sensor layer monitors the structural shape deformation due to the direct effect and the distributed actuator layer suppresses the deflection via the converse piezoelectric effect. A finite element formulation is presented for static response of laminated shell with piezoelectric sensors/actuators. An eight-node and forty-DOF shell element is built. The performance of the shell elements is improved by reduced integration technique. The static shape control of structure is derived. The shell element is verified by calculating piezoelectric polymeric PVDF bimorph beam. The results agreed with those obtained by theoretical analysis, Tzou and Tseng (1990) and Hwang and Park (1993) fairly well. At last, the static shape control of a paraboloidal antenna is presented. | ||
| Key Words | ||
| piezoelectric shell element; static shape control. | ||
| Address | ||
| Su Huan Chen, Guo Feng Yao and Hua Dong Lian, Department of Mechanics, Jilin University, Nan-Ling Campus, Chang Chun, Jilin 130025, China | ||