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由于具有良好的结构、力学性能,复合材料层合板在现代飞行器上大量应用;而压电复合材料,作为一种新兴的智能材料,由于其独特的力电耦合性能得到了人们更多的关注。本文研究含有压电片的复合材料梁和板在电场作用下的变形控制问题。基于经典的梁理论和层合板理论,分别研究了下列问题:(1)双压电片布置的悬臂梁的变形;(2)含有压电层的层合板变形控制问题;(3)含有一对压电片的层合板的变形控制问题。针对上述问题,分别给出了理论解和数值解,并进行了相关讨论分析。结果表明压电材料可对结构进行精确控制,因此本文的结果可对复合材料梁和板在电场作用下的变形控制问题提供工程参考。
Due to its good structure and mechanical properties, composite laminates have been widely used in modern aircraft. As a new smart material, piezocomposites have drawn more attention due to their unique electromechanical coupling properties. In this paper, the deformation control of composite beams and plates containing piezoelectric films under electric field is studied. Based on the classical beam theory and the theory of laminates, the following problems were studied: (1) the deformation of the cantilever beam with the bimorphs; (2) the deformation control problem of the laminates containing the piezoelectric layer; (3) Piezoelectric sheet laminate deformation control problems. In view of the above problems, theoretical solution and numerical solution are respectively given, and the related discussion and analysis are carried out. The results show that the piezoelectric material can control the structure accurately. Therefore, the results of this paper can provide engineering reference for the deformation control of composite beams and plates under electric field.