Finite Element Analysis And Control Of Adaptive Piezoelectric Laminates

As the space industry getting developed significantly, intelligent materials and intelligent structures have seized more and more people's attention. Adaptive structure as intelligent structure have been widely used in aviation, aerospace, marine, construction, automotive and other fields. Along with the development of computer technology and the maturity of finite element theory, finite element method has been used to analyze the mechanical behavior of intelligent structures. In this paper, finite element method has been adopted to analyze the static deformation and control of the adaptive structure laminates which is consisted by piezoelectric and composites materials. Firstly, the current global situation of the research and application of piezoelectric materials and piezoelectric equations are introduced. Secondly, an elastic analysis of composite laminates are made and finite element model which contained piezoelectric layer is established and the finite element equations of static deformation is derived. On the basis of the research mentioned above, according to the sensing and actuating principle of piezoelectric materials, the static deformation of laminates are analyzed and controlled by writing an MATLAB computer program and a simulation using ANSYS software is made. The final results show that the deformation of piezoelectric laminates recovered significantly and the model is valid.