Parameter Identification for Piezoelectric Material in a Piezoelectric Laminated Composite Beam Model

Shuang Bei Li; Lin Jie Jiang; Du Yi Mo; Li Xin Huang

doi:10.4028/www.scientific.net/AMM.174-177.448

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 174-177Parameter Identification for Piezoelectric...

Parameter Identification for Piezoelectric Material in a Piezoelectric Laminated Composite Beam Model

Abstract:

A fit-to-data technique was proposed to identify the mechanical and piezoelectric parameters of a model involving a piezoelectric laminated composite beam. Analytical solutions for displacement of the model were derived for parameter identification. The parameter identification problem was formulated as the problem of minimizing the objective function defined as a square sum of differences between the measured displacement and the computed displacement by the analytical solutions. Levenberg-Marquardt method was used to solve the minimization problem. The sensitivities of displacements with respect to the parameters were based on the finite difference approximation method. Numerical example shows that the proposed technique for parameter identification is effective.

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Periodical:

Applied Mechanics and Materials (Volumes 174-177)

Pages:

448-454

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.174-177.448

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Online since:

May 2012

Authors:

Shuang Bei Li, Lin Jie Jiang, Du Yi Mo, Li Xin Huang

Keywords:

Laminated Composite Beam, Levenberg-Marquardt Method, Parameter Identification, Piezoelectric Material

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