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This paper employs a modal expansion method to investigate the sound transmission loss property of single sinusoidal corrugated panel with the simply supported boundary condition. Firstly, the corrugated panel is equivalent to an orthotropic flat panel. The governing equation of vibroacoustic coupling system consisting of the orthotropic flat panel and the incident sound wave is built. Based on the...
Actuating characteristic of laminated PVDF actuator (LPA) partially covered on a beam is studied in this paper. Considering large deformation of the beam, coupled dynamic equations of the system are derived based on Hamilton principle. The formulas of nonlinear actuating forces are obtained and the parametric study is then conducted to evaluate the effects of geometric and physical properties of the...
This paper deals with the shape control of a cantilever thin plate structure by using laminated piezoelectric actuators (LPA). The shape control equation of the cantilever thin plate partially covered with LPA is derived based on the constitutive relations of the elastic material and piezoelectric material and the thin plate deformation theory. The actuating forces produced by LPA are formulated as...
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