Thermomechanically coupled non-linear vibration of plates |
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Institution: | 1. DICAM Department, School of Engineering and Architecture, University of Bologna, Italy;2. Department of Innovation Engineering, University of Salento, Lecce, Italy;1. Facultad de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago, Chile;2. Sorbonne Universités, CNRS & UPMC Univ Paris 06, UMR 7190, Institut d’Alembert, F-75005, Paris, France;3. Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Avda. Diagonal las Torres 2640, Peñalolén, Santiago, Chile;4. UAI Physics Center, Universidad Adolfo Ibáñez, Santiago, Chile |
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Abstract: | An analytical method is presented for the analysis of large amplitude thermomechanically coupled vibrations of rectangular elastic thin plates with various boundary conditions. The field of temperature and deformation are assumed to be coupled, and the transverse and longitudinal deformations are mutually dependent. The fundamental equations of non-linear flexural vibration of a plate stemming from Berger's analysis are coupled with the energy equation. Based on one-term approximate solution technique, the system of non-linear equations is solved by employing the methods of Galerkin and successive approximations. The analytical solutions are compared with those for the linear case and from the numerical analysis to investigate the influence of thermomechanical coupling and large amplitude on the period of plate lateral vibration. |
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