Investigation of the nonlinear static and dynamic behaviour of rectangular microplates under electrostatic actuation
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AbstractWe present an investigation of the static and dynamic behavior of the nonlinear von-Karman plates when actuated by the nonlinear electrostatic forces. The investigation is based on a reduced order model developed using the Galerkin method, which rely on modeshapes and in-plane shape functions extracted using a finite element method. In this study, a fully clamped microplate is considered. We investigate the static behavior and the results are validated by comparison with the results calculated by a finite element model. The forced-vibration response of the plate is then investigated when the plate is excited by a harmonic AC load superimposed to a DC load. The dynamic behavior is examined near the primary resonance. The microplate shows a strong hardening behavior due to the cubic nonlinearity of mid-plane stretching. However, the behavior switches to softening as the DC load is increased.
CitationSaghir S, Younis MI (2016) Investigation of the nonlinear static and dynamic behaviour of rectangular microplates under electrostatic actuation. MATEC Web of Conferences 83: 04005. Available: http://dx.doi.org/10.1051/matecconf/20168304005.
JournalMATEC Web of Conferences
Conference/Event name3rd International Conference on Structural Nonlinear Dynamics and Diagnosis, CSNDD 2016
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