Multi-frequency excitation of microbeams supported by Winkler and Pasternak foundations
作者： Zia Saadatnia , Hassan Askari , Ebrahim Esmailzadeh
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摘要: The multi-frequency excitation of a microbeam, resting on nonlinear foundation, is investigated and the governing equation motion microbeam system developed. viscoelastic-type foundation considered by assuming parameters for both Pasternak Winkler coefficients. well-known Galerkin approach utilized to discretize obtain its ordinary differential equations. multiple time-scales method employed study microbeam. Furthermore, resonant conditions due external as well combination resonances first two modes are investigated. influences different parameters, namely coefficients, position applied force geometrical factors frequency response examined.
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