【摘 要】
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In this paper,the reduced stiffness matrix for laminated beam is obtained when the poissoneffect is considered.According to the Hamiltons principle,two nonlinear governing equationsin transverse and a
【机 构】
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School of Mechanics and Engineering,Southwest Jiaotong University,Chengdu 610031,PR China
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In this paper,the reduced stiffness matrix for laminated beam is obtained when the poissoneffect is considered.According to the Hamiltons principle,two nonlinear governing equationsin transverse and axial directions are derived based on Euler-Bernoulli beam theory and von Kármán geometric nonlinearity.Neglecting the axial intertia and damping,the two nonlinear equations reduced to a singal equation for investigating transverse nonlinear vibration.A kind of variable cross-section composite beam is considered.The linear frequencies is verified by an open literature.
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