نتایج جستجو برای: free vibration analysis
تعداد نتایج: 3271564 فیلتر نتایج به سال:
In this paper, the free vibration analyses of aluminum-foam sandwich structures were completed numerically. Foam and aluminum (Al) used for core surface layers structure, respectively. addition, an adhesive was as a thin film. Natural frequencies mode shapes structure obtained different thickness materials. For this, three structures, with same thickness, modeled SS1, SS2 SS3. Analyses performe...
In this paper, a relatively new method, namely variational iteration method (VIM), is developed for free vibration analysis of a Timoshenko beam with different boundary conditions. In the VIM, an appropriate Lagrange multiplier is first chosen according to order of the governing differential equation of the boundary value problem, and then an iteration process is used till the desired accuracy ...
In this study, the buckling and free vibration of Timoshenko beams resting on variable elastic foundation analyzed by means of a new finite element formulation. The Winkler model has been applied for elastic foundation. A two-node element with four degrees of freedom is suggested for finite element formulation. Displacement and rotational fields are approximated by cubic and quadratic polynomia...
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