Based on the dynamical equation, the constitutive relation and the strain-displacement relation, the vibration equation of small deflection beams was derived.
基于动力学方程、本构关系和应变-位移关系建立了小变形粘弹性梁的振动方程。
The element coupling shape function matrices are derived by means of geometrically nonlinear strain displacement relation under small deformation assumption.
利用几何非线性的应变-位移关系式，在小变形假设条件下确定了单元耦合形函数。
The element coupling shape function meatrices are derived by means of geometrically nonlinear strain displacement relation un-der small deformation assumption.
利用几何非线性的应变-位移关系式，在小变形假设条件下确定单元耦合形函数。
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