取控制微分方程的齐次解作为梁段的有限元位移模式。
The homogeneous solution of the differential equation for the shear lag was taken as the displacement pattern of finite segment.
本文指出，有限元位移法自动保辛，有限元混合能表示也保辛。
The FEM displacement method is naturally symplectic conservative, the mixed energy representation is also shown symplectic conservative.
利用样条函数在同一区域上的变异，建立半解析样条元位移场函数。
This paper makes use of the different type of spline function in the same domain to make the displacement function of the semi-analytical spline element.
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