作为计算埋地管道变形和强度的重要基础，给出了弹性地基梁的挠曲线微分方程(位移方程)。
As a important basis of calculating the distortion and strength of the buried pipeline, the paper gives out the space curve differential equations of elastic foundation-beam (displacement equation).
有了各段的挠曲方程的解以后，可以用求导的方法求出双排桩各点的变形及内力情况。
After fetching each deflection equations, the situation of deformation and internal forces can be achieved.
对欧拉梁的大变形问题进行了深入研究，直接从欧拉梁的非线性挠曲线微分方程，推导出求解梁挠度的一种简便有效的积分表达式。
Large deformation problems of Euler beams are studied. An efficient integration formula for the deflection is deduced directly from the nonlinear differential equation.
本文将奇异函数与拉普拉斯变换方法相结合，用这种方法来计算阶梯梁的弯曲变形，可以方便地求得梁的挠曲线方程。
The singular function is combined with Laplace 's transformation to calculate the deflection of stepwise beam. In this way the deflection equation of the beam is conveniently determined.
本文将奇异函数与拉普拉斯变换方法相结合，用这种方法来计算阶梯梁的弯曲变形，可以方便地求得梁的挠曲线方程。
The singular function is combined with Laplace 's transformation to calculate the deflection of stepwise beam. In this way the deflection equation of the beam is conveniently determined.
应用推荐