The spline Ritz method was proposed and used to analyse the shear lag effect of box girders.
结合样条函数和里兹法提出薄壁箱形梁剪力滞效应计算的样条里兹法。
The convergence of Ritz method based on the principle of minimum potential energy is discussed.
本文讨论了基于最小势能原理的里兹法的收敛性。
The buckling radius was deduced by using the principle of minimum potential energy, Rayleigh-Ritz method and the relevant composite material mechanics.
利用最小势能原理、瑞利-利兹法以及相关的复合材料力学理论，推导出预浸料侧向屈曲半径公式。
But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
This article adopted Ritz method and divide-fit mathematical method, solved the problem of elastic buckling of thin plate under compression and bend multiplicity action.
采用里兹法和切分拟合的数学方法，讨论了单向压缩和弯曲共同作用的薄板弹性屈曲问题。
A kind of polynomial satisfying the displacement boundary conditions is designed, which makes it possible to evaluate the upper limit of fundamental freqrency by Ritz method.
文中还设计了一种能满足位移边界条件的多项式作为振型试函数，从而用里兹法得到相应的上限值。
A kind of polynomial satisfying the displacement boundary conditions is designed, which makes it possible to evaluate the upper limit of fundamental freqrency by Ritz method.
文中还设计了一种能满足位移边界条件的多项式作为振型试函数，从而用里兹法得到相应的上限值。
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