拓展了结构分析有限条法，基于固体力学有限形变理论的更新拉格朗日法（U 。
The finite strip method in structural analysis has been extended, and elastic-plastic large deformation spline finite strip method based on the Updated-Lagrange method (U.
指出驻留过程和更新过程分别是以拉格朗日观点和欧拉观点描述水交换特征。
It is pointed out that the residence process and the flushing process characterize the water exchange in Lagrangian viewpoint and Eulerian viewpoint respectively.
结构部分以四边形平板壳元为基础，采用更新的拉格朗日(UL)方法分析结构大变形引起的几何非线性问题。
The structural analysis is based on a quadrilateral flat-shell element and an updated Lagrange (ul) formulation, which can be employed to model geometric nonlinearities arising from large deflections.
首先，本文基于虚功原理，推导了结构几何非线性方程，指出更新的拉格朗日列士法U。
First of all, the nonlinear equation of structure is presented in this paper based on virtual work principle. It is thought that the Updated Lagrangian Formulation u.
首先，本文基于虚功原理，推导了结构几何非线性方程，指出更新的拉格朗日列士法U。
First of all, the nonlinear equation of structure is presented in this paper based on virtual work principle. It is thought that the Updated Lagrangian Formulation u.
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