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.
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 Green-Lagrange strain at the critical location determined from the finite element analysis was used for evaluating the fatigue damage parameter of the rubber components.
使用有限元分析测定的关键部位格林-拉格兰奇应变评价橡胶部件的疲劳破坏参数。
The results show that when the Lagrange interpolation is used the efficiency of calculation is elevated significantly. And the calculation converges quickly at low finite element number.
结果表明，使用拉格朗日插值方式能大大提高运算效率，在低有限元个数的情况下很快收敛。
The ALE(Arbitrary Lagrange Euler) kinematic description is introduced into the finite element fractional step method.
采用ALE （任意的拉格朗日欧拉）运动学描述跟踪自由液面；
A penalty finite element method in which the mean stress is used as Lagrange multiplier is developed to simulate the compaction of multiphase aggregates.
罚有限元法被推导及应用于复合粘塑性多孔材料的压缩模拟。其中以平均应力为拉格朗日乘子来分析多相材料的压缩。
At the same time two nonlinear finite element equations for large deformation problem are introduced: the Total Lagrange approach and the Updated Lagrange approach.
同时介绍了大变形问题的两种非线性有限元方法：全拉格朗日法T。
A new model of spatial flexible beam element is proposed. The dynamic equation of the spatial flexible beam element is derived based on the finite element theory and Lagrange equations.
建立一种空间有限元梁单元新模型，基于有限元法和Lagrange方程导出有限元梁单元的运动微分方程。
A new model of spatial flexible beam element is proposed. The dynamic equation of the spatial flexible beam element is derived based on the finite element theory and Lagrange equations.
建立一种空间有限元梁单元新模型，基于有限元法和Lagrange方程导出有限元梁单元的运动微分方程。
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