This paper considers the Hamiltonian realization of feedback nonlinear systems. Two kinds of systems are considered: a plane system and a system with input channels spanning a Lagrangian subspace.
考虑了非线性系统的反馈哈密顿实现问题，主要讨论两类系统：平面系统和输入通道由拉格朗日子空间张成的系统。
The quasi-Newton method was applied to solving the augmented Lagrangian function of nonlinear programming problems. Further, the quasi-Newton formula was given.
应用拟牛顿算法求解非线性规划问题的增广拉格朗日函数，并给出了相应的拟牛顿公式。
Since the grid is used as an updated Lagrangian frame, the nonlinear convection term associated with Eulerian formulations does not appear.
因为基于网格的计算是一种动态的拉格朗E算法，因此与欧拉公式相应的非线性对流项将不再出现。
Based on the updated Lagrangian description, the incremental equilibrium equations of triangular plate shell elements for geometrically nonlinear problem are derived.
基于修正的拉格朗日描述，系统推导了三角形平面壳单元用于几何非线性问题分析时的增量平衡方程。
The MPM eliminates difficulty with mesh distortion as in the Lagrangian method, and with interface tracking and nonlinear convection term as in Eulerian scheme.
该方法避免了拉格朗日格式因网格畸变产生的数值困难，也克服了欧拉格式材料界面跟踪问题以及因非线性对流扩散项而引起的数值困难。
In the fifth chapter, we introduce an Augmented Lagrangian method for solving convex Nonlinear Semidefinite Programming (NLSDP) problems.
第五章，给出了解凸非线性半定规划的一种广义拉格朗日算法。
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.
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。
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