拉格朗日方法

SPH法是一种拉格朗日方法，该方法可以准确且有效地捕捉气-液交界面。

As a Lagrangian method , SPH can track the moving interface between the gas produced by the explosion and the surrounding water effectively .

利用格子Boltzmann方法对气固两相流进行数值模拟，其中颗粒的轨迹利用指数拉格朗日方法进行计算，而流场的计算方法则是基于一种修正后的LBGK模型。

This paper focused on the numerical simulation of gas solid two phases flow by lattice Boltzmann method . The particle tracks were calculated using a developed exponential Lagrangian scheme , and the approach used for the computation of fluid phase was based on a modified lattice BGK model .

在该模拟中，本文通过对COD浓度的计算，又把质点跟踪法和改进后的欧拉-拉格朗日方法作了比较。

In this modeling , the Particle-tracing Method is again compared with the improved ELM by calculating the concentration of COD .

对带V型火焰稳定器的模型燃烧室中气液两相化学反应流动进行大涡模拟（LES），研究中采用了欧拉-拉格朗日方法。

The gas-droplet two-phase reacting flow in a model combustor with the V-gutter flame holder is studied by an Eulerian-Lagrangian large-eddy simulation ( LES ) approach .

九十年代以后，基于物理的方法开始引入到计算机图形学中，它主要是基于流体动力学中的Navier-Stokes方程，按照描述方式的不同可以分为拉格朗日方法和欧拉方法。

In the 1990s , physical based method has been introduced into the computer graphics , which is mainly based on Navier-Stokes equation of fluid dynamics .

相比于传统的牛顿-欧拉方法及拉格朗日方法，Kane方法既简洁又高效，特别适合于计算机计算。

Compared with the traditional Newton-Euler method and the Lagrange method , the Kane 's method is explicit and efficient , and especially suitable for calculating with computer .

以多刚体系统动力学的拉格朗日方法对车辆悬架进行研究，建立了基于多刚体系统动力学的主动悬架系统模型，并采用PID控制策略，进行了理论分析和计算机仿真。

An analysis on vehicle suspension by the Lagrange 's method of multi body dynamics was presented and a model of active suspension system was established based on the multi body system dynamics . PID control strategy was adopted to perform theoretical analysis and computer simulation .

基于该连杆模型，根据腿部关节的几何关系，采用D-H方法推导出仿人机器人的正运动学和逆运动学模型，同时根据拉格朗日方法推导出仿人机器人的动力学模型。

The forward and inverse kinematics models of humanoid robot are deduced based on the D-H method and the geometrical relationships of the leg joints , and at the same time its kinetics model is deduced according to Lagrange method .

半拉格朗日方法及其在数值模拟和数值预报中的应用

Semi Lagrangian scheme and its application in numerical simulation and prediction

半拉格朗日方法在全球原始方程模式中的实现

Implementation of the Semi Lagrangian Method in the Primitive equations Model

应用拉格朗日方法建立了手臂和机器人的动力学方程。

The dynamical equation is established with the Lagrange methods .

二维自由拉格朗日方法&计算流体弹塑性侵彻问题

A two dimensional free Lagrange method for elastic-plastic penetration problems

基于拉格朗日方法的行星齿轮动特性研究

Research on the dynamic characteristics of planetary gear based on Lagrangian method

结合拉格朗日方法和并联理论建立了完整的三自由度并联调姿机构的动力学方程，并对分析结果通过仿真进行了验证。

The dynamics equation is established based on Lagrange theory .

利用欧拉-拉格朗日方法预测层流泡状流的含气率分布

Analysis to Phase Distribution in Laminar Bubbly Flow with Euler Lagrangian Method

欧拉-拉格朗日方法在三维水流模型中的时间阻力

Artificial resistance of Eulerian-Lagrangian method in 3D numerical model

基于增广拉格朗日方法的多柔体动力学研究

Flexible Multibody Dynamics Research Based on Augmented Lagrangian Method

应用于离心过滤的拉格朗日方法

The Application of Lagrange Method to the Centrifugal Filtration

然后，提出一个基于增广拉格朗日方法的高效迭代算法。

Then , we present an efficiently iterative algorithm using augmented Lagrangian method .

与牛顿方法相比，拉格朗日方法要简便得多。

The Lagrange method is simpler as compared to the Newton 's method .

拉格朗日方法建模下的火箭弹起始扰动研究

Research of Initial Disturbance of Rocket in Lagrange

用拉格朗日方法对粒子的速度、温度、轨迹进行处理。

The velocity , temperature and trajectory of the particles are treated with Lagrangian approach .

离散相采用拉格朗日方法追踪颗粒运动轨迹；

The Lagrange method approach was used to trace the particle movements in dispersed phase .

本文采用拉格朗日方法研究了牵引榴弹炮在牵引行驶状况下的动力学问题。

The running dynamical response of a towed howitzer was studied applying the Lagrangian method .

是一种拉格朗日方法。

It is a Lagrangean method .

首先，由拉格朗日方法，推导出自由漂浮空间机械臂系统的动力学方程。

Firstly , the dynamic equations of free-floating space manipulator system are derived through the Lagranian formulation .

这种新方法将欧拉法与拉格朗日方法结合起来，简单高效。

This new method , simple but efficient , takes advantage of Eulerian method and Lagrangian method .

在时域计算过程中，我们采用半混合欧拉-拉格朗日方法追踪流体的瞬时水面。

In the computational process , the semi-mixed Eulerian-Lagrangian scheme is adopted to track the transient free surface .

其中固体域采用基于拉格朗日方法描述的有限元法进行离散。

The nonlinear displacement domain of solid phase is simulated by using finite element method on the Lagrange frame .

第三章讨论的是用非单调无导数的增广拉格朗日方法解决带有非线性等式和非线性不等式约束的优化问题。

Chapter 3 discusses the nonmonotone derivative-free augmented Lagrangian al-gorithm for solving the nonlinear equality and inequality constrained optimizations .