查询词典 Lagrangian

Firstly, with the Lagrangian formulation and the relationship of the system linear, angular momentum conversations, the full-controlled dynamics equation of the system was derived.

由拉格朗日第二类方法及系统动量、动量矩守恒关系，建立了漂浮基空间机械臂完全能控形式的系统动力学方程。

In [33] and [34], a nice generalization of minimal Lagrangian submanifolds called Hamiltonian-minimal submanifold was introduced and investigated by Y.G.

Oh在[33]和[34]中最先引进的哈密尔顿极小拉格朗日子流形，此类子流形式是对极小拉格朗日子流形一种很好的推广，同时他对此类子流形作了相应的研究。

From the constructions of twisted normal bundle of minimal surface in R~n, we get a lot of examples of special Lagrangian submanifolds.

我们也通过扭曲法丛的构造得到许多特殊拉格朗日子流形的具体例子。

The method is based on the first-order optimalitycinditions for a local minimizer of the augmented Lagrangian,with different form,being transformed into another nonliner system.

该方法是以增广Lagrangian函数局部极小点的一阶最优性条件为基础，通过不同的形式，将其转化为另外一个非线性系统。

The ideas and methods of modern differential geometry have found wide application in classical mechanics, in the theory of multibody system dynamics, and in the Lagrangian and Hamiltonian formalisms of mechanics.

微分几何动力学建模理论已经广泛应用于经典力学，多刚体动力学理论和Lagrange和Hamilton动力学建模理论当中。

A new form of Arbitrary-Lagrangian-Eulerian formulas are developed based on the basic law of Newtonian mechanics and hypothesis of Newtonian fluid, in which the conception of domain mapping is introduced so these formulas can be used to describe the fluid flow in an arbitrary deforming domain.

从最基本的牛顿运动定律和流体粘性的牛顿假设出发，基于区域映射的概念推导了ALE(Arbitrary-Lagrangian-Eulerian)公式的一种表达方式，能够在二维任意变形区域内描述牛顿型流体的运动。

Two application methods of Lagrangian equation and bond graphs in the dynam-ics of electro-mechanical systems are discussed with stress laid on the AFS methodsuch that:1.the relation between the non-conservative generalized force(orgeneralized electromotive force)E_i and bond graph is clearly illustrated and 2.theimproved method for calculating the generalized force(or generalized electromotiveforce)E_i for the electro-mechanical system is presented.

本文首先讨论并对比了拉氏方程与键图在机电系统动力学上应用的两种不同形式。并提出了：①关于运用 AFS 形式时非保守广义力 E_i 与键图间的关系；②机电综合系统中计算广义力E_的改进方法。

Presents again a new formulation of Lagrange s equations by using an augmented Lagrangian function with the second order non linear nonholonomic constraint equations.

以Dirac方程为依据，求出了在电磁场作用下，质量为m ，自旋为 1 /2的荷电粒子在场中运动时的能量本征值及其拉氏函数密度的明显表示式，并对其微观物理机制作出了较为明晰的解

Presents a new formulation of Lagrange s equations by using an augmented Lagrangian function with the first order non linear nonholonomic constraint equations, and offers a unified variational approach to both holonomic and nonholonomic constraints.

采用带有二阶非线性非完整约束方程的扩张性拉氏函数，建立起了拉格朗日方程的又一新公式，该新公式较为规则，它提供了一种完整约束系统和非完整约束系统两者统一的变分方法。

Matrices, Vector and Vector Calculus, Newtonian Mechanics-single Particle, Oscillations, Nonlinear Oscillations and Chaos, Gravitation, Some Methods in the Calculus of Variations, Hamilton's Principles Lagrangian and Hamiltonian Dynamics, Central-Force Motion, Dynamics of a System of Particles, Motion in a Noninertia Reference Frame, Dynamics of Rigid Body.

矩阵和向量的计算、单一质点的牛顿力学、线性与非线性的振动运动、重力、微积分上的变分法介绍、哈密顿原理、拉氏及哈氏力学、连心力下的运动、质点系的运动力学、在非惯性坐标中的运动、刚体的运动。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。