刚体

It is also the base of structure optimization.According to main object characteristics of structural dynamics design,structuraleigenveetor sensitivity computation is,first,be studied.A Neumann series expansionmethod is proposed in accordance with the modal method and is developed to agreewith the structure with rigid body modes.A rapid Neumann series expansion methodfor eigenvector sensitivity is formed;it may greatly improve the efficiency ofcomputing eigenvector derivation.

本文根据结构动力学设计的主要目标特性，首先进行了结构特征向量灵敏度分析研究：形成了计算特征向量灵敏度的Neumann级数展开法，并将其扩展到适用于具有刚体模态的结构特征向量灵敏度分析；研究出计算特征向量灵敏度的快速Neumann级数展开法，该方法大大提高了特征向量灵敏度分析的效率；建立了无需K-1运算的结构特征向量灵敏度分析的共轭梯度迭代法。

According to the combination of the classical friction theory based on Newton geostatic and Eulers formula and modern dynamics analyses of belt conveyor, this paper put up particular mechanics analyzing toward unsteady predicament of belt conveyor.

本文基于牛顿刚体力学、欧拉公式为基础的经典摩擦传动理论和现代输送机动态分析相结合的方法，对于带式输送机的非稳定状态进行了详细的力学分析。

In this paper, an identification method of rigid body inertia parameters based on non linear damping mounting system is introduced and verified.

在现有的识别方法基础之上，介绍并验证一种基于非线性阻尼支承系统的刚体惯性参数识别方法。

Central-force Motion, Dynamics of a System of Particles, Dynamics of Rigid Body, Coupled Oscillations, Nonlinear Oscillations, Motion in a Noninertial Reference Frame, Continuous Systems.

力学 (0，3)/应用力学（0，3）中心力下的运动、多粒子系统动力学、刚体动力学、耦合振动、非线性振动、非惯性参考座标系中的运动、连续系统。

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。

This method can be used to simulate the scattering feature of rotating, vibrating and nonrigid moving object.

应用该方法可以模拟转动、颤动以及非刚体运动目标的电磁散射特性。

Results The first five calculated nonrigid modes of the engine block are well agreed with the tested ones.

结果 计算出机体的前五阶非刚体模态，与试验结果相对照比较吻合。

Experimental results indicate it is robust and has reliable performances under the case of heavy occlusion of the nonrigid moving object.

实验结果表明，该方法可实现对非刚体目标遮挡下的有效跟踪。

Hhe experiment results show that the algorithm proposed in this paper can adapt to the moving changes of the nonrigid targets,and the targets can be tracked accurately.

实验结果表明，本方法能够适应非刚体目标在运动中的自由变化，使得跟踪更加精确。

Level set algorithm is an effectual algorithm when tracking the nonrigid moving targets on complicated condilions.

在对复杂背景条件下的非刚体目标进行跟踪时，水平集方法是一种非常有效的方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。