运动方程

The model of couping platform system and simulation based on OMT were also given.

通过详尽的动力学分析为平台台体推导出完整的运动方程，并对此进行线性化处理，进而根据实际结构建立了系统模型框图，最后，采用面向对象建模技术对系统进行了计算机仿真。

On the basis of simulating unsteady viscous flows, coupling the structure dynamics equations, the problem of flutter is investigated for wings, empennage and wing-body configuration.On the basis, many examples, simulating the steady and unsteady viscous flows around wings, are given in this paper.

在模拟非定常粘性绕流的基础上，与颤振运动方程相耦合，分别对机翼、尾翼和组合体流固耦合现象中颤振问题进行了研究，准确求解跨音速颤振临界速度，分析它们在跨音速范围的颤振规律，并研究分析了机翼剖面形状变化对颤振速度的影响。

A theoretical analysis of local damage in a thin ductile tube hit by a flat-nosed missile laterally is developed to predict local failure due to plugging by the beam-on-foundation model. The effect of internal press was considered, and differential equations was obtained which can predict the ballistic speed of the missile which impact the tube filled with water. It can be solved by Runge-Kutta method.

采用地基梁模型对平头弹体侧向冲击钢管的冲塞型破坏模式进行了理论分析，考虑了充压情形下内压的影响，导出了钢管在冲击过程中的运动方程，可以用龙格—库塔法进行数值求解来确定弹体冲击充液压力管道的弹道极限速度。

Dynamics model of four-foot robotThe dynamics model of four-foot robot has been analyzed in detail with geometry and inertia parameter of pole.

利用杆件的具体几何和惯性参数对四足机器人的动力学运动方程做了详细分析，为今后的动力学研究奠定了基础。

In this paper, a study is made of the fluid motion equations for water flow within the jet tube of the propeller, and of the control scheme using a microcomputer in accordance with the navigating requirement.

本文是对水流在喷射推进器的喷射筒内的流体运动方程以及根据船舶航行要求对喷射推进器应采取的微机控制措施的初步探讨。

An engineering model of microburst is built up with characterization of wind shear and simulations of the aircraft through microburst wind are performed in accordance with motion equations of wind shear,at last,the influence of wind shear on flight performance for aircraft is analyzed in the paper.

随后根据建立起的风切变运动方程，对飞机穿越微下冲气流风场进行仿真，分析了风切变对飞机飞行性能的影响。

Because the error mainly comes from theresonant region, the error correction method can only be used in resonant region, andcan effectively improve the efficiency of the statistical analyzing solutions. Two types of the mistuned bladed disks, whose friction damping are blade dryfriction damping and blade-to-blade dry friction damping, are modeled respectively. Amulti-harmonic method which can employ the fast Fourier transformationtechnique is proposed to investigate the vibratory response of the bladed disks withthese two types of nonlinear friction damping. Formulations of the solution for thesetwo types of motion functions are deduced. The characteristics of the forced responseof the bladed disks with these two dry friction damping are analyzed and summarizedunder various system parameters. The vibratory response of the bladed disk with dryfriction scatter mistuning is investigated.

针对叶盘系统中两类主要的非线性干摩擦阻尼形式，分别建立了具有叶片干摩擦阻尼和叶间干摩擦阻尼的失谐叶盘系统的非线性力学模型；提出了一种可利用快速傅立叶变换技术的多谐波分析方法；分别推导了具有这两类干摩擦阻尼形式的叶盘系统运动方程的求解公式；在各种系统参数条件下，研究了干摩擦阻尼失谐叶盘系统的受迫振动响应特性；对具有干摩擦散乱失谐的叶盘系统振动响应进行了研究，分析总结了干摩擦散乱失谐对叶盘系统振动响应特性的特殊影响规律。

From the equation of motion, it is possible to estimate the total impulse of the motor, knowing the altitude achieved, burn time, ascent and descent time, etc. But how can drag be neglected and still arrive at a reasonably accurate estimate of the performance?

从运动方程，是有可能的估计总数冲动的汽车，知道高原所取得的，燃烧时间，上升和出身的时间等，但如何可以拖动被忽视，仍然得出一个相当准确估计的表现呢？

We use the single particle model and find a new nonlinear resonant acceleration criterion analytical: nw(1)+mw(2)=NW, m,n,Nare integers, w(1,w(2), W are the frequency of the two waves and the charged particle cyclotron respective,this result can be extended to the multiple waves ,we make numerical simulation and numerical results are consistent with the analytical results. This paper consists six chapters.

因此本文从基本的情况开始，以两个静电波与磁化等离子体相互作用问题为研究出发点，通过多标度展开的理论方法，求解带电粒子的运动方程，得到的一个新的非线性共振加速条件：nw(1)+mw(2)=NW，（m，n，N为整数，W，w(1)，w(2)分别为带电粒子的回旋频率以及两个静电波的频率），该结果可以推广到多个静电波作用于磁化等离子体的情况，随后通过数值计算证实了解析结论的可靠性。

The separate velocity decides the shape and size during the sphere phase. Linear relative motion differential equation can be used to reduce the debris density model. Rope and spiral is distinguished from geometry, orbital maneuver theory is used to analysis the existence of pinch point and pinch line.

在球形阶段起主要作用的是分离速度；椭球形阶段可以利用线性化相对运动方程进行分析；绳形与螺旋线形在几何上有质变，但都有结点和结线，并可以利用速度增量理论分析和解释其存在的原因。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐