运动方程

This paper represents the basic principle of kinematic analysis of planar mechanisms carried out by using the vector loop equation.

本文以复数形式的矢量封闭方程为基本工具，阐述了用它作平面机构运动分析的原理。

Then the paper analyses the vector kinematics equation of the speed, and on this foundation, makes use of the software package of Simulink to carry on kinematic simulation to the mechanism, the kinematic regulation of slip block and linkages provide the basis for the design and manufacture and application of the mechanism.

对其速度运动学方程进行分析，并在此基础上利用MATLAB/Simulink软件包对该机构进行运动学仿真，通过仿真可得到滑块和连杆的运动规律，为机构的设计、制造和应用提供了依据。

Using the principles of transformation matrix and vector operation, the trajectory equation of cutting edge relative to workpiece is derived.

摘 要：运用图形矩阵变换原理和矢量运算法则，推导出了立铣刀周铣过程中刀具切削刃上任意点相对于工件运动的轨迹方程，在此基础上构造出一种基于工件网格划分的三维表面形貌仿真算法，并给出了相应的仿真算例。

Firstly, the optical structure of the measurement region of the dual beam laser Doppler velocimeter is derived exactly based upon the wave function of Gaussian beam.

首先从高斯光束的波动方程出发，推导出双光束激光多普勒测速仪相干区域的光学结构及随被测体一起运动的微粒所散射的光波函数。

The muscle is simulated by elastic foundation and put into the wall of managing having a viscid condition and the motion of fluid by the linear momentum equation and the continuity equation, and therefore, the governing equations are derived.

由肌肉弹性假设为弹簧来描述管壁运动，也加入了管壁具有黏滞性的条件，而且配合流体的线动量方程以及连续条件，推导出统御方程式。

The dynamical response of one-dimensional metal bar considering Peierls-Nabarro force and viscous effect of solid has been researched. Movement of displacement wave in the bar follows SG type equation.

研究了计入Peierls-Nabarro力和固体黏性效应的一维金属杆在简谐外力扰动下的动力响应，其位移波的运动规律是Sine-Gordon型方程。

The behaviour of the viscous fluid flo w with a free surface is expressed by the unsteady Navier-Stokes equation.For nu merical integration in time domain the velocity correction fractional step metho d is used.

在任意拉格朗日欧拉坐标系下，用非定常不可压的N avier-Stokes 方程来描述粘性带自由面流体的运动，在时间的数值积分中采用了速度修正分步法。

Motibity changed by gear-box in direction and rotate speed is transferred to the blade axis on the right side to drive the blade axis. blade axis'parameter, blade assembling frame and blade assembling means are ascertained. The load and movement of the blade axis are analyzed. And the best blade rotate speed is ascertained. According to the request of no-tillage soil, the appropriate furrow openers are chosen. They are staggered and assembled in two rows .According to the sliding cutting request, the crucial parts of the anti-blocking——the sliding cutting blade, its edge curve is analyzed and designed in principle. The academic curve function is gotten. Combined with working practice and technics request, the blade's figuration parameter is designed, 65Mn is chosen as the material for blades. The working load is analyzed. And the intension of the sliding cutting is analyzed and checked with ANSYS software. At last, the spring rack of the suppress wheal is analyzed in principle. The theory and parameter of designing the spring rack of the suppress wheal. Experiment indicated that the anti-blocking capability of this anti-blocking equipment was excellent.

设计出适合此防堵装置的动力传输方案，动力经变速箱变向变速后从右侧传给刀轴，驱使刀片切割秸秆；确定出了刀轴的参数、刀片的安装结构和安装方法，对刀轴的受力和运动进行了分析，确定出了刀轴最佳转速；根据免耕地的要求，选择恰当的开沟器，并采用双排错位安装的办法，避免了"瓶颈"现象的发生；根据滑切的要求对此防堵装置的关键部件——滑切刀片的刃口曲线进行了理论分析和设计，得到了刀刃的理论曲线方程；结合生产实践及工艺要求，设计出刀片的外形参数，选择65Mn作为刀片的材料；分析和计算了刀片在工作中承受的载荷，运用ANSYS 软件对滑切刀片的强度进行了分析校核；最后对镇压轮的弹簧支架结构进行了理论分析，提出了设计镇压轮弹簧支架的理论和参数依据。

According to Markovian theory and Langevin equation with random ambulate in concern simulated the excursion and diffusion of oil.

采用马尔科夫随机理论建立分析污染物粒子的运动过程，即通过Langevin方程追踪质点求得油膜的漂移扩散过程中考虑了油膜扩散随机数的影响。

Theory; the spatial meshing theory includes comparative motion, comparative differential and conjugative curved surface; and the application of meshing theory includes gear drive and worm drive. The spatial meshing theory is the main part of the course.

课程的重点讲解内容有曲线的参数方程、切线、法面、弧长、曲率、空间曲线的基本公式、挠率及平面曲线的基本公式等；曲面第一和第二基本公式，法曲率、主方向和主曲率、欧拉公式、短程挠率、欧拉公式和贝特朗公式推广、相对法曲率和相对短程挠率等；刚体的绝对和相对运动速度、相对微分和绝对微分、相对速度和相对微分、轨迹曲面的法曲率和短程挠率等；空间共轭曲面的啮合条件、诱导法曲率、两类界限点、等距共轭曲面、空间啮合的二次接触原理等；蜗杆传动的数学模型建立及啮合特性分析方法等。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。