运动方程

A method is presented to study the dynamic problems of treelike multi-rigid-body system with described motion.

给出了应用拉可朗日乘子法和坐标分离法建立具有指定运动的树形多刚体系统动力学方程的方法。

First, aiming at the problem of stability for the elastic vimineous bar, the mechanical models are established.

基于小挠度下杆所承受载荷的微分方程，确定了细长运动杆的失稳临界载荷。

The evaporation of some oils and their emulsifies was modeled with pan evaporation method, and the characteristics of the evaporation in different states was inspected. The equations of evaporation rate and the factors of inhibitory action of emulsification on evaporation have been obtained. The dynamics mechanism of emulsification has been discussed based on the observation and analysis of the characteristics of oil and water motion. The processes of spilt oils weathering have been integrated by the composition and states of oils in this prediction model.

本文主要是从目前研究的薄弱环节作为研究突破口，用浅盘蒸发法对原油及其乳化物的蒸发进行模拟，考察不同原油在不同阶段和乳化状态下的蒸发特征，得出蒸发速率方程及乳化对蒸发抑制作用因子；观测和分析油水运动规律，分析乳化动力学过程；以组成和状态是决定风化特征的主要因素和联系各风化过程的纽带这一思想为基础建立溢油风化预测模型。

The theory, equations and numerical method of parabolized proliferation of fluid movement Wang Ruquan as a main participant, 1997

流体运动的扩散抛物化理论、方程和数值方法（主要参加者王汝权，1997

The theories of ship steering are recapitulated and the linear differential equations are deduced. The Nomoto one/two order of linear models and Norrbin/Bech nonlinear models are discussed.

概述了船舶操纵理论，推导了船舶操纵运动线性微分方程，讨论了Nomoto一阶／二阶线性模型及Norrbin／Bech的非线性模型。

Mathematical model of nonlinear vortex-induced vibration was presented for predicting the nonlinear dynamic responses of submerged floating tunnel tethers which were subjected to wave, current and oscillatory displacements at their upper end in horizontal and vertical directions.

建立了水中悬浮隧道锚索在波流场中涡激振动的非线性数学模型，考虑了锚索的几何非线性对其涡激振动的影响，并应用有限差分法求解了锚索的运动控制方程。

In the modeling of flight simulation, a six-degree-of-freedom whole non-linear equation and wind-tunnel tests data of MAV are used, the propeller twist and induced air flow on MAV are took into account.

在飞行动力学和运动学仿真中，采用了六自由度全量非线性方程，以微型飞行器的风洞吹风实验数据为依据，考虑了螺旋桨的气动扭矩、陀螺力矩和尾流对微型飞行器的影响，精确地反映了微型飞行器的实际运动特性。

Based on its exact kinematic analysis and by applying the power equation of kinetic energy theorem,its balance analysis is given,and the exact analytical expression for computing crank axle torque is obtained.

在对摆杆型游梁式抽油机进行详细运动分析的基础上，应用动能定理的功率方程对其进行了平衡分析，得到了曲柄输出轴扭矩的解析表达式。

The main contents include the kinematic and dynamic characteristics of floating body and concept about large body; the kinematic and dynamic conditions and governing equations for constrained floating body; illumination of simple harmonic by decomposition into diffraction and radiation; introduction of relevant effect forces; the formula of velocity potential in waters with constant depth; the scattering by a vertical cylinder with circular cross section.

简述浮体的运动及动力特征、大尺度物体的概念；受约束浮体的运动学及动力学条件及其控制方程；通过分解为绕射和辐射问题讲解简谐运动及有关的作用力；等水深地形上速度势的表达式；铅垂圆柱产生的散射。

In this work,the volume data is encapsulated firstly and its logistic coordinate is defined,then the direction vector and the center of the cutting plane are calculated,the movement route of the plane is solved,specially a new sampling rule in cutting plane is presented.

该方法首先对体数据进行封装并定义逻辑坐标系，接着在逻辑坐标系中计算剖切平面的法向量和中心，求出平面的运动轨迹方程，并提出一种新的剖切面采样准则。

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。