运动方程

This paper simulated the unsteady free water sheet flow on bucket surface using 3-D non orthogonal Body-Fitted coordinate system.

在水斗三维贴体坐标系中，还推导了流体粒子在水斗曲面上的运动控制方程。

A moving overset grid method with 3D-Euler solver was used to realize the simulation of the separation process.

通过采用运动嵌套网格方法，结合三维Euler方程对飞机外挂物投放过程进行了数值模拟，并针对该投放模拟方法提出了一套合理可行的并行计算方案。

The results show that the equations have benefit to the deduction of the pantograph's mechanical differential equations.

研究结果表明：利用升角与升弓高之间的关系，可简化受电弓运动微分方程的推导；应用所建立的力学模型、实测数据以及简化公式可更准确地分析和计算弓网系统的力学行为。

On the basis of establishing the differential equations of motion of the pantograph and catenary system, the TSG3 pantograph has been simulated.

在建立弓网系统运动微分方程的基础上，本文对TSG3受电弓几个主要参数进行了模拟计算。

A integrated equation set for solving plane parallel motion of rigid body was derived, and the conditions of system of forces simplified on the center of mass plane was discussed.

给出了解决刚体平面平行运动问题的一组完整方程，讨论了力系简化在质心平面内的条件。

Legs' and joint-clearances' effects were analyzed to improve the accuracy of 3-TPT parallel machine tool. Every link in the platform was treated as a joint-link train. The mapping from the errors of legs and joint-clearances to the accuracy of terminal was achieved by using matrix method with the differential of kinematic function.

为提高3-TPT型并联机床的运动精度，解决杆长误差和铰链间隙误差的影响问题，将3-TPT型并联机床的各条支链作为假想的单开链，利用矩阵法结合从运动学方程微分得到的结论，推导出杆长误差和铰链间隙误差与终端动平台位置误差的映射关系。

Each hydraulic link of 6-DOF parallel robot is treated as an open joint-link chain. Each link's local coordinate frames is established according to the position and orientation of the component of the spatial mechanism. The stiffness and damping matrices of the link are transformed into the static gross coordinate frame through transfer matrix described by the RPY description method. The differential equation of motion of the system vibration is derived.

将6-DOF并联机器人的液压分支作为假想的单开链，由空间机构的位姿建立其组成构件的局部坐标系，并利用RPY角描述方法，通过转移矩阵将各构件的刚度及阻尼矩阵依次转移到固定坐标系中，得到了系统振动的运动微分方程。

Then flow conservation equation, k-ε turbulence model, particle movement model and numerical schemes are detailed.

较详细地介绍了CFD中流动控制方程、紊流模型、粒子运动模型，以及数值方法。

The system is reduced to an EulerPoinsot motion perturbed by a small periodic excitation.

利用动量矩变量列写动力学方程，并将系统化作受周期微扰作用下的Euler-Poinsot运动。

The amplitude-frequency characteristic is given and the stability of the piston motion is analyzed by the phase plane method.

建立活塞组件动力学模型，导出了活塞振动方程，研究了活塞的幅频特性并运用相平面法分析了活塞运动的稳定性。

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。