力矩

By the feedback linearization, the previous nonlinear system is turned into a six-degree linear subsystem and a one-degree internal dynamics subsystem.

在转动惯量不确定性以及轨控大干扰力矩存在的情况下，对闭环控制系统进行了大角度姿态运动数字仿真。

Based on the friction moment principle of robot joints, the influencing factors of robot joint lockup are described.

基于机器人关节摩擦力矩产生的机理，阐述了机器人关节锁紧的影响因素。

In virtue of Fluent of CFD software, we carry though computation of aerodynamics of an air-to-air missile in different Mach meter and different attack angle and gained movement trend of lift coefficient、drag coefficient and pitching moment coefficient with variety of Mach number and attack angle, meanwhile, we also obtain distributing trend of pressure, temperature and weather velocity.

借助于商业CFD软件FLUENT，对某型空空导弹在不同攻角、不同飞行马赫数的气动力进行了计算，得出了该型导弹升力系数、阻力系数和俯仰力矩系数随飞行马赫数和攻角的变化规律以及导弹表面的压力分布、温度分布和来流速度分布。

The commercial CFD software Fluent was used for simalation of aerodynamic charactirestics of some terminal guided munitions in terminal segment under different affack anyle and mach, the variation lav of or lift coeflienct, drag coeflient and roll moment coefficient with flight mach and attacls angle was obtained, The semulation result shows the caculated aerodynarve parameters can be referend to high accuracy firing table for the terminal guided projectile.

文中主要利用商业CFD软件Fluent对某型末制导炮弹的末制导段在不同攻角、不同飞行马赫数的气动特性进行了数值仿真，得出了该型末制导炮弹升力系数、阻力系数和滚转力矩系数随飞行马赫数和攻角的变化规律。结果表明，计算所得气动参数可以为该末制导炮弹编制高精度射表提供数据依据和参考。

In this thesis, the Hinf robust loop shaping control of the magnetic bearings for a moment wheel system is investigated.

本文的研究对象为控制力矩陀螺磁悬浮系统，着重研究整个系统的鲁棒Hinf回路成形控制。

The magnetic torque is chosen as the executor which has a small mass and needs low power.

考虑到小卫星的质量和功耗限制，选取了功耗、质量较小的磁力矩器作为控制手段。

The active and passive magnetic coupling torque drives the impeller to rotate, thus achieving the liquid transportation.

主动磁和被动磁的耦合力矩带动叶轮旋转，从而实现液体输送。

On the basis of the classic electromagnetic field theory and London equations,a calculation model was founded for the magnetic torque of a superconducting sphere with high rotating speed in a uniform magnetic field.

基于经典的电磁场理论和伦敦方程，为在均匀磁场中高速旋转的超导球体所受力矩的计算建立了理论分析模型。

Selecting corresponding rolling force model, the paper make an experiment and studies on cold rolled paper-thin strip processing characteristics of sixteen-roll rolling machine based on cold-rolled theory aand forms corresponding rolling model, tension model and moment calculation model .And comes to a conclusion that distortion force and press utmost have a large effect on rolling force and paper-thin strip shape, primarily presenting paper-thin strip rolling subarea theory that rolling force decreases corresponding to the thick decrease of strip but increases rapidly when to a certain thick.

结合带钢冷轧基本理论，选用适当的轧制压力模型，针对十六辊轧机轧制极薄带钢时的工艺特点进行了实验和分析，建立了相应的张力模型及辊系传动力矩模型；并得出变形抗力及压靠对轧制极薄带钢时的轧制力和板形有很大的影响，初步提出了当带厚较大时，为保持板形良好，随着轧件厚度的减少，轧制压力相应降低，当轧制到一定厚度时，轧制压力随着带厚的减少急剧增加的极薄带轧制分区理论。

According to Floquet theory and transition curves of Mathieu equation, two different modified strained parameter methods are compared on precision of periodic solutions.

中文摘要：为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。