运动方程

By introducing non-relativistic, adiabatic and quantum approximation to NLCMEs in the FBG with hyperbolic tangent apodization, and assuming the soliton as a particle with low velocity and invariant energy, the track equation of soliton is obtained.

利用双曲正切中间变迹光栅中的NLCME，引入非相对论-绝热-准量子近似法，将光栅孤子作为一个低速运动且能量守恒的整体进行分析，得到了孤子的轨迹方程。

By analyzing beam elements characteristics running on idler and pulley, adding belt viscous-elastic behavior and resistance behavior, and combining take-up model and reasonable boundary, it obtained belt dynamical equations in two-dimension model.

通过分析梁单元在托辊及滚筒上的运动特性，结合输送带的粘弹特性、运行阻力特性等参数的影响，再结合拉紧装置的振动特点及合理的单元边界条件，得到了输送带二维数学模型的动力学方程。

With a cavitating model established for N-S equations from cavitation theory, cavitation evolution on the surface of a hydrofoil is developed: incipience of cavity, cavity growing, reentrant flow appearing, cavity retracting, shedding and smaller broken cavities moving downwards with the main flow.

根据空化流原理，建立了基于N-S方程求解的空化模型，利用这个模型计算了空化在翼型表面的演化过程：初生、长大、形成回注水流、空穴回缩、减小、脱落，以及小空泡随主流向下游运动的现象。

In this paper,nonsteady interaction between moving body with antenna system and plasma in region of compression is investigated indetail.

该文研究了空间飞行体在运动过程中，其前端压缩区内飞行体与等离子体的非稳态相互作用问题，得到了在强天线辐射源高频场作用下的控制方程。

Afterwards, we propose a new constant coefficients measurement method in dynamic equation of robot manipulators, this measurement method includes three groups of experiments: group one, let each joint of robot manipulator keep static to measure the constant coefficients in gravity term of dynamic equation and Coulomb frictional torque, group two: let only one joint of robot manipulator move at a constant velocity to measure the viscous frictional coefficient and constant coefficients in effective inertia of dynamic equation, group three: let only one joint of robot manipulator move at constant acceleration at a time to measure constant coefficients in Coriolis and centrifugal term and coupling inertia of dynamic equation.

让操作器单个关节恒速运动，在对驱动系统中传动机构，减速装置和电感系数综合考虑的基础上，这组实验对粘滞摩擦系数及有效惯量中常数系数进行测量。这种测量方法只要求旋转关节的驱动电机施加恒定电压，回转关节驱动电机施加正弦波电压。3。让操作器单个关节恒加速运动，这组实验测量动力学方程中哥氏力、离心力项和耦合惯量项中的常数系数，这种测量方法只要求单个关节匀加速运动，而其它各关节保持静止，这种测量方法虽然要求关节匀加速运动，但不必进行关节角加速度检测，而只需进行关节角位移和角速度检测即可，输入量直接给定为输入电压。

This paper,on the basis of motion kinetics equation,after considering the inertial force,infers the theorem of kinetic energy in non-inertial system .

从质点组相对运动动力学方程出发，考虑每个质点受到的惯性力，推导出非惯性系的动能定理，并在此基础上对机械能守恒进行研究，给出了惯性力为保守力的条件。

The trajectory theory model of air target was made up according to its basic rule of flight control. A stochastic difference equation to model the air target movement in inertial frame coordinates was introduced.

根据空中目标飞行控制的基本规律，首先建立了空中目标航迹分布的理论模型，并在惯性坐标系中建立了基于随机微分方程的目标运动模型。

The research on the explicit solution and integrability are helpful in clarifying the movement of matter under the nonlinear interactiveties and play an important role in scientifically explaining of the corresponding physical phenomenon and engineering application.

非线性演化方程精确解和可积性的研究有助于弄清物质在非线性作用下的运动规律，对相应物理现象的科学解释和工程应用将起到重要作用。

In particular,many integrable equations arise naturally from motions of curves and surfaces.

特别地，许多可积方程都自然地产生于曲线和曲面运动。

The necessary and sufficient conditions under which the form invariance is a Lie symmetry is presented.

建立了系统的运动微分方程，给出了系统在特殊无限小变换下的形式不变性的定义和判据以及系统的形式不变性是Lie对称性的充分必要条件。

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