伺服系统

In the paper, it is done elementarily for hydraulic serve position system to make mathematical model and simulation in the surrounding of MATLAB/Simulink.

本文理论结合实际，对电液位置伺服系统的数学建模和在MATLAB／Smiulink环境下的仿真进行了初步的研究。

Address the characteristics of non-uniform speed transmission, position function control and transmission ratio function control were presented to realize electronic gearbox. The differences between position function curve interpolation and general NC interpolation were analyzed. Considering the effect of uncontrollable continuous principal motion, interpolation slope and position function precompensation interpolation were presented. The relationship among interpolation, servo dynamic response and transmission precision was studied. The coordinate linkage relationship and electronic gearbox scheme in noncirclar gear hobbing were studied.

对电子齿轮箱实现非匀速比传动进行了研究，提出了位置函数控制与传动比函数控制两种非匀速比传动关系的实现方法；对位置函数控制方式，分析了位置函数曲线的插补与普通数控插补方法的区别，提出了插补斜率的概念与位置函数曲线的预补偿插补方法；对非匀速比电子齿轮箱传动精度进行研究，得出了插补精度、伺服系统动态性能指标与传动精度之间的关系；研究了非圆滚齿加工坐标联动的非匀速比传动关系，列出了多种可以满足要求的电子齿轮箱传动方案。4。

The controllers include ＂roughly regulating fuzzy controller＂ and ＂refinedly regulating fuzzy controller＂.

实验研究表明，在摆动气缸位置伺服系统中采用该控制器，能获得较好的控制效果。

Procedure for the three-ring servo system PID control algorithm simulation, which tricyclic ring for position, velocity and current loop Central.

此程序为三环伺服系统的PID控制算法仿真，其中三环为位置环、速度环和电流环。

Nonlinear friction inevitably debases the accuracy of servo systems . So , appropriate methods must be carried out to eliminate the frictional effects .

而低速的非线性摩擦不可避免要影响伺服系统的精度，所以开发高速高精度的数控机床，必须合理消除摩擦带来的影响。

Integrating the linear quadratic regulator carol theory and integral sliding mode control, a global robust optimal eliding mode control strategy was proposed for the brushless DC motors.

针对无刷直流电动机伺服系统，将线性二次型最优调节器控制理论与积分滑模控制相结合，提出了一种全局鲁棒最优滑模控制器的设计方法。

A method was proposed which inosculates the antenna stabilization and beam tracking, and the results of simulation studies on servo system of vehicle satellite communication in motion based on the Matlab/Simulink model were proposed.

给出了一种把天线稳定和波束跟踪相结合的方法，建立了基于Matlab/Simulink的仿真棋型，进行了&动中通&伺服系统的仿真研究，并给出了仿真结果。

The accuracy of back-angle can be achieved to 0.01mm through selecting soundcutting velocity and optimizing the servo systems stiffness. The accuracy meets therequirement of market.

通过选择合理的摆线数目，采用合理的切削速度，优化伺服系统的刚度，选用合适的刀具材料，可以使倒锥的加工精度达到0.01mm，满足了市场对倒锥加工精度的要求。

Analyzing and simulating the full closed-loop position servo system of CNC machine tools,this paper proves that mechanism velocity feedback can eliminate the oscillation caused by the lack of rigidity of mechanical driving chain,which is applied in the test process and good result are achieved.

通过对数控机床全闭环位置伺服系统的分析和仿真，证明机械速度反馈能有效地消除由于机械传动链刚度不足引起的振荡，并在调试过程中得到应用，收到良好效果。

The possiblehost objective reason all is very many, but, our country numericalcontrol engine bed function part development backwardness -- varietyfew, unit technical level low, performance quality insufficientlystable, the cost stays at a high level, the delivery insufficientlywas prompt and so on -- not to be able to satisfy the numericalcontrol engine bed main engine product need to develop, had noalternative but to say was most direct, the most main reason, Becauseall numerical controls engine bed all is by each kind of function part(including host 轴头, straight line rolls guide rail, ball bearingguide screw vice-, numerical control tool rest, knife storehousemanipulator, rotary table, numerical control servosystem, surveyfeedback as well as safe protective equipment and so on), the functionpart which on foundation rack and so on the lathe bed, column thecollection attire becomes is the numerical control engine bedimportant component, moreover is the indispensable part.

可能主客观原因都是很多的，但是，我国数控机床功能部件的发展落后──品种少，单元技术水平低，性能质量不够稳定，成本居高不下，交货不够及时等──满足不了数控机床主机产品发展的需要，不能不说是最直接、最主要的原因，因为所有的数控机床都是由各种功能部件（包括主轴头、直线滚动导轨、滚珠丝杠副、数控刀架、刀库机械手、回转工作台、数控伺服系统、测量反馈以及安全防护装置等）在床身、立柱等基础机架上集装而成的，功能部件是数控机床的重要组成部份，而且是不可或缺的部份。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。