随着起重机运行时产生的冲击和振动，可能引起轨道安装的松动、连接件脱落、变形、裂纹、精度指标超差。
With the impact and vibration of the crane, it may cause the rail installation loose, the connector fall off, deformation, crack, precision index super difference.
极限制造是指与常规加工参数及加工精度相比的各种极限加工和超精密加工。
Extreme manufacturing covers various extreme machining and ultra precise machining in comparison to conventional machining parameters and accuracy.
舰载直升机机载超视距目标指示雷达不仅能为舰载导弹进行中继制导，延长导弹射程，而且能够提高导弹攻击精度。
The airborne OTH target indication radar for ship born helicopter not only provides relay guidance and longer range, but also improves the missile attack accuracy.
介绍了一种可提高非球曲面超精密加工机床的轮廓跟踪精度的误差补偿控制方法。
An error compensation control method which can improve contour tracing accuracy of aspherical surface ultraprecise machine is introduced.
结果表明：基于净锥尖阻力的相关关系比其他经验方法具有较高的精度，可以有效地预测该地区泻湖相沉积土的固结屈服应力和超固结比。
It is shown that the correlation based on the net tip resistance has much higher accuracy for estimating the consolidation yield stress of lagoonal deposit soil than other methods.
基于热作用的新的激光修锐和整形方法成为超硬磨料砂轮修整的有效手段，瓶颈问题在于整形精度的提高。
Laser truing and dressing based on thermal interaction has become an available method for grinding processing of super-abrasive, but how to improve the precision of dressing is the choke point.
结果表明，模糊模型参考学习控制具有响应快的优点，同时具有与PI控制同样高的稳态精度，但超调量比PI控制稍大。
The result indicates that the fuzzy model reference learning control has quicker dynamic response and the same steady accuracy as PI control, but its overshoot is slightly larger.
提出一种模糊PID控制算法，既能改善控制系统的过渡过程、减小超调量，又能保证系统跟踪位置精度。
The fuzzy PID control algorithm is presented not only to improve the transient time but also to reduce the overshoot and enhance the tracking accuracy.
以正反向超塑成形厚度均匀的TC 4钛合金深筒形件为背景厚度精度要求1。
Based on the direct-reverse superplastic forming TC4 deep cylinder with uniform thickness thickness accuracy: 1.
为了减少随机抽样的次数并保证蒙特卡罗法的数值模拟精度，对比引入了重要抽样法和拉丁超立方体抽样方法；
To reduce sampling number and assure simulation precision, Importance Sampling method and Latin Hypercube Sampling method are coupled with Neumann expansion SFEM respectively.
良好的减振措施是提高机床，特别是超精密机床加工精度的重要技术之一。
A good vibration damping measure is very important for the enhanced working accuracy of machine tools, especially for that of ultra-precision machines.
当液压伺服系统用于机械传动的校正机构时，显得调整时间长，超调量大，校正精度不高。
When used in correction mechanism of mechanical drive, hydraulic servo system manifests a long time of overshoot, large overshoot and poor correction accuracy.
介绍了一种加工精度高、超设备加工能力的深内花键齿形零件的加工方法。
This paper introduces a processing method for deep internal spline gear with high accuracy.
实验表明，这种方法比普通的PID控制方法精度高、超调量减少，具有较强的鲁棒性。
The actual result indicates that the method has higher precision , smaller overshoot and stronger robustness, compared with common PID controller.
给出了硬件原理图，并详细介绍了温度对象控制过程中克服滞后、减小超调量提高控制精度的方法。
The hardware principle diagram is given. The methods of decreasing the overshoot and increasing the control precision during controlling the temperature are described in details.
为了能在网络机群环境下高效、高精度地进行大规模冲击接触模拟，本文首先针对超参壳元的非线性分析，提出了TUL计算格式。
In order to gain high efficiency and good accuracy for the numerical simulation of large-scale contact-impact problems under cluster computer environment, the TUL formulation is presented.
在影响超精密加工工件面形精度的诸多因素中，机床的空间几何误差与运动误差往往占主要作用。
Among the factors that affect the workpiece form accuracy, space geometry errors and kinematic errors usually play the main part.
该控制器将整个控制任务分为无超调归零与高稳态精度两个子任务。
In this controller, the whole control task is divided into two subtasks, which are return-to-zero without overshoot and high steady accuracy.
几何误差对超精密车床加工精度具有较大的影响，主轴偏角误差就是其中较为主要的一种。
Geometric errors are the most significant sources which affect the accuracy of ultra precision manufacturing tremendously. The spindle deviation is one of the main kind of them.
随超精密装备加工精度和生产率的不断提高，直线气浮系统得到广泛重视和研究。
With the increasing demands for higher accuracy and higher productivity of the ultra-precision equipments, ultra-precision gas bearing stage systems driven by linear motor become research hotspots.
超磁致伸缩材料的热变形严重影响驱动器的输出精度。
The thermal-deformation of the magnetostrictive material will influence the output accuracy of the actuator seriously.
抓斗式挖泥船进行超深超宽施工时，精度控制始终是难题之一。
When a clamshell dredger is used to carry out over-depth and over-width dredging, accuracy control is always one of the difficulties.
超精密气浮工件台系统是当前主流光刻机中的核心子系统，要求具有纳米级的重复定位精度和同步运动精度。
Stage system is one of the most important sub systems in a step and scanner, the accuracy of its positioning and synchronizing has reached nanometer level.
该控制器具有动态范围宽、稳态精度高、响应速度快和超调量小的优点。
This controller has the advantages of wide dynamic range, high accuracy, fast response and little overshoot.
结果表明这种方法比普通PID控制方法精度高、超调量小，特别是对对象参数的变化具有更好的适应性和稳定性。
The results show that the method has higher precision, smaller overshoot, more stability and adaptability especially when the parameters of the object are changed, compared common PID controller.
由于本文方法只需很小的计算量且有较好的精度，对于多层应变层超晶格电子结构的研究将是有效的方法。
The small calculation effort and the satisfactory precision justify the present method as a very effective means for studying the electronic structures of multi-layers SLS.
仿真结果表明，该控制系统提高了控制精度和减小超调量及静态误差，缩短了调整过程时间。
The computer simulation results show that the control system can enhance control accuracy, shorten overshoot and static error and cut down time of adjustment process.
这种控制方法具有超调小，调整时间快，精度高的特点。
This controlling method possesses the features of smaller overshoot, shorter adjusting time and higher precision.
超精密数控车床加工精度的提高不仅依赖于数控装置的运算速度和曲线的拟合精度，同时还依赖于伺服系统的跟踪精度和点位控制精度。
The manufacture precision of super exactitude NC lathe depends on not only the operation rate of NC deviceand joined precision, but also the error of track and point location about servo system.
超精密数控车床加工精度的提高不仅依赖于数控装置的运算速度和曲线的拟合精度，同时还依赖于伺服系统的跟踪精度和点位控制精度。
The manufacture precision of super exactitude NC lathe depends on not only the operation rate of NC deviceand joined precision, but also the error of track and point location about servo system.
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