查询词典 sliding friction

In this article, authors mainly study the synchronous accumulative sliding of the roof truss by many orbits, which has more valuable reference for members with high altitude, wide span or synchronous rotation and sliding.

该文重点从屋面桁架多轨道同步累积方法进行研究，该方法在高空、大跨度、同步旋转滑移方面有较高的参考价值。［关键词］伞形钢结构；多轨道；桁架；同步旋转滑移

To the single axis control model of the stabilized platform, the sliding mode rule is founded. The value of extraneous disturbances is estimated by using GM (1, 1) grey prediction algorithm, and then it is added to the sliding mode control rule as the compensating part. At the same time, the value of the switching function is predicted by the grey prediction method, by which the control chattering phenomenon is reduced greatly.

基于稳定平台的单轴控制模型，设计了滑模控制律，采用GM(1，1)灰色预测算法估计扰动量，将其作为控制律中的补偿分量，同时应用灰色预测方法对滑模控制策略进行预测输出，有效地减弱了滑模控制的抖动现象。

The sliding mode control rule which can maintain the system stability is deduced when choose I Sq=0 to construct switching surface. However, the sliding mode control rule has control quantity only when the tracking error is not in zero.

论文以无功电流I Sq=0构造切换曲面，推导了使系统保持稳定的滑模控制率，但是该控制率只有在电流跟踪误差不为0的情况下才有控制量产生，在误差为0的情况下没有控制量产生。

This method and the condition of sliding mode are investigated and the stablity of sliding mode is analyzed.

文章讨论了这种设计方法以及滑模存在的条件，并分析了滑模运动的稳定性。

When run-time panels, due to sliding contact with the glass, so a good run; and when the newly built run-time stamp machine, so as a result of man-made and glass sliding leads to loose a few initial scans do not a problem.

当打开面板运行时，由于滑片不与玻璃接触，所以运行很好；而当刚刚盖上机盖运行时，由于人为的使滑片与玻璃间产生松动，最初的几次扫描也不会有问题。

Parameter of optimized trajectory and variable structure with sliding modes control theorem are used to construct sliding surface, obtain a new tracking trajectory guidance law.

利用基准优化弹道参数和滑模控制思想，构造滑动面，提出了一种新的弹道跟踪制导规律。

Pumping tube pipe with a fixed part of warehouse body sliding in between the two positions embedded parts per 3m welding pipe fixed, positions on the use of rubber face effective 90-degree bend towards the two east-west positions on the sliding-mode platform with human small dump then expected, with each 300mm uniformly continuous pouring of concrete.

泵送管固定部分为钢管随仓体滑升，在两仓之间每3m焊接预埋件以固定钢管，仓上工作面内采用橡胶管用90度弯头转向东西两仓，在滑模平台上用人力小斗车接料，以每层300mm连续均匀浇筑混凝土。

The terminal sliding mode controller is designed by using unit vector style; the switching function of the terminal sliding mode is designed by the quadratic optimal control theory.

采用单位向量控制形式的最终滑动模态控制器，并采用二次型最优控制理论设计最终滑动模态的切换函数。

The hydraulic in this design is a general beam-column type one, which is made up by the mainframe, electrical system and hydraulic system. It can be operated by autoloading fashion, manual fashion or spot moving fashion, to achieve the following process: sliding down rapid; sliding down slowly; adding pressure; keeping pressure; removing pressure; the low hydraulic tank work out; the low hydraulic tank untreading.

本设计中的液压机属于梁柱式一般用途液压机，主要由主机、电气系统和液压系统等三部分组成，采用半自动、手动和点动三种操作方式，能实现以下几个工作过程：滑块快速下行；滑块慢速工进；加压成型；保压延时；卸压回程；顶出缸顶出；顶出缸退回。

In order to avoid the chattering phenomena in the general slide mode control, this dissertation introduces a nerve cell discrete sliding mode control method based on CMAC (cerebella model articulation control) that combines the merit of sliding mode control and CMAC.

针对常规滑模变结构控制中存在抖振问题，本文将小脑模型关节控制器与滑模控制相结合，提出基于CMAC的神经元离散滑模控制策略，并对该控制算法进行了仿真研究和实验研究。

Objective To investigate the relationship between ovum fertilization rate and sperm morphology, acrosome reaction in IVF and to explore the influence of parameters of sperm on fertilization rate.

目的 研究体外受精(in vitro fertilization，IVF)中精子形态、顶体反应与卵子受精率之间的关系，分析精子各参数在IVF受精率方面的参考意义。

A: I hear Mr. White wants to run for the Presidency!

我听说怀特先生要参加总统竞选！