查询词典 rotor

In the natural sensitivity analysis to consider the impact of three different factors: the rotor moment of inertia, the water wheel attached to the moment of inertia and rotor arm stiffness.

在自振敏感性分析中考虑了三种不同影响因素：转子转动惯量、水体对转轮附加转动惯量和转子支臂刚度。

The fluid film bearing-flexible rotor nonlinear system with squeeze film damper is modeled practically using the finite element method and the Hamilton principle.(3) The film forces produced by fluid film bearing and squeeze film damper are determined by finite element method at any moment, and the Jacobian matrix is also determined.(4) A method for analyzing the dynamics of a large system with local nonlinearities is presented. The stability and bifurcation of the equilibrium position and the unbalance responce of a fluid film bearing-flexible rotor system with squeeze film damper are investigated based on the assumption of an incompressible lubricant together with the long bearing approximation for fluid film bearing, short bearing approximation for squeeze film damper and the"π"film cavitation model.

主要研究内容包括下面几个方面：（1）对挤压油膜阻尼器-滑动轴承-转子非线性动力系统中的非线性现象进行了机理方面的研究；（2）应用有限元方法及Hamilton原理对复杂的挤压油膜阻尼器-滑动轴承-转子非线性动力系统进行了建模分析；（3）对滑动轴承及挤压油膜阻尼器中任一时刻的油膜力及相应的Ja-cobi矩阵的确定进行了分析；（4）对一类具有局部非线性的多自由度动力系统，提出了一种可以有效地分析其动力特性的方法；（5）采用实验与理论分析相结合的方法，对挤压油膜阻尼器-滑动轴承-转子非线性动力系统的动力特性进行了分析。

According to the law of mass moment of inertia and of momentum moment, the conditions for the complete dynamic balance of rotor inertial forces and moment of inertia in the rotary piston vacuum pump are put forward, with the rotor movement in single cylinder analyzed as basis.

根据质量矩定理和动量矩定理对单缸滑阀真空泵的转子运动状况进行了分析，分别提出了转子惯性力和惯性力矩完全动平衡的条件。

OPTIPACT sensors provide an ideal way of determining rotor speed in wind turbines: just measure the velocity with which part of the rotor (e.g. nose cone or shaft) moves past a point on the body of the turbine.

OPTIPACT传感器提供了一个，确定在风力涡轮机中转子转速的理想方法：只需测量经过涡轮机体上一点的位移上，其转子的速度。

To decrease SRM torque pulses, the skew of rotor is also applied to make the rotor and the influence of skew angles on the performances is analysed.

为了减少SR电机的转矩脉动，降低其振动和噪声，本文首次将斜槽的概念引入了SR电机，分析了斜槽角度对SR电机性能的影响。

ABSTRACT The researches of this thesis are carried out around the development of high performance machine tool spindle permanent magnet synchronous motor and its drive system. Five parts are included: First of all, concerning the operating characteristics of the machine tool spindle drive system, the optimum current control strategies of spindle PMSM are determined; The design rules of spindle PMSM's key parameters are summarized, based on the study on the influences of the design parameters on the performances of the PMSM operating at different current control strategies; The practical methods to improve the flux-weakening ability of the PMSM are presented; Based on the analysis and comparison of the operating performances of PMSM with different rotor structures, a novel PMSM rotor structure, which is of excellent mechanical performance, suitable for fluxweakening operation and can improve the torque output capacity in the same time, is presented.

本文围绕高性能机床主轴永磁同步电动机及其传动系统的设计研究展开，所做工作主要包括五部分：首先，确定了主轴永磁同步电动机定子电流的最优控制策略；通过对不同控制策略下主要设计参数对主轴永磁同步电动机性能影响的计算研究，总结了参数设计规律；提出了永磁同步电动机弱磁扩速的实用措施；在分析比较不同转子磁路结构电机的性能，尤其是弱磁扩速能力的基础上，提出了一种机械性能优越，易于弱磁扩速，同时能保证电机恒转矩运行时的转矩输出能力的新型转子磁路结构。

Then a numerical simulation calculation for Polyoxymethylene rotor's Intensity and stiffness is carried out based on ANSYS finite element software which may provides the basis for reliability design of eccentric and squirmy rotor pump.

基于ANSYS有限元软件，对非金属材料的聚甲醛转子强度、刚度进行数值模拟计算及分析。将为偏心蠕动式转子泵可靠性设计提供依据。

Electrostatic gyro rotor's distortion and prolate rotor's principle of design.

王佩纶。静电陀螺仪转子的变形与长球形转子的设计原理。

During the approach phase of the rotor on the stator, the repulsive is reduced while the during the exit phase of the rotor the repulsive force is increase.

在做法相转子对定子，是令人厌恶的减少，同时在出口阶段的转子厌力增加。

Through using the computer in the teaching of critical speed experiment of flex rotor axis , this paper measurers the revenant data as the flex rotor axis passing the critical speed, and expounds the advantages of using computer in this experiment.

通过将计算机用于柔性转子轴的临界转速实验教学，对柔性转子轴在通过其临界转速时进行了相关数据的测量，并阐述了将计算机应用于该实验的优点。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。