转子的

The early fault feature signal can be obtained by means of de-noising, decomposition and reconstruction.

文中对早期故障特征量的选取、有用信号与噪声信号的分离方法、突变信号与奇异信号的特征提取等进行了分析和研究，并以转子早期碰摩和早期不平衡为例进行了实验研究。

Permanent magnet synchronous motors have been widely used as AC drives over the last two decades due to their high efficiency, high power density and no dc field winding in the rotor. It is well known motion control of PMSM requires accurate position and velocity signals to realize field orientation.

永磁同步电动机由于无需励磁电流、运行效率和功率密度都很高，在过去的二十年里已被广泛地应用在交流调速传动中，但它的高性能控制需要精确的转子位置和速度信号去实现磁场定向。

In addition, equivalent series reactance of excitation transformer worsens the condition of the thyristor operation, and it can bring transient over-voltage at the moment of switching thyristor. The transient over-voltage will endanger the field winding.

励磁变压器的串联电抗恶化了晶闸管的换相工作条件，并在晶闸管元件导通与关断瞬间引起危及到转子励磁绕组安全运行的过电压。

In terms of cost and reliability, the indirect vector control system , which estimates the position of the rotor flux vector from the machine parameters, is widely used.

出于成本和可靠性的考虑，间接矢量控制系统，即基于转子磁链位置估计的矢量控制系统在实际中得到了广泛的应用。

Therefore, the features of rotor and stator faults arise in the spectrum of the current Park vector in which the fundamental positive sequence component is filtered out.

也就是说，通过对旋转滤波后的电流Park矢量的频谱进行分析，就可以对电机的定转子故障同时进行监测。

Based on the theory of heat conduction a strict mathematical method is used. In the paper, error analysis for different heat exchange coefficients is made.

在设计和运行中，正确地分析转子温度和应力的变化规律，对于实现机组的安全经济运行具有重要的意义。

A rotor as claimed in claim 11 wherein said inclining means comprises blade shank materials having different stiffness characteristics.

转子宣称的那样，在索赔11 ，其中说，倾斜的手段，包括叶片小腿材料有不同的刚度特性。

The 3-dimension solid model of the 8th turbine rotor blade of some type aero engine is constructed in software UG, and the numerical calculation region of stream field in ECM is set up in special flow field calculation software FLUENT based on the principle of hydrodynamics. The distribution of 6-dimension forces is got after numerical calculation, and the equation between 6-dimision forces and interelectrode gap is set up.

基于流体力学原理，用UG造型出某型航空发动机8级涡轮转子叶片，用流场计算软件FLUENT构造电解加工中叶片的流场计算区域，经数值计算得到六维力的分布，并从理论上建立六维力与间隙之间的关系方程式，为后续试验研究提供了参考依据。

In order to realize the request of output torque, angular momentum, volume, weight and life-span of the attitude control components on nano-satellite (less than 10 kilogramme in weight) and picoSatellite (less than 0.1 kilogramme in weight),a kind of single stator-double rotors electromagnetic micromotor that made by bulk silicon micromachining process is mentioned.

论文针对纳卫星(重量低于10公斤)和皮卫星(重量低于1公斤)中飞轮姿态控制、执行元件对微电机输出力矩、角动量、体积、重量和使用寿命等的需求，提出了基于体硅微机械加工工艺的单定子—双转子结构平面电磁微电机的设计思想。

Usage: suitable for precise lathing of rotor outer circle and commutator that with big shaft diameter and V block can not be used.

用途：适用于V型块无法使用的较大轴径的转子外圆或换向器的精车。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。