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The conjunct fault, which broken rotor bar and stator inter-turn short circuit fault occur simultaneously, has been studied in this paper based on multi-loop model of squirrel cage induction motor.

针对笼型异步电动机转子断条与定子绕组匝间短路双重故障进行了仿真研究。

The adaptive filter approach, the Park transform approach,the Hilbert transform approach and the instantaneous power approach are usually utilized to detect the rotor bar breaking fault on-1ine.

针对异步电动机轴承故障，本文就基于振动信号分析和定子电流信号分析的轴承故障检测方法分别进行了讨论。

An articulated rotor with a blade hinge offset and with an elastic restraint about the flap hinge is used as the rotary wing dynamic model.

旋翼动力学模型采用水平铰外伸量和桨叶根部有弹性约束的结构模型。

This paper presents several control methods for BLDC motor, and describes their fundamental principles ,advantages and disadvantages in brief. The method of speed-independent function,based on a new flux linkage function,is explained in detail. This method makes it possible to detect the rotor position over a wide speed range from near zero to high speed.

本文介绍了几种无位置传感器无刷直流电动机的转子位置检测方法，并对它们的基本原理，优缺点作了简单的说明，详细地阐述了基于一种新磁链函数之上的与速度无关的位置函数控制方法，利用这种方法从零转速到高转速的宽速度范围内能检测到转子位置。

Due to the salient structure of SRM, the flux linkage is a nonlinear function of both the rotor position and excitation current, which makes the measurement difficult.

该系统通过DSP 片内外设模块实时采集电机的电压电流信号，并将结果传送至上位机，利用数字离散方法计算磁链，建立磁链与电流、位置角度的对应关系。

The research result provided the effective calculational model and numerical method for the design and analysis of composite flywheels. And it offered the valuable reference to similar rotor structures and composite structures.

本文的研究成果为复合材料飞轮的设计与分析提供了有效的计算模型和数值计算手段，同时为类似的复合材料结构件转子的研制与开发提供了有价值的参考。

Further more, a Finite element analysis of flywheel rotor was made to increase the security of the flywheels test, 9 modes Frequency were taken out according to the rotating speed of the flywheel, the results can act as the theory base for the structure design and tests of the flywheel.

为了增加飞轮实验的安全性，本文利用有限单元法对飞轮转子作了模态分析，抽取了飞轮工作转速范围内的9阶模态频率，可作为飞轮结构设计和飞轮实验的理论基础。

Dave Thomas: A helicopter has four main controls: foot pedals, collective pitch lever, cyclic, and throttle. The foot pedals control the tail rotor.

戴夫·托马斯：直升机有四个主要的控制器：脚踏板、总距操纵杆、周期变距操纵杆以及气门。

Analyzed the stress distribution under the common act of the environment temperature, inertia force and shrink fit when the rotor was working.

转子工作时，在环境温度、惯性力及过盈配合等多种因素的共同作用下，分析了转子的应力分布。

Robinson four-place R44 RavenⅡis bran-new conception design of helicopter owning fuel-injected engine, rotor aerodynamic design, higher, faster, bigger loading capacity

安全可靠：国际直升机协会2002年年会公布统计，R22的安全性可0美涡轴直升机！

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。