定子

Level circular canal fixed under stator coil, 'lower circular canal' for short, is installed according to number of line bars to connect it with insulation draft tube via airproof parts, and to ensure coolant in line bar evenly distributed.

定子绕组下方配置的水平环管，简称下环管。按定子线棒数在环管上装设接口，经密封构件与绝缘引流管连接，以确保所有线棒中冷却介质的均匀分配。

This work puts forward a new kind of stator insulation structure for a special evaporative cooling commutate asynchronism generator with high power density. For the first time using a simulation tool—EMAS software setting in a workstation, this work calculates the electric and temperature fields in the primary project of the new kind of stator insulation structure.

但是，卧式电机定子采用蒸发冷却技术，受到了来自传统绝缘的不合理束缚，主要体现在绝缘与传热的配合问题，这对于蒸发冷却方式在中大型卧式电机定子上的工程实用提出了挑战。

Secondly, it analyses the line type between stator and rotor of PDM, gets its derivation bone line equation that satisfies the motor conjugate line type of theoretical sealing and the equation of curved surface, and determines its basic processing method and technology according to the line type characteristic of the spiral curve through analyzing some kinds of typical spiral curve processing methods.

其次，对螺杆钻具定子与转子进行线型分析，推导出其满足理论密封性的马达共轭线型的骨线方程和曲面方程，根据螺杆钻具定子内孔螺旋曲线的线型特点，在分析了几种典型的加工螺旋曲线加工方法的基础上，确定了其基本的加工方法和工艺。

But the working condition of the screw pump is so rigorous that the ordinary rubber could not fulfill the requirement of the terrible working condition such as high temperature,high pressure,long working hours,corrodent,seasonal stress and so on.

但采油螺杆泵工作条件十分苛刻，如高温、高压、工作时间长、磨蚀性介质、周期性挤压力等等，传统的定子橡胶已临近其性能极限。本文主要讨论纳米CaCO3和PVC树脂对丁腈橡胶的改性效果，综合提高丁腈橡胶的强度、耐油、耐磨等性能，通过改性使得丁腈橡胶能够满足采油螺杆泵定子材料的性能要求。

Because of the particularity of claw pole structure, the axial magnetic field produced by the stator winding is transformed into the diametric one along the circle of air gap.

当定子绕组通电时，电机中产生轴向磁通，爪极的作用就是将定子绕组产生的轴向磁场转化为沿气隙圆周径向排列的磁场，同时将 1对极转化为 P对极[1] 。

Different stator structures have an impact on the rotor eddy current loss and the rotor loss can be reduced by proper motor design.

定子结构对高速电机转子涡流损耗影响很大，合理地设计定子结构能够减小转子涡流损耗。

The modal and harmonic response analysis was performed by ANSYS 9.0, and then the elliptic motion locus of the stator was plotted and discussed.

在设计的电机结构中，给出了压电陶瓷的极化、分布和驱动方式，运用有限元分析软件ANSYS9.0对定子进行了模态和谐响应分析，并运用振动理论推导了定子齿上的椭圆运动轨迹方程。

The analyzing result reveals that the normal motion behavior of stator surface points is not pure planar elliptic, which breaks the concept of elliptic motion usually assumed by many researchers. On basis of these analyses, the criteria of vibration mode select and optimal design are presented for simple-free and free-free supported stators.

首次提出了定子表面质点非平面椭圆运动行为的一般性，打破了国内外学者经常假设的椭圆驱动轨迹的局限性；以此为基础提出了定子在简支和自由边界条件下的振动模式选择和结构参数优化设计的原则。

The equivalent circuit of the motor with this circuit has been analyzed in detail, and the nonlinear mapping between the equivalent resistance and the duty cycle is deduced.

鉴于有些应用场合需要有轻载低速的工作点，本文在转子斩波调阻的基础上，增加了定子降压调速，推导出了定子电压的计算公式。

The change of observation error was analyzed in the case of stator flux observer ui model at high speed and in model at low speed when the parameters of motor changed based on the mathematical model in the stationary coordinates.

利用静止坐标系下的异步电机数学模型，分析当电机参数改变时，高速运行状态下定子磁链观测器 u i 模型和低速运行状态下 i n 模型的观测误差变化情况，然后给出定子磁链全阶观测器增益矩阵的确定方法。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。