The first stage is called primary rolling, or cogging.
这个阶段叫作初轧或开坯。
The niobium strips were fabricated by forging-cogging, rolling and heat treatment.
研究了锻造开坯、轧制、热处理工艺对铌带深冲性能的影响。
They are also preferred in applications where no cogging and minimal torque ripple is important.
他们也应用于无波动或最小转矩脉动领域。
A cogging torque measurement system was proposed, which was composed of stepping motor, torque sensor, etc.
提出了一种由步进电机、转矩传感器等元件组成的齿槽转矩测试系统。
Different forging hammer cogging-down way will lead to different evenness degree and graininess of eutectic carbide.
锻锤开坯方式不同其共晶碳化物均匀度、颗粒度有很大的差异。
When cogging effect too big will affect the suspension control of HSMV, thus affecting the normal operation of HSMV.
当齿槽效应比较大时会影响磁浮列车的悬浮控制，从而影响磁浮车的正常运行。
The calculation formula of the cogging torque are derived by the Fourier decomposition and the virtual displacement method.
利用傅里叶分解及能量虚位移法，推导了磁阻转矩的计算公式。
The accurate calculation of cogging torque assists in optimizing the design of claw pole permanent magnet synchronous motors.
脉动转矩的准确计算是爪极永磁同步电动机优化设计的基本前提之一。
Two methods of reducing cogging torque, namely, the stator tooth notching and the two rotor pole stacks shifting are presented.
介绍了定子齿面加辅助凹槽和转子磁极分段移位两种抑制磁阻转矩的方法。
Factors influencing noise of the motor systems such as cogging torque, HALL signal errors and armature magnetic field are analyzed.
本文分析了影响永磁同步电机噪声的因素，如定位力矩，霍尔信号的误差以及电枢反应磁场等。
Accordingly, a cogging torque and noise are reduced without reducing a back-electromotive force, thereby obtaining a high efficiency.
因此，在不减小反电动势的情况下减小了顿转扭矩和噪音，由此获得高效率。
There are two causes or cogging force in linear permanent magnet motors, resulting from the slotting and the finite length of the iron-cored.
永磁直线电机的定位力是由铁心开槽及铁心的有限长产生的。
Results show that cogging using concave anvil can increase the deformation at the center part of the billet and can press holes more effectively.
实验结果表明，利用凹面砧拔长，锻件心部能够获得更大的变形量，对空洞的压合效果更好。
But in PMLSM, there are end effect, cogging force and ripple disturbance which confine its application as high accuracy numerical control machine.
但系统中存在端部效应、齿槽效应、纹波效应等推力波动，限制了其在高精度数控机床等要求高性能领域的应用。
It is found that if the slot number per pole is not an integer, new lower harmonics of cogging torque may be introduced when PM shifting is adopt.
因此要通过磁极偏移减小齿槽转矩，除了减小永磁体对称时存在的齿槽转矩谐波外，还要减小新引入的低次谐波。
The FEM results show that the magnitude of cogging torque in both motors is less than 0.1% that of the rated torque after optimization with proposed method.
有限元计算结果显示，优化设计后，齿槽转矩的幅值不足额定转矩的0.1%。
The ABAQUS6.5 was used to analyze the H-Shape metal cogging, in which the mass scaling and mesh adaptive was utilized to improve the simulation effectiveness.
利用ABAQUS6.5对H型钢的开坯过程进行数值分析，由于单元的严重畸变导致数值分析的异常终止。
Because of the differences on structure and operational principle, the ways of reducing cogging torque in DSPM is different from other permanent magnet motor.
与其他永磁电机相比，由于结构和运行原理的不同，双凸极永磁电机齿槽转矩的削弱方法也有所不同。
In accordance with the cogging characteristic of the long stator of the linear synchronous motor, a new inductive sensing system of relative position is designed.
根据直线同步电机长定子的齿槽结构特性，设计了一种新型的电感式相对位置传感器。
The effects of different combinations of slot number and pole number on cogging torque are also investigated. The study shows that the cogging torque could be gr…
研究表明，采用偏心磁极结构可有效地削弱齿槽转矩，而对每极磁通影响较小，本文提出的方法是有效的。
The stator cogging effect is usually ignored when we calculate generator magnetic field by air gap permeance method, which lead to the generator fault information missing.
采用气隙磁导法计算发电机磁场时通常忽略定子齿槽效应，漏掉了发电机的故障信息。
Based on three dimensional finite element analyses of magnetic fields, the cogging torque of a prototype motor is calculated using the virtual work and Maxwell stress tensor methods.
在电机内磁场三维有限元数值分析的基础上，采用虚位移和麦克斯韦张量两种不同的方法计算了电机的脉动转矩。
The effects of stator and rotor eccentricity on the magnetic field distributions, cogging torque and unbalanced force were calculated in this paper by using finite element method (FEM).
采用有限元法计算分析了定子偏心与转子偏心对无刷直流电动机的气隙磁场、定位力矩及单向磁拉力的影响。
Due to the interaction between the permanent magnet and slotted armature lamination, there exists cogging torque in slotted permanent magnet motors, which may cause noise and vibration.
永磁电机中永磁体与有槽电枢铁心之间相互作用，产生齿槽转矩，引起电机振动和噪声。
The design and construction of fold and directional blastings for demolition of an office building and water tower in the Second Cogging mill of Anshan Steel and Iron Corp. are expounded.
阐述了折叠爆破和定向爆破拆除鞍钢第二初轧厂办公楼和水塔的设计和施工。
On this basis, back electromotive force without load and with load is researched, simulated and analyzed, and cogging torque is analyzed and calculated in different dimensions of magnetic steel.
在此基础上，仿真了空载和负载下的电机反电动势，并且对不同磁钢尺寸下的定位力矩进行了分析计算。
Parameters of the induced electromotive force and the electromagnetic torque and so on of the novel motor have been calculated, and it is not difficult to catch the maximum value of cogging torque.
计算了复合电机的感应电动势和电磁转矩，捕捉了齿槽定位转矩的最大值等电机参数。
Parameters of the induced electromotive force and the electromagnetic torque and so on of the novel motor have been calculated, and it is not difficult to catch the maximum value of cogging torque.
计算了复合电机的感应电动势和电磁转矩，捕捉了齿槽定位转矩的最大值等电机参数。
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