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In this paper, to reduce cogging torque in solid-rotor permanent magnet synchronous motors, an analytical method, which was based on energy method and Fourier expansion, was proposed to obtain the expression of cogging torque, which can express its relation with design parameters.

为削弱实心转子同步电动机的齿槽转矩,文中提出了一种基于能量法和傅立叶分解的的解析分析方法,给出了能明确表达齿槽转矩与设计参数关系的齿槽转矩解析表达式,据此研究了极弧系数对齿槽转矩的影响。

Moreover, one set of normal equations is computed from a 7-day orbit arc.

最后累加每7天一弧段之法方程式,计算平均地球重力场模型,发现大地起伏精度在空间解析度1000公里时为5 mm,精度比EIGEN-1S及EGM96佳。

Based on the inductance model and virtual displacement principle, the general analytical model on magnetic suspension force of bearingless motor in the direction of stationary reference axes had been derived.

通过在该通用解析模型中设置不同的极弧宽度参数,衍生出无轴承同步磁阻电机、表面式永磁无轴承电机和无轴承异步电机的可控磁悬浮力解析模型。

Through technical improvement of design of 550 kV/63 kA double-break and 363 kV/50 kA single-break circuit breaker, making use of computer analysis, increasing of the rated pressure of SF6 gas and opening velocity, improving the shape of arcing contact and nozzle, optimizing the structure of interrupter , 550 kV/50 kA single-break dead-tank circuit breaker is developed.

通过对550kV/63kA双断口断路器和363kV/50kA单断口断路器技术加以改进,利用计算机解析技术,提高了额定SF6气体压力和分闸速度,对弧触头和喷口形状进行了改进,优化了灭弧室结构,从而开发出550kV/50kA单断口罐式断路器样机。

推荐网络例句

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。