矩

In order to implement the algorithm, a linearization method is applied in an extremely short sampling cycle to calculate the increments of torque and flux magnitude, to derive the linear equation between the desired stator flux linkage vector increment angle and the increments of torque and flux magnitude, to derive the stator voltage vector reference and to determine the next position of the stator flux linkage vector.

算法的实现运用了线性化的方法，在一个极小的采样周期内，计算出转矩增量和磁通增量，以此推导出所需的定子磁链增量角与转矩增量及磁通增量两者之间的线性方程，进一步导出所需的定子电压矢量，并确定新的定子磁链位置。

In order to reducing the cogging torque of PM brushless direct current machines,an analytical method,which was based on energy method and Fourier expansion,was proposed,which can express how to match slot and pole to reduce cogging torque.

为了削弱永磁无刷直流电动机的齿槽转矩，首先利用能量法和傅里叶分解法进行分析并提出了减小齿槽转矩的最佳极槽配合。

The magnetic moment problem of the composite particle has been reviewed in this talk ; The effect due to the magnetic moment of leptons and stratons will be put forward for discussion if describing them as composite particles; In particular, the measured gyromagnetic ratios have been shown that it is consistent with the prediction in QED exactly; Finally, there is a possibility, which is described in a simple model, that the compositeness of stratons and leptons is not contradictory with the experiment...

在这个报告里，我们回顾了复合粒子系统的磁矩问题，分析了如果描述层子和轻子为复合粒子，磁矩问题将会带来的影响。特别是轻子的g-2值在实验上有精确的测量与量子电动力学的准确计算相当好的一致，最后从一个简单的模型讨论表明存在着可能性，轻子、层子是复合的，然而又与目前的实验相一致。

Owing to the limit of the conventional process, the output torque of the prototypes is very small. So, the hairspring torque-angle characteristic instrument is fabricated. Through making an experimental on the prototypes, the experimental results are consistent with the theory analysis, so the theory analysis is validated.

由于受传统制造工艺的限制，理论样机的转矩输出比较小，作者又制作了采用钟表游丝作为测量元件的游丝矩角特性测量仪，对原理样机进行了实验研究，实验结果与理论计算值较好的吻合，从而验证了理论分析的正确性。

Derives the formulae for calculating the distortion and stress on the acting surface of flexspline load in the drive process of the harmonic gear drive with three-wave wavegenerator;(2) analyzes and compares the performance of plastic and steel products under light load drive and calculates the probably reached limit of drive ratio for both types of flexsplines under the same load;(3) applies the harmonic gear drive with three-wave wavegenerator to the small-sized multiple-revolution electric device of valves by taking into consideration of the low limit of the drive ratio for the harmonic gear drive with three-wave wavegenerator made of plastics, improves the design on the main drive mechanism of the traditional small-sized multiple-revolution electric device of valves, and validates through examples the feasibility for the harmonic gear drive with three-wave wavegenerator made of plastics to be applied to the small-sized multiple-revolution electric device of valves. Finally the author performs calculations on the two types of the flexsplines of the harmonic gear with three-wave wavegenerator by using the finite element method and analyzes the causes for the errors.

本文根据三波谐波齿轮传动的运动变形特点，采用弹性薄壳的力矩理论，推导了三波谐波齿轮传动柔轮载荷作用面上的变形及应力计算公式；分析比较了轻载传动情况下塑料和钢材的性能，计算了塑料制谐波柔轮和钢制谐波柔轮在相同载荷情况下可能达到的传动比极限；对塑料制及钢制三波谐波齿轮柔轮进行了有限元计算，分析了产生误差的原因；针对三波塑料谐波齿轮传动比极限低的特点，将之运用于小转矩多回转阀门电动装置中，对传统的小型多回转阀门电动装置的主传动机构进行了改良设计，并通过实例验证了三波塑料谐波齿轮传动在小转矩多回转阀门电动装置中应用的可行性。

There are several problems in the conventional direct torque controlsystem such as large torque-ripple,inconstant inverter switching frequency.

摘 要：传统的直接转矩控制存在转矩脉动大、开关频率不恒定等问题。

On the basis of the calculation results, the cogging torque, rotation induced voltage and static torque is calculated.

利用磁路元的计算方法，计算了电机的定位转矩、旋转感应电压和静转矩，本文采用的磁路元法弥补了传统的永磁磁路计算方法之不足，计算精度能够满足工程计算的要求。

It is pointed out at first time that two popular methods of investigating intermittency——-bin-wise integral and strip integral are inequivalent when the translational invariance of semi-inclusive density functions is destroyed, and the anomalous scaling of these two quantities may originate from different dynamics.

我们在研究中首次指出，研究间歇现象的实验中目前流行的两种统计阶乘矩方法：关联函数Bin-Wise和Strip积分方法并不等价，它们所得到的阶乘矩的不同标度行为可能反映了不同的物理起源。

Moreover we derive the method to get interval estimation of the shape parameter.

主要结果如下：(1)给出了参数的近似极大似然估计和逆矩估计，比较了AMLE、MLE和逆矩估计的精度，另外给出了求形状参数区间估计的方法。

In this thesis, moment-volume instability in Invar materials and induced transitions of atoms from high moment state to nonmagnetic state with elevating temperature are taken to understand composition- and temperature-dependence of investigated magnetic and elastic properties of 〓.

在本工作中，Invar材料中的磁矩—体积失稳以及由其产生的随温度升高从高磁矩态向非磁态的原子跃迁机制被用来理解〓的磁性和弹性的成份和温度依赖。

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。