力矩

Cable reel motor torque constant tension which has the characteristics When the load increases in the motor output shaft speed will automatically come down, volume Rao assured when cable tension unchanged. Rao nature of this excellent performance closely integrated with the Volume; Cage used motor hysteresis coupling increases in size, functionality, easy installation, the constant tension similar characteristics, we can under the conditions required output torque. They can pull the cable external circumstances, hysteresis coupling protect cables; using torque motor controller to increase frequency hysteresis couplings Surge part because of the cable reel SCR converter using a new technology operation, smoothing adjustments to the motor terminal voltage, thereby ensuring that the output torque of the motor unchanged. so that the cable can smooth the road with the truck

其中力矩电机电缆卷筒具有恒张力的特点，当负载增加时电机的输出轴转速能自动随之降低，保证电缆卷饶时张力不变，这个优越的性能与卷饶性紧密结合；采用笼型电机加磁滞式联轴器具有体积小，功能全，安装维护方便，近似恒张力等特点，既可以根据工况需要输出力矩，又可以在电缆受外力拉住的情况下，通过磁滞式联轴器保护电缆；而采用力矩控制器加变频电机加磁滞式联轴节的电缆卷筒因其调压部分采用可控硅变流新技术，可以平滑地对电机的端电压进行调节，从而保证了力矩随负载的变化而改变，使电缆能平稳的跟大车的行进。

This paper presents an analysis of the moment of inertia of coiler in hot strip mill in detail, the derivation of theoretical formula of the inertia and the analysis,taking 2050 hot strip mill for example, of the inertia change rule and the compensation of moment of inertia .

对热轧带钢卷取机的惯性力矩进行了分析，推导出惯性力矩的理论表达式，并结合 2 0 50热轧卷取机分析了惯性力矩的变化规律，对惯性力矩进行了补偿。

Then analyses the principle of direct current moment electromotor and builds the mathematical model and gives the block graph of transfer function and studies the PWM control strategy.

然后对直流力矩电机工作原理进行了分析，建立了直流力矩电机的数学模型，给出了直流力矩电机传递函数框图，研究了直流力矩电机的PWM控制方式。

The output torque is made up of the torque caused by the magnetic field, the torque caused by the plastic viscosity of the MR fluid,and the torque caused by the coulomb friction.

阻尼力矩的模型主要由以下几部分组成：一是由磁场作用于磁流变液产生的力矩，二是由磁流变液的动力粘度产生的力矩，最后是由装置的摩擦产生的力矩。

When we analyse rigid body with the theory of limit equilibrium, we do not obtain always reasonable maximal principle in physics, and the maximal value is the result of soil plasticity deformation.(2) Thoroughly commenting the typical method of slices from their satisfid equilibrium conditions, calculational parameter and their convergence, the thesis sortes the methods into four kinds. The first satisfies all kinds of equilibrium conditions, can obtain interslice force and the factor of safety.

2从满足的平衡条件、求解的参数及其解收敛性等，分析了各种常用极限平衡条分法，将其分为四类，第一类方法既满足力的平衡，也满足力矩平衡，能获得条间力和稳定系数的收敛解；第二类方法只满足一个方向力的平衡和力矩平衡，只能求得稳定系数；第三类方法既满足力的平衡，也满足力矩平衡，但不是严格的静定问题，解的收敛性差；第四类方法满足两个方向力的平衡，不满足力矩平衡，可求得稳定系数和条间力的大小，不能求得条间力方向。

In lateral bending, the new PARAPODIUM increased 8.3% than the traditional PARAPODIUM. In torsion, the new PARAPODIUM increased 144.5% than the traditional PARAPODIUM. Additionally, the new PARAPODIUM generated extra moment about 8.5 N-m in flexion.

作用力矩中，新型在侧向力矩中比旧型平均增加8.3%，在扭转力矩中新型比旧型平均增加144.5%，且新型PARAPODIUM会额外产生8.5 N-m的前弯力矩。

Under the conditions to consider the influence of the inertia of loading side and the stiffness of torque sensor,the dynamic models are established,the conclusion that the superfluous moment is related to the motion velocity,acceleration,and the differential of acceleration is presented.0n the basis of this dynamic model,a more effective control method to reject to extraneous moment from the view point of the division and cooperation of the function of the controller,i.e.hybrid control method,is proposed.

在考虑力矩传感器刚度和加载侧惯量影响的情况下，建立了电液力矩加载系统的动态模型，指出多余力矩不仅与运动速度干扰有关，而且还与运动加速度干扰和加速度的变化率干扰有关。在此基础上给出了一种从职能分工角度抑制多余力矩更有效的控制方法——混合控制法。

The experiment result shows that, as far as the environment temperature decreases -5℃, starting resistance torque increases 2.5 N·m; starting resistance torque increases 3-8 N·m when the rotating speed increases 50 r/min.

通过ISAD柴油机起动台架试验可以看出：相同的环境温度下，起动阻力矩随起动转速的提高而增大，每提高50 r/min，每缸平均起动阻力矩增加3～8 N·m；起动阻力矩随环境温度的下降而增加，0℃以下时，每降低5℃，平均每缸起动阻力矩增加2.5 N·m。

It introduces a kind of novel loading test system, based on the operation principle of damper. this loading system is operated by the driving motor. it realizes the loading, in that the damper has a negative drive force that puts on the motor. Based on the ordinary electromagnetic damper, the thesis presents a novel hybrid excitation electromagnetic damper which has adjustable work characteristic, analyses the working principle and structural feature of the electromagnetic damper, deduces the formulas to calculate the eddy current density through the Electromagnetic theory, analyses the distribution of the eddy current in the cotyloid rotor, and also studies the method of calculating the damp torque, establishes the mathematical model of the electromagnetic damper, analyses the relationship between the electromagnetic damper structural parameter and damp torque, researches the engineering design and analysis method of the electromagnetic damper, provides theory foundation for the design and analysis of the electromagnetic damper, contrives a hybrid excitation electromagnetic damper that satisfies the target request, designs a set of compound excitation electromagnetic damping loading control system whose control core is AT89C51 monolithic integrated circuit, analyses the electric circuit part, and carries on the experimental test to this set of electric circuits. Finally it debugs this electromagnetic damping loading system, this system satisfies the target request proposed.

论文提出了一个全新的加载测试系统种类，该加载系统是在阻尼器工作原理基础上，利用电动机拖动阻尼器运转，从而阻尼器产生一个与运动方向相反的阻尼力矩，该力矩作用在电动机上实现对电动机加载测试；同时，论文在一般电磁阻尼器基础上提出了一种新型的可调式复合励磁电磁阻尼器结构，该种阻尼器的工作特性在一定范围内可进行调节；论文分析了电磁阻尼器的工作原理和结构特点，运用电磁场理论分析推导了电磁阻尼器的涡电流密度公式，分析了涡电流在转子杯内的分布图，并对阻尼力矩计算方法进行了研究，建立了电磁阻尼器的数学模型，分析了电磁阻尼器结构参数和阻尼力矩之间的关系，对电磁阻尼器的设计和分析方法进行了研究，为电磁阻尼器的工程设计建立了理论基础；设计了满足技术指标要求的复合励磁电磁阻尼器和一套以AT89C51单片机为控制核心的复合励磁电磁阻尼加载控制系统，对该控制系统硬件电路各部分进行了分析和设计，对软件进行了设计，并对控制电路进行了试验调试，该系统满足所提出的加载指标要求。

Transmitted torque was composed of magnetic force torque and viscosity torque. Maximal diameter of the actuator disk was key size to improving torque. Torque by unit moment of inertia decreases and viscous power loss increases with maximal diameter increasing.

机构传递的力矩由磁致力矩与粘性力矩构成，圆盘外径是提高传递力矩的关键尺寸；外径的增大会减少单位转动惯量所传递的力矩，增大粘性功率损失。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。