力矩原理

The paper presented that braking moment of disk brake was important for hoisting safety, and introduced the principle and method using a displacement transducer and PC to monitor braking moment on line.

阐述了盘式制动器制动力矩对提升安全的重要性，介绍了一种利用位移传感器和工控机在线监测制动力矩的原理和方

It is an open problem for the equivalence principle of extended rotating bodies.It is significant for equivalence principle test for extended rotating bodies with a torsion balance to measure the internal friction torque of a gyroscope.

利用角动量定理对实验采用的电磁驱动机械陀螺的内部摩擦力矩进行测量，分析了这一摩擦力矩对宏观旋转物体等效原理扭秤方案检验的影响，并就此提出了几项改善措施。

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 paper presents the formulation of the inverse kinematics of the 3-RSS/RU parallel mechanism and analyzes the direct solution. It deduces velocity Jacobian matrix. The moment transfer Jacobian matrix is obtained base on the principle of virtual work and simulated the input and output.

本论文首先推导了3-RSS/RU并联机器人的运动学反解方程，并对位置正解进行了分析，推导了速度雅可比矩阵，在此矩阵的基础上，利用虚功原理得到了力矩传递雅可比矩阵，对力矩的输入输出做出了仿真。

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。

A new load moment limiter is presented which incorporates the 78E54 single-chip processor and the MGL-240128 LCD with the built-in T6963C coral chip,describing in detail the limiter's operation and how to process the signal from the sensor installed on derricking rope of crawler crane .

介绍了一种利用单片机 78E5 4以及内藏T6 96 3C的液晶显示器MGL - 2 4 0 12 8设计的力矩保护器的工作原理；并对该力矩保护器在履带式起重机上工作时，在变幅绳上取力时信号如何处理做了分

In this paper, magnetorheological fluids and it's rheological behavior were introduced. And the principle of the disc-shaped magnetorheological fan clutch was investigated theoretically. The Bingham model was used to characterize the constitutive behavior of MR fluids subject to an external magnetic field. Based on Bingham model the expressions of the torque and the output rotational speed within the clutch is derived to provide the theoretical foundation in the discal design of the clutch. Then the calculations of the radius of the disc, the thickness and volume of MR fluids within the MRF clutch are yielded. Finally, the sketch of the clutch was designed.

文中对磁流变液的材料及流变特性进行了介绍，分析了圆盘式磁流变液汽车风扇离合器的工作原理，基于Bingham模型建立离合器的力矩模型，结果表明离合器传递的力矩随外加磁场的变化迅速变化，力矩的大小可以通过调节磁场强度的大小来控制，进一步推导了离合工作半径，工作间隙厚度等设计计算公式，最后完成了离合器的原型设计。

The basic working principle of a self-excited retarder was introduced briefly and the main circuits of its drive controller were detailedly designed. Based on brake torque gear and vehicle's working condition, the formulae for calculating SCR's conductive angle were strictly derived and the real-time control on brake torque has been realized successfully by controlling SCR's conductive angle.

论文简要介绍了自励式缓速器的基本工作原理并对其驱动控制器的主要电路设计进行了阐述，详细推导了基于制动力矩档位与运行工况的可控硅导电角计算公式，通过控制可控硅导电角实现了制动力矩档位的实时控制。

This paper systematically describes the simulation of steering wheel reaction torque under all operating conditions by utilizing a torque motor,its principle,condition analysis and steady - state error analysis of torque motor. It provided a new approach for si...

本文系统地阐述了利用力矩电机进行全工况仿真汽车转向盘反力矩的原理、力矩电机的工况分析及稳态误差分析等，为全工况仿真汽车转向盘反力矩提供了一种新方法。

It is significant for equivalence principle test for extended rotating bodies with a torsion balance to measure the internal friction torque of a gyroscope.

利用角动量定理对实验采用的电磁驱动机械陀螺的内部摩擦力矩进行测量，分析了这一摩擦力矩对宏观旋转物体等效原理扭秤方案检验的影响，并就此提出了几项改善措施。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。