查询词典 torque arm

Three kinds of arm's robust control theorys are designed: the torque control based on FNN controller, the computed torque control with sliding mode compensation and the computed torque control with WNN compensation. FNN syncretizes the reasoning ability of fuzzy control and parameters' self-learning ability of neural networks. It does not depend on the precision of the mathematical model, and can overcome the impact of the uncertainty effectively. So FNN is regarded as the manipulator controller and used to the trajectory tracking of arm control. The computed torque control with sliding mode compensation is designed.

在此基础上，研究了机械手臂的鲁棒控制法，分别设计了基于模糊神经网络的机械手臂力矩控制方法、基于滑模变结构控制补偿的机械手臂力矩控制方法以及基于小波神经网络补偿的机械手臂力矩控制方法，具体内容如下：模糊神经网络融合了模糊控制的推理能力和神经网络的参数自学习能力，它不依赖于对象精确的数学模型，能有效地克服被控对象存在的不确定部分的影响，本文把模糊神经网络作为机械手臂的关节伺服控制器，通过对网络参数的学习训练来调整机械手臂关节的控制力矩，实现对机械手臂的轨迹跟踪控制。

Secondly, the paper is expanded from follow three aspects: the virtual design, the virtual process and the product data managementduring the developing the torque converter. Applying the key technique of concurrent engineering---design for function, design for assemblyand design for manufactureof the method of design for "X", the virtual design of the torque converter is accomplished in CATIA V5. Then the model constitution and the simulation of virtual process of the torque converter is done in CATIA V5, including the model constitution and the simulation of 5-aixe NC virtual process of the vane, the model constitution（material:PVC） of the idler pulley rapid prototypingand the virtual assembly and the motion simulation of the torque converter, etc. 3-D data exchange between various CAD systems is realized by using STEP standard. The lever of classing the character model of the torque converter is given. And the access authorization is set up and given to manage the partners' reading/writing the product data.

应用并行工程的关键技术之一——面向产品全生命周期的设计DFX中面向功能的设计DFF、面向装配的设计DFA和面向制造的设计DFM的方法，在CATIA V5中完成液力变矩器虚拟设计；在CATIA V5中对液力变矩器进行虚拟加工建模和仿真，包括液力变矩器导轮叶片五轴数控加工刀轨建模与仿真、导轮快速成型RP建模、液力变矩器虚拟装配和运动仿真等；采用STEP标准实现多CAD系统之间三维数据交换，提出液力变矩器特征模型的分级标准并对三维模型数据进行分级管理，制定相应的权限等级以规范合作厂家的产品数据管理层次。

A new brushless DC motor DTC scheme was studied to solve those problems associated with direct torque controlof brushless DC motor,such as difficulty to control flux and complexity to estimate torque.The flux hysteresis controller was ignored in the constant torque region and an improved method was proposed to make the estimation of torque easier.The proper stator voltage space vector was selected based on the output of the torque hysteresis controller and the sector which the current rotor flux locates in.

摘 要：针对无刷直流电机直接转矩控制中磁链观测困难、控制复杂等问题，提出了一种应用于无刷直流电机二二导通方式下的新型直接转矩控制方法：在电机基频以下调速时，略去了常规的磁链观测控制环节，改进了转矩计算方法，通过转矩滞环控制选择所施加的空间电压矢量。

By analyzing the engine driving torque characteristics and the transmission inertia torque while speed ratio is changed under transient condition, a new synthetic control algorithm is developed which can approach engine target torque by compensating engine output torque with transmission system inertia torque.

本文从金属带式无级变速传动的传动机理入手，通过建立发动机和无级变速器的速比变化率模型，研究了发动机与无级变速器的匹配控制策略。

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。

An apparatus made by our lab is used for direct measurement of torque of yarns. The torque-twist relation curves, torque-relaxation behavior of several kinds of yarns at room temperature and heat-setting temperature are given. After analyzing the difference of different yarn torque it can be found that the special structures of composite yarns made of polyester filament and wool staple fibers mainly cause the high residual torque.

应用自行研制的直接测量纱线扭矩装置，这里测试数种纱线的扭矩-捻度关系曲线及其在常温和热状态下的扭应力松弛关系曲线，分析相同捻度下各种纱线扭矩差异的根源，发现涤长丝与毛短纤复合纱线的特殊结构是造成复合纱线残余扭矩较大的主要原因。

The power of motor is positive proportion to square root of equality of square pure torque .the pure torque is combined by suspension point torque and balancing weight torque ,so the change of suspension point's motion law and balancing weight offset angle can causes pure torque variation .especially, the suspension motion law is decided by configuration curve of hinder heaven sheave .so the paper has emphatically studied and analysis the law that the configuration curve of hinder heaven sheave brings the change of pumping unit energy-saving .

电机功率与减速器曲柄轴净扭矩均方根成正比，减速器曲柄轴净扭矩是由悬点载荷产生的扭矩和平衡重产生的平衡力矩合成的；改变悬点运动规律和平衡重的滞后角可以引起净扭矩的变化，其中悬点运动规律是由后天轮曲线决定的，因此，本文依据此原理着重研究分析了后天轮曲线影响抽油及节能的变化规律。

This thesis proposed the design and implementation of an ASIC for the motor control with DTC technology. Note that this ASIC is implemented by cell-based Design style with Verilog language.The basic principle of the Direct Torque Control is to select the switch sequence of the inverter. Those switches will control the magnetism and torque of the stator, to induce a fast response of the induction motor. Furthermore, the d-q axle's static coordinate, which is transferred from both the three-phase current and voltage, is used to compute the stator's magnetism and torque. By comparing with original values, those magnetism and torque will be calculated and set to new data. Then the switching table and the hysteresis controller are decided with the new data to generate a voltage vector and to control the stator magnetism and torque.

直接转矩控制的基本原理为经由侦测马达定子磁通与转子转速，来适当的选择变频器功率电晶体的切换状态，以获得快速且不易受外在环境影响的马达控制响应；首先，根据量测三相电流与利用变频器的切换状态取得马达的三相电压，将其转换至d-q轴静止座标，然后藉此估测马达的磁通量与转矩量，再分别与侦测的定子磁通量和转矩量比较后，得到定子磁通量与转矩量比较的结果，再利用DTC电压向量切换表(DTC Voltage Vector Switching table)，依定子磁通与转矩的比较值及马达所在的角度位置，来选择一个适当的电压向量，进而依切换顺序来激发功率电晶体，达到控制感应马达的目的。

Torque is the torque in the physics of small, equal to the product of force and lever arm, the international unit is Nm Nm, In addition we can also see kgm, lb-ft of torque of this unit, as a result of G = mg, when g = 9.8 when, 1kg = 9.8N, so 1kgm = 9.8Nm, and the foot-pound is lb-ft of torque imperial units, 1lb = 0.4536kg; 1ft = 0.3048m, can be calculated 1lb-ft = 0.13826kgm.

扭矩在物理学中就是力矩的大小，等于力和力臂的乘积，国际单位是牛米Nm，此外我们还可以看见kgm、lb-ft这样的扭矩单位，由于G=mg，当g=9.8的时候，1kg＝9.8N，所以1kgm＝9.8Nm，而磅尺lb-ft则是英制的扭矩单位，1lb=0.4536kg；1ft=0.3048m，可以算出1lb-ft＝0.13826kgm。

The inner C-arm is suspended upon at least one wheel construction disposed in the support C-arm. The inner C-arm may be automatically driven annularly outside of a first end of the C-arm support and into a second end of the C-arm support to close a gap normally found in conventional C-arm X-ray devices.

该内C臂环形地自动地被驱动到该支承C臂的第一端的外侧并且进入该支承C臂的第二端，由此封闭常规C臂式X射线系统中通常存在的间隙。

He's a pretty westernised kind of guy.

他是一个非常西化的人。

National spirit is the moral kingpin for a nation to realize common ideal and goal.

一、中华民族精神的基本内涵党的十六大报告指出：在五千多年的发展中，中华民族形成了以爱国主义为核心的团结统一、爱好和平、勤劳勇敢、自强不息的伟大民族精神。