The reason of the failure in the axes and the state of the bearing force are analyzed, and an effective method to improve the screw's capacity bearing unidirectional torque is given. 分析了螺杆芯轴的受力和失效的原因,提出了一种有效地提高轴承受单向扭矩能力的方法。
This paper presents the system theoretical analysis and the effective application method for basic principle of maximum torque tension control, direct compensation for dynamic tension, and effective smooth switching method between the two section of tension. 对该冷轧机最大力矩张力控制基本原理、动态张力直接补偿及2段张力控制平滑切换方式进行了系统的理论分析,并给出了有效的实现方法。
Based on Controller Area Network ( CAN), we have fully utilized the characteristic of this industrial control network, and have realized the effective measurement to the goal torque. 并基于控制器局域网(CAN)总线,充分利用了其工业控制网络的特点,实现了对钻杆扭矩的有效测量。
Analysis on effective factors of spinning pump power and torque 长丝计量泵功率和扭矩的影响因素分析
The results showed that EGR can reduce NOx emission under various operation conditions, but the effective power ( Pe), the effective torque ( Me) and the effective gasoline consume rate ( ge) will be affected. 结果表明:各种发动机工况下的EGR都能降低NOX排放,但是发动机的有效功率Pe、有效扭矩Me和有效耗油率ge会受到不同程度的影响。
In synchro-compensations the determined passive position synchro-compensation system is designed and simulated through computer. The results show that this method is effective to eliminate the strong disturbance torque of the loading system. 在同步补偿方案中,对所确定的被动式位置同步补偿系统进行了设计和计算机仿真研究,结果表明此补偿方案对克服加载系统的强干扰是有效的。
Another is how to design an effective force/ torque generator to make an operator feel the telepresence force that the slave arm will receive from the environment during tasks. 二是如何把从机械手在异地与环境的作用力高保真地传递给本地的操作者,使之获得如临其境的力觉临场感。
This model offered a simple and effective method for predicting the drag and torque of drilling string. 该模型为预测钻柱摩阻扭矩提供了一个快捷准确的方法。
Based on theoretical analysis, the effective methods to overcome the disturbance torque are put forward. 基于理论分析的结论,给出了克服多余力矩的有效方法。
The experimental results show that the IV theory is more effective and the torque sensor can match the requirement of the light weight arm system. 实验结果表明,辅助变量法具有更好的补偿作用,设计的力矩传感器满足轻型臂系统的要求。
First, in the thesis some effective control methods were introduced to eliminate the surplus torque. Then the principle of surplus torque was analyzed in detail, and some factors that influenced the surplus torque were given. 论文从介绍以往消除多余力矩的方法开始,分析了多余力矩的产生原理以及影响多余力矩的因素。
Effective Exploitage of the Reluctance Torque and Its Predictive Control System on Permanent-Magnet Synchronous Motors 永磁同步电机磁阻转矩的有效利用及其预测控制系统
An effective method of eliminating disturbance torque in electrohydraulic servo load system 消除电液伺服加载系统多余力的有效方法&速度补偿法
Under asymmetrical voltage, will produce the current of negative phase-sequence will be produced in motor. The current of negative phase-sequence the torque of negative phase-sequence to make generator wastage increase, loss of efficiency, effective torque decrease, and make the motor vibrate. 在不对称电压下运行时,电动机中将产生负序电流,负序电流将产生负序转矩,从而使电机损耗增加、效率降低、有效转矩减少,同时有可能引起电机的振动。
The theory analysis and test study are done for the main influencing factors of the friction torque of the bearings, and the some effective methods are put forwards to reduce the friction torque of the bearings. 通过对航天轴承摩擦力矩的主要影响因素进行理论分析和试验研究,提出了降低轴承摩擦力矩的一些有效措施。
It is found that the torque pulsation is mainly caused by the fluctuation of the instant input electrical power, so the more effective way to reduce the torque pulsation is to adopt a drive model which can reduced the harmonic component of the input eletrical power. 研究表明,步进电机中系统磁场储能的变化对瞬时转矩的影响较小,转矩波动主要是由输入电机的电功率的波动决定的,减小电机转矩脉动最有效的途径在于优化电机的驱动方式。
The experiment results show the control system is effective to reduce the motor torque ripple, and it can improve the stability of the switch reluctance motor drive system. 通过模拟实验比较证明,该系统可有效降低转矩脉动,提高电机驱动系统的稳定性。
SVPWM technology is effective to reduce the torque ripple, only one speed PI regulator in the system accelerate the develop process. SVPWM技术能有效减小转矩脉动,且系统仅有一个速度PI调节器,方便了调试。
Through the analysis of magnitude and frequency spectrum of the magnetic field of motor, main components influencing torque ripple are found. Effective methods of suppress motor radial magnetic pull and torque ripple are proposed. 通过频率谱分析,发现了影响转矩脉动的主要频率成分,并且提出了几种有效抑制不平衡磁拉力和转矩脉动的方法。
In this process, using nearly circular paper of the space voltage vector flux to replace the traditional hexagonal space voltage vector flux, which is more effective in reducing the torque ripple and content of current Harmonic. 在此过程中论文中采用近似圆形磁链的空间电压矢量的选择方案来代替传统的六边形磁链的空间电压矢量的选择方案,这样更有效地减小了转矩的脉动以及电流谐波的含量。
The simulation results can be seen from the direct torque control and effective control of the SRM torque ripple, thereby reducing the electrical noise. 从仿真结果可以看出,直接转矩控制抑制了SRM的转矩脉动,降低了噪声。
However, the CFD performance prediction synthesizes the changes of working condition and the particular details of inside flow; it will produce a better believable result, and provide an effective tool for torque analysis and calculation. 而采用CFD的性能计算法综合考虑了工况变化和内部流动状况,可以得到较好的预测结果,可对制动力矩提供行之有效的分析计算。
Vector control method is adopted in the PMSM to achieve the accurate and effective electromagnetic torque control. 永磁电机采用矢量控制方法实现对电磁转矩准确有效的控制。
Mathematical models of system components are introduced. Maximum power point tracking ( MPPT) is realized by effective electrical torque control strategy. Closed-loop current control system using rotor flux oriented control strategy is designed. 介绍了系统各组成部分的数学模型;确定了通过对发电机电磁转矩的有效控制实现最大功率追踪的策略;设计了基于转子磁场定向的电流闭环控制系统。
After production operation, the system was proved to play an effective role on torque quality control and can improve the vehicle quality in GA line. 该系统经过实际的生产运行,扭矩质量控制效果明显,进一步提高了总装线汽车产品的质量。
Experiment and simulation results show that the proposed methods are effective for increasing motor output torque, and the results verify the validity of the theoretical analysis. 实验和仿真结果表明,文章所讨论的方法有效的提高了弱磁区电机输出转矩,所得结果验证了理论分析的正确性。
Therefore, thread link torque control is very important to the vehicle quality. The vehicle manufacturing enterprises are researching a effective way to control the torque all along, including state torque controlling and dynamic torque controlling. 因此,螺纹联接扭矩控制对车辆整体质量至关重要,汽车制造企业一直在研究扭矩控制的有效途径,常见的包括静态扭矩监控、动态扭矩监控等。
From the analysis of the join force and position control used to solve the effective driving force and the joint driving torque, a 6-order control equation is obtained is found. 进行混合力与位置控制分析,求解液压执行元器件有效驱动力与关节驱动力矩,得出6阶的控制方程。
By adding the harmonic harmonic part or not, the comparison of the results of simulation and experiment showed that the algorithm was effective to suppress harmonics and reduce the output torque ripple of the high-power PMSM system. 通过加入谐波抑制环节与未加入谐波抑制环节调速系统的比较仿真及实验,验证了该算法对抑制大功率永磁同步电机运行谐波和减小永磁同步电机输出电磁转矩脉动的有效性。
The influence of the main parameters in the kinematic model to the average effective torque is analyzed, which provides a theoretical basis for further analysis of the structure of power cylinder. Fifth, ANSYS workbench is used to optimize the connecting rod. 分析了运动学模型中主要参数对平均有效转矩的影响。