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friction moments
相关语句
  摩擦力矩
     Calculation Model of Friction Moments in Sealed Ball Bearings
     密封球轴承摩擦力矩计算模型
短句来源
     Based on experimental test with M10 lock nut, it shows that the self-locking friction moments all increase at different recovery annealing temperature's intervals. When annealing temperature is below 573 K, the increment of the self-locking friction moments is less than 25%. When interval temperature is 50 K,the increment of the self-locking friction moments is above 25% for four times, and the lock nut has good use repeatability.
     使用M10螺母进行试验测试,螺母在不同回复退火温度间隔条件下的自锁摩擦力矩均有所增大,温度低于573K时,自锁摩擦力矩增加量均小于25%,当回复退火温度间隔为50K时,自锁摩擦力矩增加量有4次在25%以上,该新型螺母重复使用性能较好。
短句来源
     The structure of sputtered MoSj and the interface between the film and substrate were investigated by means of XDM and AES. The tribological properties evaluation of sputtered MoS2, the friction moments and endurance life measurements of the ball-bearings lubricated with sputtered MoS2 have been taken respectively,,
     用X-射线衍射仪和俄歇能谱仪研究了溅射MoS_2膜的结构和与底材间的界面,评定了溅射MoS_2的抗摩性能并测定了溅射MoS_2膜润滑的滚珠轴承的摩擦力矩和耐久寿命。
短句来源
     The friction moments acting on the lens plate in plane lapping process are investigated according to the actual arrangement of the diamond pellets and the actual distribution of pressure in the contact area through mechanical and kinematics simulation analysis.
     在考虑了磨具上金刚石丸片的实际排列以及接触区压强的实际分布的前提下,运用力学和运动学的方法,模拟分析了在固着磨料平面研磨加工中镜盘所受的摩擦力矩
短句来源
     The calculation methods of friction moments for two types of friction couple of the dish and floating inlay friction block as well as its overloading protection device are introduced.
     论述了该种装置的盘式和浮动镶块式两种结构所能产生的摩擦力矩 Ma 及所需保护的力矩 Mq的计算方法。
短句来源
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  相似匹配句对
     On Friction
     谈谈摩擦力
短句来源
     Calculation Model of Friction Moments in Sealed Ball Bearings
     密封球轴承摩擦力矩计算模型
短句来源
     Moments of Love
     爱的时刻
短句来源
     5.friction;
     5 减阻 ;
短句来源
     Moments Of love
     真爱永恒
短句来源
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  friction moments
Closed differential circuits for measuring effective friction moments in gear mechanisms
      
The most widespread methods of those examined by us for measuring small friction moments consist at present of the pendulum and calibrated spring methods for laboratory research, and of the self-braking method for industrial use.
      
The considered parameter uncertainties are friction moments in the links and friction between the end effector and the manipulated object, as well as nonlinear dynamics, which are difficult to characterize.
      
Our dealer provided me with the catalog data that sets these friction moments.
      
New theoretical advances in modeling friction have been developed that allow better prediction of rolling element bearing friction moments.
      


The doffing tube has a great influence on twist level inside the rotor.The spin- ning performance of the rotor spinner is dependent to a certain extent on the doffing tube design,which some research workers have made a number of experimental inves- tigations of its influence upon the spun-yarn properties.However,no publication which deals with the numerical analysis of the doffing tube design for false twist level inside the rotor has been found.In this paper the author has made a numerical analysis of the moment...

The doffing tube has a great influence on twist level inside the rotor.The spin- ning performance of the rotor spinner is dependent to a certain extent on the doffing tube design,which some research workers have made a number of experimental inves- tigations of its influence upon the spun-yarn properties.However,no publication which deals with the numerical analysis of the doffing tube design for false twist level inside the rotor has been found.In this paper the author has made a numerical analysis of the moment of friction arose from doffing tube during the processes of spinning and,also,calculated by means of numeration the final yarn tension when yarn is passing through the friction zone of the doffing tube.The first part of the paper deals primarily with the calculation of the warp angle,while the second main- ly focuses on analysis of the influence of the different doffing tube designs and spinning parameters on the amount of the friction moment and the final yarn ten- sion.In the end the author makes a discussion about the application of these theore- tical results to practical production and at the same time suggests some further research work to be done afterwards in this field.

气流纺纱机中的阻捻盘对气流杯内纱臂上一段纱的捻度高低有很大影响。也可以说,气流纺纱器的纺纱性能在一定程度上与阻捻盘设计有关。一些研究工作者曾就阻捻盘设计对成纱质量的影响进行了若干实验研究,然而有关阻捻盘设计对杯内捻度影响的数值分析尚未见有正式文章发表。本文就是借助电子计算机对阻捻盘摩擦区内纱条所受的摩擦力矩以及纱线离开摩擦区时的最终张力进行了数值分析。文章的第二部分主要是计算了在不同阻捻盘设计条件下的纱线与阻捻盘摩擦表面间的包围角大小;第二部分着重计算与分析了不同阻捻盘设计和纺纱工艺条件对摩擦力矩与最终张力值的影响。最后,就本文所得到的若干理论上的结果在生产实际中的应用以及本文所涉及的这一领域里的进一步工作进行了若干必要的讨论。

By setting up a friction moment observer and using feedforward control, the effect of friction moment in test table is compensated. As a result, the accuracy of the test table is improved and thus it offers a new way for developing new types of test tables with simple structure and better performance. This dynamic compensation method also can be applied to other similar control systems.

本文论述了通过设置摩擦力矩观测器和引入前馈控制的方法,对精密转台中的摩擦力矩进行动态补偿,提高了转台精度井为研制结构简单而性能良好的新型转台提供了途径。

In this thesis, the finite element numerical analysis about the performances, such as load carrying capacity, static stiffness, oil flow, friction moment and attitude angle, of a four-pad and a four-pocket hydrostatic journal bearings with position-sensing inside restrictors with double row of the feed pockets is presented. The hydrodynamic effect caused by the journal rotation is considered. The test measuring the above-mentioned performances of a four-pad bearing is conducted.

本文用有限元法对双列进油式位移敏感内部节流静压轴承包括动压效应在内的静态特性进行了数值分折(四垫、四腔式)和试验研究(四垫式),讨论了承载量、静刚度、流量、摩擦转矩和偏位角等性能的特点,主要参数的选择及加载角的重要性并对已有的垫式解析公式进行了验证和修正。

 
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