查询词典 conical friction rlutch

The highest heat transfer coefficient for air flowing in the nine 3-D IFT with staggered arrangement fins is No9 tube. In the turbulent region, the heat transfer coefficient of No9 tube is a factor of 10.36 compared with smooth tube, and its thermodynamic performance coefficient is as high as 6.49; The average Nusselt number in the most superior 3-D IFT with staggered arrangement can be increased by about 1.04 times in the laminar flow, and 6.38 times in the transitional flow as compared with that in the smooth tube. The friction factor between fluid and tube wall can be 0.96 times in laminar flow, and 12.68 times in transitional flow as compared with that inside the smooth tube.

在进行实验的九根肋叉排三维内肋管中，换热最强的No9管与光管相比，在紊流区的换热强化比平均可达10.36倍，阻力增大比约为4.06倍，其热力性能系数高达6.49；在过渡流区的换热强化比平均可达6.38倍，同时阻力增大比约12.68倍；在层流区的换热强化比为1.04倍，而阻力增大比仅约0.96倍。

Mechanical model Tube expansion Slipping friction

力学模型；管材胀形；滑动摩擦

It can be used to weld aluminum alloys and titanium alloys, which are difficult for fusion welding. It especially has great potentials in friction welding of non-axisymmetric components.

它可以焊接通常用熔焊方法难以焊接的铝合金、钛合金等，尤其是在非轴对称焊件的摩擦焊中拥有巨大潜力。

Although the residual distortion of 6056 Al alloy sheet after friction stir welding is smaller than that after fusion welding, it is still a significant defect for the assembly and application of welded structure.

大尺寸6056铝合金薄板经过搅拌摩擦焊接实验后出现了严重的面外变形，虽然变形程度小于熔化焊结果，但已经影响到被焊薄板的装配和使用。

The influence of train running speed, wheel-rail friction coefficient, vehicle load, track geometric irregularity, partly load, gauge and the shape of wheel tread on derailment was emphasized.

论文重点分析了车辆运行速度、轮轨摩擦系数、车辆载重、轨道几何不平顺、偏载、轨距大小、车轮踏面形状等因素对脱轨的影响。

I think I will be safe in saying that any gains made with the 2 props will be more than likely countered by all the losses through friction in the bearings and the gearcase that I'm going to make.

我想我会是安全的说，任何收益与二道具，将超过可能反击，所有的损失，通过摩擦，轴承和gearcase说，我要去。

To further improve the precision of sizable parallel 6-axis force platform with gemels the basis of present manufacture and calibration techniques, the paper adopts the sign function, and presents the friction model of platform with Stewart structure based on the screw theory and theory of influence coefficient.

在已有制造工艺及标定技术基础上，为进一步改善大型铰接并联六维测力平台的测量精度，本文基于螺旋理论和影响系数原理，引入符号函数建立了Stewart结构大型铰接六维测力平台的摩擦模型。

Mounted on nearly friction-free gimbals, the gyro can turn horizontally through about 180 degrees.

装在近摩擦免费gimbals ，陀螺仪可以把横向通过约180度。

From the experiment and analysis, it can be seen that friction limits realization of high accuracy electro-hydraulic position servo system, movement of any gimbal brings disturbance moment to servo system of other gimbals and the disturbance moment causes error, and, resolution ratio error and setting error of feedback measurement element are directly added to servo system output.

通过实验和仿真可以看出，摩擦阻碍了转台电液位置伺服系统商精度控制的实现，任何一个框架的运动都会对其余框架的伺服驱动系统产生干扰力矩并引起伺服系统误差，反馈测量元件的分辨率误差和安装误差直接反映在伺服系统输出上，对伺服系统的精度有直接影响。

Emphasis is placed on analyzing the influences of friction characteristics on hydraulic motor, dynamic coupling between gimbals, resolution ratio error and setting error of feedback measurement element on accuracy of electro-hydraulic position servo system for a certain simulation turntable.

针对具体的仿真转台电液位置伺服系统，着重分析了液压马达摩擦非线性、框架间动力学耦合、反馈测量元件的分辨率误差和安装误差对转台电液位置伺服系统精度的影响。

In other research, chondroitin is being investigated for use in several other conditions.

在其它研究，软骨素被调查用於几个其它情况。

They would make fun of him for having to work.

他们拿他的工作来开玩笑。