查询词典 rolling friction

Analyzing and simulating of the deformation law of the ceramic downspout product after overcoming the shortage of powder material models in the software of MSC. MARC. It shows out the important effects of various factors and the shape of mandril during the process. And it is obvious that the shape of the top mandril has more effects on the process than the bottom.(3) Showing out the important effects of model figure on the flowing of powder and the forming of low-density fields from the analysis. After changing the top of the mandril into spherical shape, an improving model is putting out so that the distribution of stress and strain turns to be even and proper and that the flow rule of powder grains is better.(4) Calculating of the dimensional precision and the cutting ratio of the product and analyzing of the effects of such factors as rubber aging, loading process, mandril, friction etc. on the cutting ratio.

MARC存在的粉末材料模型方面的设计缺陷后，对连铸水口粉末成形件的变形规律及影响因素作用进行了模拟分析，指出芯棒形状对成形件的变形有较大影响，并且芯棒顶部形状与芯棒底部形状相比，对粉末变形有更大影响；(3)分析了成形件出现低密度区域的原因，指出模具形状对粉末流动以及粉末成形件低密度区域的形成有重要作用，提出了密度分布优化改进模型：改进模具顶部形状，并将芯棒顶部设计成球面后，粉末成形件顶部区域的应力、应变分布更加均匀、合理，粉体颗粒流动情况明显改善，低密度区域明显缩小；(4)计算了成形件的尺寸精度及切削率，并指出除模具形状的影响外，充填密度、橡胶模具老化、加载工艺等其他因素对总体切削率也有相当的影响。

Elasticity plunger resume original dimension, the gap between plunger and pump barrel was increased downstroke.Leakage of sucker pump with automatic compensate gap was decreased and pump efficiency was increased upstroke, friction between plunger and pump barrel was reduced downstroke.

下冲程，弹性元件恢复原尺寸，柱塞与泵筒之间的间隙增大，从而实现上冲程减小泵漏失量，提高泵效，下冲程降低了柱塞与泵筒之间的摩阻。

The maximum tangential velocity decreases downwardly and shifts gradually towards the center wall along the axial direction, which are mainly caused by the effects of the friction loss along the wall and the turbulent energy dissipation.

轴向速度沿径向呈明显的线性分布，下行轴向速度沿提升管外壁向封闭罩内壁的径向方向逐渐增大。

Drag through a liquid , however, though similar to friction, is directly related to the speed of an object. The faster an object moves, the more drag force is applied to it, i.e.

上面的代码中涉及到的力，我们是假设已经知道了力的大小并直接给出的值，下面我们来看看一些力的具体计算方式。

That's because the friction of the wheels and track slowly drain energy away from the train.

这是因为轮子与轨道的摩擦力会逐渐削弱车体的能量。

The principle of friction weld parameter measurement for drill pipe is introduced.

介绍了用MSP430F149单片机组成的石油钻杆摩擦焊接中的三个主要参数检测装置的原理、硬件电路、程序框图及部分源程序。

The paper introduces the main structure and feature of the charge/discharge manipulator of friction welding geological drill stem as well as the PLC control system used by the manipulator.

本文介绍摩擦焊接地质钻杆上下料机械手的主要结构特点及其所采用的PLC控制系统，并指出该机械手的二次开发前景。

The fluid flow characteristics of the honeycomb monoliths were also investigated and both press drop and friction factor were obtained.

其次，本文选择了不同几何参数的载体，进行了载体阻力特性的实验研究。

Electromagnetic,dry friction plate,multi-oil immersed plate,centrifugal and vane are just some of the various types of clutch available.

电磁型，干摩擦片型，多重油浸型，离心和轮叶型，这些只是各种类型的离合器中的一些类型。

In particular the business card printing and membership card making and thermalsteam not cleaned up, so that the ink roller drying and printing plate dry friction when idling, lost little dot.

出格是制卡和会员卡制作转机操纵积压而油墨潮湿，使网纹辊与印版空转时潮摩擦，迷失小网点。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。