查询词典 rolling friction

Rhode S M A mixed friction model for dynamically loaded contacts with application to piston ring lubrication Friction and Traction,westbury house , 1979,null

张移山%孔宪梅%陈大融关于内燃机缸套与活塞环磨合过程的数学模型机械科学与技术， 1997，01

The generator loss is composed of iron loss, bearing friction loss, bushing friction loss and windage loss.

发电机损失由铁损，轴承摩擦损失，套管摩擦损失和风阻损失组成。

The invention relates to amianthine cat whisker-free friction material and the preparation method thereof, and belongs to the friction material industry technical field.

一种无石棉晶须摩擦材料及其制备方法，属于摩擦材料行业技术领域。

It was concluded by the X-ray photo spectroscopy that the friction performance of metals could be improved by the lube containing nanosize CaCO3 particles due to the coaction of three matters CaCO3, CaO and Ca during friction process.

通过X射线光电子能谱法得出：含有纳米碳酸钙粒子的润滑油，在摩擦过程中通过碳酸钙、氧化钙、钙三种物质共同作用提高金属的摩擦学性能。

Treating with coils as aeolotropy, this paper brings forward a set of mathematical mode for computing internal stress distribution of coil in the process of coil coiling, in which some factors are taken into account, such as the transverse distribution of shape, crown and curl tension of the strip, the friction between the strip and the reel, the friction between strips, and etc. Because the reel shrinkage and the inner circle of the strip losing radial restrain and circumferential restrain can induce interlayer slipping and the change of the whole coil compactedness , the assumption concerned ——"virtual reel" in the process of coil uncoiling is put forward, which takes the form of slow action to express the uncoiling process and, therefore clearly simulates the variation course of internal stress distribution of coil in the process of coil uncoiling.

考虑到带材板凸度、卷取张力的横向分布以及带材与卷筒之间、带材与带材之间的摩擦力等因素的影响，并将钢卷按各向异性体处理，提出一套计算卷取过程中钢卷内部应力分布的数学模型；同时考虑到卸卷过程中由于卷筒的收缩，钢卷内圈失去径向和周向约束而引起层间滑移及整个钢卷紧密程度发生变化，提出钢卷卸卷过程中有关&虚拟卷筒&假设，将卸卷过程以&慢动作&的形式表示出来，清楚地模拟出卸卷过程中钢卷内部应力分布的变化历程。

It is clear that when the book was attached to the multifraction run and electro-optical control at run time, motor brake is frequently used for closing the case of separation action, so that, if the brake friction wheel every time suck-journeyuva or slightly slightly the lawyers'gowns so that it tends to concentrate on local contrate friction to the corresponding axis wheels, and an increase in the work of the resistance of the motor, which in turn lead to a book should be sent along to run slowly.

很较着，当书夹在独不宾运行和光电把持运行时，电机的制动器是在屡不主息呼分别离动息的环境下举行的，这样，当制动器上的摩擦轮每不宾呼分的旅程稍有不到位或稍有方向时，不离便当使其方向的部分端面摩擦到对应的轴轮上，而补充电机的工息阻力，进而引起书夹运行速率减缓。

A friction compensation algorithm based on the feed-forward and fuzzy theory is implemented after analyzing the friction characteristic of HIT-1 dextrous robot hand.

在基于指尖力的阻抗控制中，定性分析了摩擦力对自由空间中的位置跟踪和约束空间中的力控制的影响，并结合HIT-1机器人灵巧手摩擦力的具体特点，提出了前馈加模糊的摩擦力补偿方法。

Cu-C composite is one of the most potential materials for pantograph slide plate, which is an important component of pantograph system in locomotive. The principle of wettability between Cu and C was investigated in this paper. The element of Mo was selected to improve the wettability between Cu and C. The fabrication process of cold compression sintering fiber reinforced Cu-C composite and its effect on the composite property were studied. The wear and friction mechanism of Cu-C composite was investigated initially by electriferous friction test.

Cu-C材料是目前最具应用前景的电力机车受电弓滑板用材料之一，本文研究了Cu与C之间的润湿原理，利用Mo元素有效改善了Cu与C之间的润湿性；并对冷压烧结法制备纤维增强Cu-C复合材料的工艺过程及其对性能的影响进行了研究；通过带电摩擦试验对Cu-C复合材料带电摩擦磨损机理进行了初步探讨。

By designing different test rigs, choosing different friction materials and performing a large amount of tests, the property of friction with respect to the variation of normal loads, relative velocities and lubricational conditions is examined.

通过设计不同的测试装置，采用不同的摩擦材料，通过大量的实验，测试并分析了摩擦力随接触界面间正压力、相对速度、润滑状态变化的情况，研究了摩擦力在预滑动和宏观滑动阶段的静态及动态摩擦特性，发现并提出摩擦过冲概念。

Friction composite, hBN, CPC, friction and wear behavior, lubricative films

煅烧石油焦及六方氮化硼对摩阻材料摩擦磨损性能的影响。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48