查询词典 sliding friction

The topographical parameters have been analyzed by taking into account the thermal effect during the friction process. As the results, three kinds of typical topographical features have been observed for the worn surfaces of C G iron with various P content. Namely, C G iron with 0.05% P, 1.30% P, and 0.70% P show worn surfaces characterized by groove ridge, peak pits and their combined topography. The C G iron specimen with peak pits type worn surface topography showes the lowest wear rate and highest friction coefficient, while that with groove ridge type worn surface topography shows the highest wear rate and lowest friction coefficient. The groove ridge type worn surface has a relatively large value of surface height deviation and void volume ratio and negative large value of skewness, which is contrary to the peak pits topography.

结果表明：度销磨损表面主要呈现犁沟型、孤岛型及二者的混合型3种形貌特征，其中具有孤岛型磨损表面形貌特征的试样的摩擦系数较高，磨损率较低；而具有犁沟型磨损表面形貌特征的试样的摩擦系数最低，磨损率最高，分析表面形貌参数发现：犁沟型表面形貌具有最大的表面高度偏差和表面空隙率及高负值的表面高度分布参数；而孤岛型表面形貌的表面高度偏差和表面空隙率最小，表面高度分布参数为高正值。

The test curve of side skin friction resistance of pile is simplified linearly. The distribution of skin friction resistance is controlled by two factors: the maximum value of negative skin friction resistance and depth ratio of neutral plane. Thus, the simplified linear calculation model of rigid pile composite ground is established.

作者还根据桩体侧摩阻力的试验曲线，进行线性简化，由桩顶的负摩阻力最大值及中性面深度比控制全桩长的侧摩阻力分布计算，从而，建立了刚性桩复合地基桩体侧摩阻力线性简化计算模型。

Aiming at the friction problem of metal deformation in stretch reducing course, a friction model has been established to solve the contact friction problem in rolling course simulation accurately.

针对张力减径过程中金属变形的摩擦问题，建立了摩擦模型，比较准确地解决了轧制过程仿真时的接触摩擦问题。

Main job is to guarantee the scraping interaction and equipment on both sides of the friction surface or can obtain higher precision and accuracy, precision and shape accuracy, precision and contact transmission because of good lubrication, manual and repeatedly is worthy, large amounts of wind, time-consuming, scraping the time needed for different devices vary, such as boring slider and slide block wind profiling, between the match before measuring clearance between the original value, and then according to the technical requirement to measure the value of time and scraping scraping, then apply DanFen red on the slider, manual let slip on the slide seat back and forth, they do straight-line movement between full contact and friction, reoccupy scraper scraping friction creates the contact point, so repeatedly, until the technical requirements for the match, single within 2 days, must blow to the boring if all the time to work with wind, a half month is required.

刮削过程。刮削工作主要是为了保证设备相互接触并摩擦的两面间能获得较高的尺寸精度、形状精度、位置精度、接触精度、传动精度和良好的润滑，因是手工操作且需反复配刮，故工作量大，耗时较长，设备不同，刮削所需时间也各不相同，例如镗床上滑座与下滑座间的配刮，刮削前先测量出二者之间原有的间隙值，然后根据工艺要求测算出需刮削值及每次的刮削量，再将红丹粉涂于上滑座之上，手工让上滑座在下滑座上来回做直线运动，使它们之间充分接触和摩擦，再用刮刀刮削摩擦产生出的接触点，如此反复多次，直至技术要求范围之内，单此项配刮需2天左右，若对于整个镗床所有配刮工作的时间总和，则需半个月左右。

In the course of FEM model building, tensile test experiment is taken to work out the real stress-strain curve. Ring compress test is also done in this paper, through which the friction coefficient is worked out and the friction mechanism and relevant friction model for tube stagger spinning is studied. The experiments ensured the veracity and reliability of the FEM modeling.

建模过程中，通过材料拉伸试验测定了旋压材料00Ni12Cr5Mo4TiAlV时效钢的真实应力应变曲线；利用圆环镦粗试验测定了材料在不同润滑状态下的摩擦系数，并对强力旋压的摩擦性质和摩擦模型的选择进行了研究，确保了建模关键参数的准确性和可靠性。

At the aspect of the fade and the average wear, the bakelite modified by the chemigum was better than the bakelite modified by the bunas; When mixing the kevlar fiber and steel fiber their"cooperation effect"happened easily, especially, in the proportion of one to four, the friction materials had the better tribology performance; It was demonstrated that Sb2S3 played a role of binding adhesive of friction materials in high temperature, which could reduce the content of the agglomerant, but it was a higher price material, mixing the petroleum powder and CuS in appropriate proportion would replace it in friction

应用造粒技术，采用颗粒包层的方法，改变摩擦材料内部结构，使摩擦材料由配方比例设计到配方与结构综合设计的转变成为可能，将为研制新型摩擦材料探索出一条新的思路。

The results showed that under the given experimental conditions,the surface layer with richiron and poor copper was formed in the surface worn region of the semimetallic friction material,the depth of organic ingredient pyrolysis caused by friction heat in worn surfaces was atout 0.35mm; the semimetallic friction material containing 15%-20%of Cu had better wear-resistance,and can form a even and continuous transfer film of copper; crack peeling was the importantmechanism of the counterpart.

半金属摩擦材料具有摩擦系数稳定，耐磨性好，对环境污染小和对偶件表面损伤小等优点，但其在摩擦热和界面应力等因素作用下，表层会发生弹性变形，塑性变形，元素扩散，组分转移和摩擦化学反应等现象，因此，利用扫描电子显微镜X射线能量色散谱和差热－热重分析，对铜纤维增强的半金属摩擦材料与灰铸铁滑动摩擦表面层的特性作了分析研究，考察了表面层特性对摩擦损行为的影响。

At present, the company mainly produces clutch friction plate motorcycle, engineering machinery brakes, motor friction films, mower, broken sticks machine, automobile air conditioning compressor, electric hoist, etc. special friction material.

目前，公司主要生产摩托车离合器摩擦片，工程机械用刹车片、电机摩擦片，割草机、碎枝机、汽车空调压缩机、电动葫芦机等特种摩擦材料。

The effect of temperature on the friction and wear performances of multi-fibers reinforced automotive brake is investigated using XD-MSM tester. The mechanism of friction and wear is analyzed by observing the surfaces of friction material worn at different temperatures by means of scanning electron microscope.

利用XD-MSM型定速摩擦试验机，考察了摩擦材料的摩擦系数和磨损率随温度变化的情况，并且通过扫描电镜观察了摩擦材料在不同温度下磨损后的表面形貌，分析其摩擦磨损机理。

Its friction type clutch working principle is when power transmits the export and input end design on route have is active and driven move two pieces of friction plate, the conduct that passes through the combination of friction plate to control power and cut off.

摩擦式离合器其工作原理是在动力传递路线上的输出和输入端设计有主动和从动两块摩擦盘，通过摩擦盘的结合来控制动力的传导和切断。

These rules reflect some inherent feature of self and nonself, and they are the basic detection criterion of GECISM.

这些规则反映了"自我"和"非我"的内在特征，是GECISM进行"非我"检测的判据。

Until today, the media from China and the outside world still uses the term "Post 89". Regardless to whether it is for commercial gimmick or convenience, everybody still remember "Post 89", a term which carries a strong Cantonese accent.

时至今日，国内外艺术媒体还是在沿用&后八九&这个称谓，不管当初是为了商业噱头还是容易上口好记，反正大家现在是记住了&后八九&这个广东口音很重的词。