Analytical solution of pile foundation friction resistance in the collapsible loess area in specific technology 特定工艺中湿陷黄土地区桩基摩阻力的解析解
Sliding friction is independent of the area of surface in contact. 滑动摩擦力于表面接触的面积无关。
We can see that friction creates an area where there is less speed. 我们可以看到,摩擦产生的地方有不足的速度。
With the increase of friction coefficient, the area of high temperature zone and the stress at the inlet of the corner increased; 随着摩擦系数增大,核心高温区面积增大,转角入口区的应力也有所增加;
If indeed the friction coefficient is independent of surface area, then when I tilt them they should start to slide roughly at the same angle. 若摩擦系数真的,与接触面积没有关系,那么两者下滑时的角度,应该基本相当。
The relationship is more complicated on the friction area, friction force and brake moment of the automobile brake. 汽车制动器的摩擦面积、摩擦力、制动力矩的关系比较复杂,成非线性关系。
An intensity analysis was carried out to the friction weld area of turbocharger shaft with ANSYS finite element analysis software. 应用有限元分析软件ANSYS,对涡轮增压器轴摩擦焊区域进行了强度分析。
Effect of rare earth on the internal friction spectrum of the tread area of the BNB rail steel 稀土对BNb钢轨踏面区内耗谱的影响
Prediction of Instantaneous Maximum Temperature in Friction Contact Area by Spontaneous Electric Thermo Couple 用自然热电偶测量值估计摩擦接触的最高瞬时温度
Therefore, it is necessary to increase friction area and make suitable thickness of discs in design. 因此,制动器设计中应尽可能增加摩擦片接触面积,选择合理的摩擦片厚度。
At first, according to the characteristic of HSM, orthogonal cutting model is established, and formation mechanism of cutting zone, forces that chip suffered, friction characteristic of cutter/ workpiece area, and shear angle are analyzed. 首先根据高速切削的特点,建立正交切削模型,分析金属切削层变形机理、切屑受力情况、刀具/工件切削区的摩擦特点以及有关剪切角的计算方法。
Study on the State of Rolling Lubrication and Friction in Deformed Area for Copper Strip 铜带轧制变形区摩擦润滑状态研究
The effects of the ratio of fiber modulus to matrix modulus, friction at the debonding area and the fiber volume fraction on the development of the crack and on the stress concentration factor in the neighboring fibers are systematically studied. 本文还对于纤维基体模量比、摩擦力和纤维体积比对裂纹发展和裂口周围纤维中的应力集中的影响作了系统的研究。
The main friction area on the piston and cylinder is measured and compared, which proves that Ceramic-Mental FGM can decrease the friction and wear between the cylinder and piston. 试验比较结果显示,气缸体及活塞的主要接触面的磨损量很小,发动机功率下降不明显,这表明梯度功能材料在发动机上能够起较好的作用。
Based on the adhesion theory of friction and using real contact area, a formula for calculating static frictional coefficient of sliding bearings is derived. The variation regularity of frictional coefficient is analyzed, and its practical significance is described too. 根据粘着摩擦理论,利用真实接触面积导出了滑动轴承静摩擦系数的计算公式,分析了摩擦系数的变化规律及在实践中的意义。
Different chemical structure of FM can reduce the friction coefficient in all temperature area. 不同化学结构的摩擦改进剂复配使用,可以减低整个温度区的摩擦因数。
FEM Simulation of Friction Distributing Along the Deformation Area in Steel Sheet Rolling 板带轧制变形区内摩擦力分布的有限元模拟
Testing Study of Load Transfer Behavior of Friction Piles in Soft Rock Area of Guizhou Province 贵州软岩地区摩擦桩试验研究
Some analytical solutions of perfect gas unsteady one-dimensional flow with friction, heat transfer and area change 完全气体一元变截面有传热有摩擦流动的一些不定常解析解
Results of stress measurement for piles indicate that the test piles belong to the type of friction pile in the plant area, so design method of taking end bearing pile ought to be changed. 桩的应力测试成果表明:蓟县电厂的试验桩实属摩擦桩类型,从而改变苏方设计以端承桩为主的设计方法。
Test results show that the defects of the said heat~ exchange tubes are mainly located in the superheated~ steam cooling area as the result of the severe vibration of the heat~ exchange tubes and the intense inter~ baffle friction in this area. 解剖检验结果发现:高压加热器热交换管有缺陷的位置主要集中在过热蒸汽冷却区,原因是过热蒸汽冷却区热交换管剧烈振动、隔板之间发生强烈摩擦引起的。
The results show that the plow effect between friction pairs and adhesive area of friction surface could be effectively reduced with incorporation of SiC particles, which decrease the mass-loss wear of composite plating layer. 结果表明:SiC颗粒的加入能有效地降低摩擦副之间的犁沟效应及摩擦表面发生粘着的面积,从而减少镀层的磨损。
The maximum friction force decreases at first and increases later as the angle of belt cord increases, and the static friction force in ground-contact area is symmetrically distributed; 随着带束层帘线角度的增大,最大摩擦力先减小后增大,静态接地时摩擦力呈对称分布;
When serving as the lubricant, MF would maintain at the friction area because of the magnetic force. The lubrication effect is so excellent that MF has been widely used in mechanical sealing and lubrication. 磁性液体作为润滑剂时,能够在磁力作用下保持在摩擦区域中,润滑效果良好,因此被成功的应用于轴承机械的密封和润滑中。
The friction behaviors in the flanges area and die corner radius area during the variable forming speed/ forming loading stamping process are studied by flat plate friction test and stretch bending friction test. 为此,针对拉深成形,分别采用平板滑动摩擦实验和拉弯摩擦实验,研究了变速/变载条件下板料在法兰处和凹模圆角处的摩擦行为。
The friction coefficient of the surface area of the cermet was reduced after nitriding. 氮化处理使金属陶瓷表层的摩擦系数降低。
In order to analysis the wear mechanism of the Cemented Carbide Coating Tool, the friction area of the rake face of the hard alloy coating tool is scanned by Electronic Scanning Microscope and carried on the energy spectrum analysis by Energy Disperse Spectroscopy. 为了分析硬质合金涂层刀具的磨损机理,利用电子扫描显微镜和能谱仪,对硬质合金涂层刀具摩擦试验后前刀面刀尖部摩擦区域进行形貌与能谱分析。
The paper uses Reynolds number to analyse the form of the liquid in the hydro-viscous drive system, research transmission torque of the hydro-viscous drive system rubs who work in mixed friction film cutting area and acceleration area. 本文借助雷诺数分析了液体粘性传动装置摩擦副间介质层流和紊流的流态,研究了液体粘性传动的摩擦片工作在混合摩擦区、油膜剪切区、加速区传递的转矩。
Presently, much study on the friction in the plastic forming area is concentrated on cold forming, especially on sheet forming, but the study on friction in heavy forging forming area even hot-forging forming area is too little. 目前,在塑性领域对摩擦的研究多集中在冷成形特别是板料成形方面,而对大型锻造成形领域甚至热成形领域的摩擦研究很少。