动摩擦

由于时间的关系，本文没能实现制动器在制动过程中动摩擦系数和静摩擦系数之间的转换关系问题，所以没有仿真出制动器的颤振现象；

Because of insufficient time , this paper does not implement switch between dynamical friction coefficient and a static one , then no harsh can be simulated .

滑动接触时，动摩擦系数Uk的定义是摩擦力与法向力的比率。

For sliding contact , the coefficient of kinetic friction Uk is defined as the ratio of the frictional force to the normal force .

经过2500℃处理的C／C材料，不仅刹车过程平稳，湿态平均动摩擦系数衰减少，而且磨损率小。

After C / C composites were treated under 2500 ℃, they had smooth brake process and small wear , and their average dynamic FC was slowly decreased in damp condition .

LZ系列干式气动摩擦离合器故障原因分析及对策

Analyzing Reasons and Countermeasures of the Malfunction of LZ Series Dry Pneumatic Friction Clutch Zhenhua Machine Factory

重点讨论了相对稳定期动摩擦因数的平均值μAV、标准偏差σ以及过渡期时间t和初始值μ0对法向压强pn的变化规律。

Discussions are focused on laws with respected to pressure Pn of the mean Uav > the normal deviation a of friction coefficient in relatively steady period , as well as the time of transition period t and the initial value Uo .

讨论了PDME对HDPE的摩擦性能及加工性能的影响，当加入5wt%PDME时，共混物的动摩擦系数μ从0.28下降到0.12，同时在加工时使流变仪扭矩和电流明显下降。

Effect of PDME on properties of HDPE was studied . It is considered that addition of 5wt % PDME to HDPE will make dynamic friction coefficient u decrease from 0.28 to 0.12 and also decrease torque and current in extruding .

振子共振时其动摩擦系数与静摩擦系数之比降为～0.1。箝位振子的激励电压仅为±80V（峰峰值）。

When the vibrator is in the resonance state , the ratio of moving friction coeff cient to static one will decrease to-0.1 . The driving voltage of position-gripped vibrator is only ± 80V ( Vp-p ) .

涂层显微维氏硬度HV（0.5N）∶680~850，动摩擦因数小于0.15，具有干膜润滑性能，耐5%中性盐雾试验500h，综合性能优异。

The hardness of the coating reaches 680 ~ 850HV0.5N , the dynamic coefficient of friction of the coating is less than 0.15 , and having the permanent dry lubrication . It can endure 5 % neutral salt spraying test for 500 hours . The synthesis performances are excellent .

气动摩擦离合器与制动器动作协调性的研究

Research on acting coordinate characteristics of pneumatic friction clutch and brake

纱的动摩擦试验法：纱对金属

Testing method for kinetic friction of yarn : yarn against steel

锥面钢领钢丝圈动摩擦系数的计算

The Calculation of Kinetic Friction Coefficient of Conical Spinning Ring and Traveller

非冻结合成模型冰的动摩擦系数

The dynamic friction coefficient of materials for ice modeling

回转机械转动惯量和动摩擦力矩测试方法

Study on measuring method of rotational inertia and dynamic friction moment of slewing gear

舵机传动机构静动摩擦力矩测控系统设计

Design of Measurement and Control System of Static-Dynamic Friction Torque of Helm Drive Mechanism

动摩擦接触问题速率型变分形式及等价性

The Rate-version Variational Formulation of Dynamic Frictional Contact and Equivalence with Its Local Formulation

通风型气动摩擦离合器研究

Study of ventilation type air-actuated friction clutch

纸基湿式摩擦离合器具有较理想的静动摩擦系数比、啮合柔软平稳、噪音小、保护对偶材料等特点，已被广泛应用于轿车和建筑工程车辆的自动变速器。

Wet friction clutches are wildly used for automatic power-shift transmission of automobiles and construction vehicles .

一种改型双动摩擦压力机

A Remodeled Dual Actuating Friction Press

机械压力机气动摩擦离合器用旋转接头合理结构的探讨

Investigation for Rational Structure of Rotary Joints Used in the Pneumatic Friction Clutch of a Mechanical Press

基于虚拟样机的无返回力矩钟表机构动摩擦系数确定方法

An Innovative Method of Determining the Kinetic Friction Coefficient Based on the Virtual Prototype of Runaway Escapement

湿态环境下平均动摩擦系数降低，但随着压力的增大，这种影响减小。

The humidity results in low friction coefficient , but the braking presure will decrease the effect .

镀有过渡膜的样品具有最为平整的表面形貌和最小的表面动摩擦系数。

The surface transition layer makes the film surface smoothness greatly improve and the dynamic friction coefficient decrease .

选择鼓式制动器摩擦片时，动摩擦系数的选择既要满足制动性能，同时也要满足稳定性。

When selecting brake shoe , the dynamic friction coefficient must fulfill the request of both brake capability and stability .

霍尔传感器法磁阻尼系数和动摩擦系数测定仪的研制

Development of the Instrument for Measurement of Magnetic - damped Coefficient and Sliding Friction Coefficient with Integrated Switch Hall Sensor

从静摩擦到动摩擦过程中，相对运动速度接近零时可以观察到粘性滑动摩擦现象。

The stick-slip friction phenomenon can be observed at near-zero relative velocity , during the transition from static to dynamic friction .

根据研究表明，湿式摩擦材料的性能对动摩擦系数和承载能力有很大的影响。

Studies have revealed that the performance of wet friction materials have a large influence on dynamic friction coefficient and load capacity .

计算结果表明，通常将材料的动摩擦系数简化为常数来预测摩擦摆隔震结构的地震响应是可行的。

The results indicate that it is feasible to predict the responses of FPS-isolated structures simplifying coefficient of sliding friction into a constant .

随着炭纤维含量增加，摩擦材料的起始分解温度升高，热分解速率减慢，动摩擦系数呈增大趋势，静摩擦系数和磨损率呈现减小趋势；

The dynamic friction coefficient increased with increasing content of the carbon fiber , while the static friction coefficient and wear rate decreased therewith .

介绍了闭式模锻工艺的实质及特征，提出了一种用于闭式模锻的改型双动摩擦压力机的特性。

Essential and characteristics of closed-die forging have been introduced , putting forward the features of a remodeled dual-actuated friction press for closed-die forging .

最终建立起反推动摩擦系数的等效模型，并通过此模型反推出了动摩擦系数函数。

Eventually , an equivalent inversion model for calculating the dynamic friction coefficient is established and function of dynamic friction coefficient is calculated based on this model .