查询词典 static friction coefficient

Fifthly,the formulae of friction coefficient and wear rate for sliding contact were proposed, with which the sliding friction and wear resitance can be calculated.

对滑动摩擦，提出了整合涂层的摩擦系数与磨损率的计算公式。

At low speed, the higher level of clenching action between the friction pair led to higher friction coefficient.

这归因于低速条件下摩擦副间的自由合程度大，使摩擦系数处于较高值。

In this thesis, the phase diagram of Zn-Al binary system on 10~69.5 w% was reinvestigated by using differential scanning calorimeter, X-ray diffraction and pushrod dilatometer. The process of isothermal transformation during the aging of high-Aluminum-Zinc-based alloy was studied by using differential scanning calorimetry, and the aging behavior of the alloy was analyzed at the aspect of thermal analysis kinetics. The change of microstructure which the alloy was being heated was observed on high-temperature metallurgical microscope. The microstructure and wear-friction properties were compared among the alloys treated with several different heat treatment processes, and a model for heat treatment processes was proposed based on artificial neural network,so as to predict the relationship between friction coefficient and parameters of aging treatment such as aging temperature and time.

本文采用高温X射线衍射、示差扫描量热分析、热膨胀等方法重新测定含锌量范围为10％～69.5％的Zn-Al系二元相图，利用示差扫描量热分析法，研究高铝锌基合金时效等温转变过程，并从热分析动力学的角度分析高铝锌基合金合金时效行为；使用高温金相显微镜观察合金加热时的组织变化；比较几种不同热处理工艺对高铝锌基合金显微组织与耐磨性能的影响并利用人工神经网络建立高铝锌基合金热处理工艺模型，预测合金摩擦系数随时效温度及时间变化规律。

The newest paper_based composite friction material has a far higher energy absorption capacity than current metal_based material,a high friction coefficient,a low wear ratio,and high thermal stability.

随着新的和高级的离合器和刹车系统的发展，对摩擦材料提出了更高的负荷和更快的速度，即更高的能量要求，并要求有更稳定、更高的摩擦系数、更长的使用寿命和柔和的操作性能。

Brush box in the middle of two sides of each hole with a gas filter, both filters also reduce the weight of transparent heat of friction out of the toner, can reduce friction coefficient.

在刷盒的两个侧面的中间各设有一滤清汽孔，既减轻重量通透散热又滤除摩擦掉的碳粉，可降低摩擦系数。

Materials of low coefficient of friction are made into sliding bearing which avoids the friction between piston and metal of cylinder body.

低磨擦系数的材料作成滑动轴承，避免了活塞与缸体金属之间的磨擦。

The paper is based on wave resistance, which is one of bases in ships total resistance, is considered the friction resistance coefficient of the equal fiat panel, replacing the friction resistance with "1957 international ship mold experiment pond converting formula of the solid ship- ship mold " to set up the total resistance, and is worked to use the model of fore part, half part, and whole part of ship for the optimization.

本文基于兴波阻力(中、高速船舶的兴波阻力在船舶总阻力中占有相当的比例)数值计算：考虑相当平板摩擦阻力系数，将摩擦阻力用&1957年国际船模试验池实船-船模换算公式&简化来构建摩擦阻力和兴波阻力的总阻力公式；采用最优化计算方法分别对船首部、前半体及整体船型进行理论优化设计的探讨。

With the increase of temperature, the friction coefficient of the composition materials increased and the wear rate of the composition materials decreased.PPTA pulps in the friction materials overcome the shortcoming of asbestos that has high wear rate at high temperature.

结果表明，3种芳纶浆粕增强的摩擦材料都具有优良的摩擦磨损性能，特别是随着温度升高，摩擦系数有较大提高的同时，磨损率明显下降，克服了石棉增强的摩擦材料在较高温度下磨损率较大的缺点。

The results of the friction and wear test show that this SAM can decrease the friction coefficient of the substrate significantly.

有机氟材料的表面自由能低，具有很高的疏水－疏油性和较低的摩擦系数，广泛应用于许多领域。

The results of friction and wear test showed that this wearable composite has lower wear rating, but has bigger friction coefficient.

通过对材料进行摩擦磨损试验，结果表面该耐磨复合材料的磨损率较小，但摩擦系数偏大。

After explaining total design of automated test system for microcircuit , the thesis introduces GPIB standard .

文章在说明了微电路模块自动测试系统的总体设计后，对GPIB标准进行了介绍。

He interceded in my behalf.

他替我说情。