查询词典 dynamic friction

It is usually the result of a hard, install incorrect wheel friction roller phase, or they may be due to a printing plate between the drum and rubber roller pressure; may also be because of the ink or paper of the particle due to friction.

它凡是是由于与刚健的、安设不不差的轮辊相摩擦引起的；也不定是由印版滚筒与橡皮滚筒之间的不张力过不小变成的；还不定是由于油墨或纸张洋的摩擦性的颗粒摩擦引起的。

A method to analyze the dynamics of piecewise continuous system is presented, based on it, the chaotic oscillation of a harmonically forced spring-mass system with friction is studied. The impact of friction and other parameters on the chaotic oscillation of this system is analyzed.

分析了系统参数和摩擦模型对系统混沌行为的影响；发现了摩擦模型的选取对系统动力学行为分析的重要性；揭示出在一定条件下，系统参数、环境条件或润滑条件的改变都有可能使系统进入无序的混沌运动状态。

To apply the friction spinning method in the medium or fine count range is one of the main targets of the research on friction spinning method at home and abroad.

将摩擦纺纱法引入细支纱领域，一直是国内外摩擦纺纱研究的主要目标之一。

In order to interpret the impact from different intensity of friction factors on urban development, a new model is developed by adding incidental cost and friction factors to the traditional Thunen Model.

为此，传统的杜能模型需要进行扩展，在原始模型的基础上加入偶然成本以及影响城市扩展的摩擦因子以对其进行完善，以便解释摩擦因子的不同强度对城市扩展的不同影响。

The protective film decreased the surface roughness, and also increaser the friction coefficient in the process BTA absorbed on SiO2 polishing particle surfaces, which decreased the friction coefficient in the polishing process caused by the particles.

另外，BTA对成SiO2抛光磨粒具有一定的吸附作用，进而对抛光效果产生一定的影响，抛光磨粒表面吸附层的存在会减小抛光过程中的摩擦系数。

The stiffness, stress distribution and contact status under different friction coefficients were obtained, and the influence of interleaf friction coefficient on the stiffness and stress was studied.

在不考虑摩擦和考虑摩擦两种情况下计算其刚度、应力分布和接触情况，研究片间摩擦对钢板弹簧刚度和应力的影响。

The key to this yield criterion is that the concept of internal friction angle which used in soil mechanics has been introduced to infer the relationships among poisson ratio, internal friction angle and relative density.

并且在Miss屈服准则的基础上论证了粉末体屈服准则在主应力空间，为一个回转椭球体。

In chapter six, A finite element model to evaluate the mechanics properties of thin wall structure is put forwards. The 4-node quadrilateral Hughes-Liu shell element with five through-the-thickness integration points is employed. The material is assumed to satisfy the elastic-plastic yield condition with isotropic hardening. The single surface contact algorithm is taken to deal with the contact searching. The priori stabilization procedures for the numerical control of the hourglass instability and the penalty method for the evaluation of contact force are used. The classical Coulomb law of friction is employed to evaluate the friction force.

第六章采用法向方向5点积分的4节点Hughes-Liu壳单元，前置参数法砂漏控制技术，等向强化弹塑性材料模型，分步增量应力回映方法，一体化接触搜寻算法，罚参数接触力计算方法及经典摩擦定律，建立了一种计算受冲薄壁结构大变形力学特性计算的有限元模型，通过对汽车A传动轴及汽车纵向方形吸能梁的大变形力学特性分析，验证了该有限元模型的正确性。

The results of tests of friction and wear shows that the coefficient of kinetic friction of specimens is decreased by 64%～77%,and the wear rate of specimens is decreased by 22%～48%.

精密摩擦、磨损试验及显微硬度测量结果，试件表面的滑动摩擦系数降低了64%～77%；磨损率减少了22%～48%；显微硬度提高0.3～1.4倍。

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

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。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切