查询词典 friction

It is pointed out that nonlinear regime of the friction coefficient curve is caused by rheological properties of lubricant.

计算中考虑了变形历史对剪应力的影响，并将计算结果与牛顿体计算结果以及实验进行了对比，指出摩擦系数曲线中的非线性区主要是由于润滑油流变性的影响造成的。

A model of friction coefficient of aluminum matrix hybrid composite was proposed.

建立了碳化硅、石墨颗粒混杂增强铝基复合材料的摩擦系数模型。

Smooth, cable fiber optic cable installation process can be very small coefficient of friction.

光滑的外护套使光缆在安装过程中可以有很小的摩擦系数。

The collisions of rigid bodies is a classical problem, however, the coefficient of restitution is used in the conventional researches to study this problem. The authors present a new way for this kind of problem. A theory of the collision between two rigid bodies in two dimensions, taking account of friction, is proposed according the Newton first law. And the shortages of former researchers are justified.

刚体碰撞是力学上的一个经典问题，但目前大都采用给定恢复系数进行分析的方法，本文则直接从两刚体碰撞时Newton第二定律出发，建立了计及摩擦的两刚体碰撞基本理论，并指出了以往研究通过给定恢复系数方法的错误之处。

The numerical results of static friction coefficient showed that it first increases and then decreases with the increase of load.

根据分形转变模型计算的静摩擦系数与载荷的规律是：随着载荷的增加，静摩擦系数先是增加，然后又减小。

If the coefficient of static friction is 0.13 , what is the minimum force that is necessary to keep the block of wood in place?

如果静态摩擦系数是0.13，以最低到什么的力量来保持木块到位？

The coefficient of friction for static contact is higher than for dynamic contact, so static contact provides better traction.

此时因为静摩擦系数比动摩擦系数高，所以静摩擦的附着力较大。

However, the effect of the ion group content and the level ofthe ionomers on the static friction coefficient of the modified epoxy resin seemed tobe more complicate.

然而离子基团含量以及离聚体加入量对改性环氧树脂静摩擦系数的影响则比较复杂。

Further study of this paper has shown that reason for"camel peak"phenomenon in the adhesion-creep test curves is difference between sliding-and static coefficient of friction and discussed the analytic formulae for line contact as well as one direction slip and special correction Lemk's method for point contact when their change is considered as stage jump function.

通过进一步的理论研究指出造成轮/轨粘着率与弹性滑移率实验曲线呈"驼峰"状的原因是滑动区和粘着区的动、静摩擦系数变化，给出了当它们为阶跃变化时线接触条件下的解析解和对点接触情况的独特的"修正"Lemke算法。

The paper implements a study about some factors having influences on the bending behavior of externally prestressed concrete simple supported bridges .these factors include the change of PPR、 the change of match tendon rate、 the change of static friction coefficient and the sliding one, the reasonably scope of these parameters value is given.

4以整体施工的体外预应力简支梁为研究对象，利用自编程序就预应力度、截面配筋及转向块与体外筋的相对滑动等参数对体外预应力梁受弯性能的影响进行了分析研究，给出了这些参数的合理取值范围。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。