查询词典 static friction coefficient

The results showed that the residual yield point stress descended and cushion coefficient increased with the number of vibration and the acceleration increased. Cushion coefficient don't change much in the small stress stage; while in the large stress stage; cushion coefficient increases obviously.

结果表明，随着振动次数、振动加速度的增加，瓦楞纸板剩余屈服应力减小，缓冲系数增大，其中在小应力阶段缓冲系数变化不大，在大应力阶段，缓冲系数显著增大。

The effect of Gurney flap on double delta wing aerodynamics was conducted in low speed wind tunnel,the experimental results indicated that Gurney flap can promote the model s lift coefficient,maximum lift coefficient and lift-to-drag ratio at middle to high lift coefficient.

通过低速风洞实验研究了Gurney襟翼对双三角翼气动特性的影响，结果表明Gurney襟翼可以提高双三角翼的升力系数、最大升力系数以及中高升力系数情况下的升阻比。

Then a model to distinguish skin drag coefficient and form drag coefficient is established based on a floe drag experiment by using a wave-current tank in laboratory, and the quantitative relationship between skin/form drag coefficient and floe geometric parameters is established as a result.

水拖曳系数同海冰几何形态参数的关系才是提高拖曳系数适应性和准确性的最佳途径。

When thecohesion and angle of internal friction is fixed ,the layer failure area becomessmaller with increase of shocrete layer's thickness.also the shotcrete layer has acritical thicknesswith the change of cohesion and angle of internal friction ofshotcrete'sinterface.

初喷接触面粘聚力和摩擦角强度一定时候，初喷破坏区随初喷厚度的增加而减少；接触面强度变化时，初喷存在一临界厚度；初喷破坏区主要集中在节理与洞周的相交处。

Treating with coils as aeolotropy, this paper brings forward a set of mathematical mode for computing internal stress distribution of coil in the process of coil coiling, in which some factors are taken into account, such as the transverse distribution of shape, crown and curl tension of the strip, the friction between the strip and the reel, the friction between strips, and etc. Because the reel shrinkage and the inner circle of the strip losing radial restrain and circumferential restrain can induce interlayer slipping and the change of the whole coil compactedness , the assumption concerned ——"virtual reel" in the process of coil uncoiling is put forward, which takes the form of slow action to express the uncoiling process and, therefore clearly simulates the variation course of internal stress distribution of coil in the process of coil uncoiling.

考虑到带材板凸度、卷取张力的横向分布以及带材与卷筒之间、带材与带材之间的摩擦力等因素的影响，并将钢卷按各向异性体处理，提出一套计算卷取过程中钢卷内部应力分布的数学模型；同时考虑到卸卷过程中由于卷筒的收缩，钢卷内圈失去径向和周向约束而引起层间滑移及整个钢卷紧密程度发生变化，提出钢卷卸卷过程中有关"虚拟卷筒"假设，将卸卷过程以"慢动作"的形式表示出来，清楚地模拟出卸卷过程中钢卷内部应力分布的变化历程。

The friction, which obviously, is a loss, results in the friction drag of the airfoil.

摩擦，这很明显，是一种损失，结果在摩擦拖曳的翼型。

Focused on many problems existing in pressure control system of drilling pipe friction welding,such as high failure rate and poor amenability,the basic principles of friction welding and electro-hydraulic proportional technique were briefly described.

针对焊接钻杆连续驱动摩擦焊机采用开关阀组成压力控制系统存在故障几率高、可控性差等问题，将电液比例控制技术应用在摩擦焊压力控制中，实现了摩擦焊轴向压力闭环控制、滑台进给速度的开环控制；可对摩擦焊机主轴速度、轴向压力、轴向缩短量、主电机电流、油温等进行实时检测。

The studied factors respectively are: length of soil nailing, insert deepness of piles, friction force of soil nailing interface, declination angle of soil nailing, horizontal spacing of soil nailing, rows of soil nailing, unit weight of soil, friction angle, unit cohesion, overload of slope, diameter of soil nailing.

这11个因素分别为：土钉长度、土钉直径、土钉界面摩擦力、土钉下倾角、土钉水平间距、土钉排数、土体重度、内摩擦角、粘聚力、坡顶超载、板桩插入深度。

Due to the characteristics of Barium sulphate is widely used in the friction material of a kind of friction performance regulator.

由于硫酸钡具有的特性，所以是摩擦材料中普遍应用的一种摩擦性能调节剂。

However, it was training for some long-standing friction between the person investigation, could not help but be taken aback: The surveyed 200 elderly people insist on friction, almost everybody Hefatongyan, energetic.

然而，有人对一些长期坚持磨擦锻炼的人进行调查之后，不禁吃了一惊：被调查的200位坚持磨擦的老人，几乎个个鹤发童颜，精力充沛。

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。