查询词典 static friction coefficient

We spread the feeling machine to study the simple pendulum vibration period with a 霍 of switch 尔, perfect the diagraph of the gravity acceleration;We will gather a 霍 of switch 尔 spreads the feeling machine to used for measuring the spring coil to flap the son makes JIAN3 XIE2 vibration of period, further tested to find out inertial quantity of the object;New gather a 霍 of switch 尔 spreads the feeling machine to provided a kind of precision to measure the 磁 damping coefficient and new method of the glide coefficient of friction of the materials that the magnetism slips the piece for us;Gather a 霍 of switch 尔 spreads the feeling machine and can also used for the verification machine can guard the 恒 laws etc.

我们传布了感觉机器用开关尔的霍学习简单的钟摆震动时期，使地心引力加速的分度尺完美；我们将会聚集开关尔的霍传布感觉机器到为测量要拍打儿子的卷作时期的 JIAN3 XIE2 震动的春天用，更进一步测试发现物体的不活泼的量；新的聚集开关尔的霍传布感觉以机器制造提供一种精密测量磁湿气磁性滑倒块的材料摩擦的滑动系数的系数和新的方法因为我们；聚集开关尔的霍传布感觉机器和罐子也用因为确认机器能及其他保卫恒法律。

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钻牌UV板选用高品质基材，环保系数达到E1级标准，防潮、不变形；钻牌UV板底漆选用上海名牌PU漆，色彩鲜艳，饱满，环保系数高，底漆高填充、高附着、高平整度，真正做到不褪色、无橘皮；钻牌UV板选用进口高亮度、高清晰UV面漆，板面光泽亮丽、手感滑润、耐磨擦、耐腐蚀且抗菌。

Wake velocities at the propeller disk plane, other than pressure coefficient and skin friction coefficient, are given, and vortices structures shed from the fairwater and four stern appendages are observed from the velocity vectors.

同实测结果进行了对比，相当吻合。

And a new method for the measurement of magneto damped coefficient of magnetic slide block and sliding friction coefficient of the using material is presented simultaneously.

介绍一种采用新型集成开关型霍尔传感器来精确测量磁性滑块的磁阻尼系数和材料的滑动摩擦系数的新方法，并介绍该方法制成新仪器的原理及实验结

Annular tube, flow friction coefficient, heat transfer coefficient

环形管，流动阻力系数，换热系数

It is found that the position of vortex shedding is different fro m three-row cylinders. The time-mean pressure coefficient along the surfaces o f the cylinders is not changed with the void friction. But the fluctuating press ure coefficient reduces with the increase of void fraction.

试验结果表明：沿圆柱表面周向的旋涡分离点随着流动向深层发展，并向圆柱的背部移动；圆柱表面沿周向的时均压力系数几乎不随含气率的变化而变化；圆柱表面的脉动压力系数随着含气率的增加而减小。

The static model of torsion joint is based on that of bending joint. The effects of structure parameters inside air pressure, initial angle, rube average radius, rube shell thickness on the turning angle are analyzed and the following conclusions are drawn: the relationship between the angle of torsion joint and the inside air pressure is basically linear, the angle of torsion joint increases with the initial angle and rube average radius, the angle of torsion joint decreases while the rube shell thickness increases. The kinetic equation is built for torsion joint. Simulating experiment implies that the time of inflating and deflating process is extremely shorter than that of kinetic process. So the pneumatic process can be ignored in actual system design and control. The factors that affect the dynamic features of torsion joint, such as shell thickness of rubber tube, average radius, initial angle, connector's outlet area, moment of inertia and viscous damping coefficient, are analyzed and the following conclusions are drawn: the change of rube shell thickness has no effects on the dynamic process of FPA inside air pressure while greatly affects the turning angle of torsion joint; when the rube shell thickness is small, the torsion joint has a bigger turning angle, no overshoot and long risetime, when the shell thickness is big, the turning angle of torsion joint is small, but has high response speed, overshoot and low shock; when the rube average radius increases, the turning angle of torsion joint increases and the overshoot increases too; when the initial angle of torsion joint is big, the turning joint is big, the overshoot is small and shock is low, but the risetime is big; the connector's outlet area affects the dynamic process of FPA inside air pressure greatly, but has no effects on the dynamic process of turning angle; moment of inertia and viscous damping coefficient have no effects on the dynamic process of FPA inside air pressure, but affect the dynamic process of turning angle greatly.

在弯曲关节模型推导的基础上，建立扭转关节的静态模型，并分析了扭转关节内腔压力，初始转角，橡胶管平均半径，橡胶管壁厚等参数对关节转角的影响，得出扭转关节的转动角度与充入FPA内腔的压缩气体压力之间基本呈线性关系，扭转关节的转角随初始角度和橡胶管平均半径的增大而增大，扭转关节的转角随橡胶管壁厚的增大而减小的结论；建立了扭转关节的动力学方程，仿真实验表明FPA的充放气过程与扭转关节的动力学过程相比时间极短，在实际系统设计和控制过程中可以忽略不计；分析讨论橡胶管壁厚，平均半径，初始角度，气体节流口面积，转动惯量，粘性阻尼系数等因素对扭转关节动态特性的影响，得出橡胶管初始壁厚的变化对扭转关节FPA内腔压力的动态响应几乎没有影响而对关节转角的响应曲线影响比较明显，壁厚较小时，关节可以得到较大的转角，并且转角的响应曲线没有超调，但上升时间长，壁厚较大时，关节转角变小，响应加快，但是有超调和轻微振荡现象，橡胶管平均半径越大，得到的关节转角越大，但是转角响应的超调量也随之增大，FPA的初始角度越大，关节的转角越大，并且超调量减小，振荡减弱，但是上升时间增大，管接头出口面积的大小对关节FPA内腔压力的建立过程影响较大，但对关节转角的动态响应几乎没有影响，转动惯量和粘性阻尼系数对FPA内腔压力的动态过程几乎没有影响而对扭转关节转角有较大影响等结论。

When system error is very huge, integral effect will be weakened even disappeared, and when the error is small,the effect will be enhanced. Overshoot caused by overlarge integral coefficient is solved completely, even saturation state or static difference due to little integral coefficient.

在改进的控制算法中，积分增量在整个控制过程中是变化的，系统偏差大时积分作用减弱甚至全无，而在偏差小时则加强。

A basic relational model for tip leakage mixing loss of unshrouded blades for compressible flow was derived from theoretical analysis of Denton. Relationship. It reflected the influential factors such as blade surface static pressure, chordwise distribution of tip clearance, discharge coefficient and total pressure loss coefficient in the tip region.

借鉴Denton不可压叶尖泄漏损失的理论分析，推导出可压缩流动中叶尖泄漏掺混损失基本关系式，其集中反映了尖区叶表压强、叶尖间隙、泄漏流流量系数及总损失系数影响。

A basic relational model for tip leakage mixing loss of unshrouded blades for compressible flow was derived from theoretical analysis of Denton. Relationship. It reflected the influential factors such as blade surface static pressure, chordwise distribution of tip clearance, discharge coefficient and total pressure loss coefficient in the tip region.

借鉴Denton不可压叶尖泄漏损失的理论分析，推导出可压缩流动中叶尖泄漏掺混损失基本关系式，其集，中反映了尖区叶表压强、叶尖间隙、泄漏流流量系数及总损失系数影响。

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。