In this paper,the mathematical model of impeller friction losses is deduced.
推导了叶轮摩擦损失的数学模型,针对与之相关的众多结构参数,采用正交试验的方法,对各影响因素进行优化分析,找出了影响叶轮摩擦损失的关键结构参数,并比较其影响的显著性。
Research on the pre-stress friction loss regularity in single span pre-stress beam;
单跨预应力梁中预应力摩擦损失规律研究
Experimental study on friction loss of prestress;
预应力摩擦损失的试验研究
Simplified calculation of the friction loss and anti-friction loss of the prestressing tendon in concrete structures;
混凝土结构中预应力筋摩擦损失与反摩擦损失简化计算
The pre-stressing frictional loss between the pre-stressed wire and the transfer apparatus is tested by the experimental study on six pre-stressing frictional loss of the fold-line pre-tension pre-stressed wire of different angle,5°,9°,13°,the main factors of frictional loss are analyzed experimentally,the method in the calculation of the frictional loss of the pre-stressed wire using.
弯起器是实现先张法折线预应力配筋的关键部件,通过量测6根钢绞线在不同弯起角度5°、9°、13°下穿过弯起器后预应力筋的摩擦损失,分析影响钢绞线摩擦损失的主要因素,提出试验所采用的弯起器预应力筋摩擦损失的计算方法及相关建议。
The friction losses of double crank and connecting rod mechanism diesel engine(SL195) and single crank and connecting rod mechanism diesel engine (L195) are calculated by computer.
对单缸双曲柄连杆机构柴油机(SL195)与单缸单曲柄连杆机构柴油机(L195)的摩擦损失进行了计算分析 并且对(SL195)柴油机和(L195)柴油机进行了实验研究,计算结果与实验结果基本一致 计算结果表明:SL195柴油机的摩擦损失比L195柴油机的摩擦损失约减少了66%,这对提高柴油机的经济性和动力性能有重要实用价值。
The calculation formulas of friction losses in prestressed ring concrete construction is raised by the theory as compared with experiment.
通过理论和实验相比较,导出环向预应力摩擦损失的计算公式,该公式简单易算,避免使用传统的指数形式,且计算的结果与实验结果吻合较
This paper presents a new method of reducing friction losses of disk by inserting another disk in-side the clearance between the disk and the closure cavity.
本文采用在叶轮轮盘与泵壳体组成的间隙流场内插入—自由旋转圆盘的方法,来降低流体机械内轮盘摩擦损失。
The Loss of Friction and Anchorage for Marssive Tonnage Prestressed Bend Cable
大吨位预应力弯曲锚索摩擦损失和锚固损失
Calculation of the Friction Loss of Prestress for a Spacial Tendon
空间预应力筋预应力摩擦损失的计算
Prestress Loss Induced by Friction in Suspendome Construction
弦支穹顶结构预应力张拉的摩擦损失
If there were no frictional losses in a machine, the machine would Be 100 per cent effective.
如果机械里没有摩擦损失，其效率就是100％了。
Test and Research on the Frictional Loss of Prestress in the Corrugated Pipe Duck;
波纹管孔道预应力摩擦损失检测与研究
Friction losses in the equivalent lengths of ducts constitute the pressure loss in the elbow.
管道的等量长度中的摩擦损失即构成弯管中的压力损失。
The relationship of the initial gas and particle velocity ratio and suspended velocity, friction coefficient is analyzed.
分析了初始气固速度比与悬浮速度、壁摩擦损失系数的关系。
Over a period of time the motor is required to make up the friction losses and the losses in the clutches when they are slipping.
在整个工作时间里，电动机需要弥补摩擦损失和离合器滑动时所造成的损失。
frictional prestress loss
摩擦引起的预应力损失
head of fluid frictinal loss
流体摩擦阻力损失压头
Prestressing Losses due to Friction and Anchorage of Space-curved Tendons
空间曲线筋的摩擦和锚固预应力损失分析
Calculation of Friction Resistance Loss for the Slurry Pipeline of Cutter Suction Dredge
绞吸挖泥船输泥管路的摩擦阻力损失计算
To become worn or sore from rubbing.
擦伤，擦疼因摩擦而磨损或擦疼
Effect of Friction Speed on Friction and Wear Performance of Cu-matrix Friction Materials
摩擦速度对铜基摩擦材料摩擦磨损性能影响
frictional unemployment
摩擦性失业,短期失业
Study on Friction, Wear and Lubrication of the Mated Couple of HIP-Si_3N_4/GCr15;
HIP-Si_3N_4/GCr15摩擦副摩擦、磨损及润滑的研究
The Friction and Wear characteristics Research of Ceramics Friction Pair;
陶瓷材料摩擦副的摩擦磨损特性研究
Warmth, wear, or soreness produced by friction.
摩擦所产生的热、擦损或擦痛