1) skin friction drag
蒙皮摩擦阻力(火)
2) skin friction
蒙皮摩擦(火)
3) Frictional Resistance
摩擦阻力
1.
Influence of the frictional resistance for deadline anchor axis on weight indicator accuracy;
死绳固定器轴上摩擦阻力对指重表精度的影响
2.
Influences of frictional resistance on flow distributions of the dividing and combining manifolds;
摩擦阻力对分流和汇流联箱流量特性影响
3.
A method for lateral buckling analysis of tubing with frictional resistance in deviated wells was presented.
提出了在斜直井中钻柱正弦屈曲分析时对摩擦阻力的处理方法,给出了考虑摩擦阻力时的屈曲平衡方程,建立了相应的微分求积法列式,用微分求积法时平衡方程直接求解。
4) Friction resistance
摩擦阻力
1.
An experimental investigation on the flow and heat transfer of the narrow-gap annular tube vapor generators.Ⅱ.Friction Resistance.;
窄缝环形管内流动与传热实验研究 Ⅱ.摩擦阻力特性
2.
Based on the analysis of macrostructure and microstructure of the sample after ECAE, the influence of friction resistance between the die wall and the sample on the deformation of the sample billet was discussed.
通过对挤压后纯铝试样的宏观变形及微观形貌分析,探讨了ECAE过程中模具内壁与试样之间的摩擦阻力对试样变形的影响,得到了滞变区比例与挤压位移之间的关系。
3.
In daily mine ventilation work,we treat as airway friction resistance factor a constant.
在矿井通风业务实际计算中认为 :对于某特定巷道的摩擦阻力系数视为一定值 ,不考虑其随风流流向改变而改变。
5) friction force
摩擦阻力
1.
In this paper,the effect of friction force on metal forming parameters has been summarized based on some last research reports.
论文基于近期已发表的文献 ,综述了摩擦阻力对金属成形参数的影响。
2.
The paper introduces the method and principle of testing friction force between mould plates and strand on the slab caster.
介绍了板坯连铸机结晶器铜板与铸坯摩擦阻力的测试原理和方法，分析了铜板与铸坯之间的摩擦状态与摩擦阻
3.
What s more,the produced friction force and the added moment,which act on the transmission shaft,influence equipment performance and increase equipment load.
通过对齿轮联轴器工作时的运动和受力分析得知,当补偿轴向位移、径向位移和角偏差时,在接触齿面之间存在滑动摩擦,滑动速度较大,使齿轮联轴器容易磨损破坏;并且在传动轴上产生摩擦阻力和附加弯矩,影响设备性能,增大设备负荷。
6) friction drag
摩擦阻力
1.
Analysis of PTFE Composition Seal Ring and Calculation of Its Friction Drag;
聚四氟乙烯组合密封圈及其摩擦阻力的计算
2.
Effect of blowing and suction on friction drag of wall turbulent boundary layer
吹吸扰动对壁湍流边界层摩擦阻力的影响
3.
Analysis of friction drag in scramjet isolator
隔离段内超声速流动摩擦阻力分析
补充资料：风流摩擦阻力
风流摩擦阻力
friction resistance of airflow
卞engi一u moeo zull风流摩擦阻力(frietion resistanee of airflow) 风流与井巷周壁间摩擦和风流微团或流层间摩擦所产生的切应力。风流以层流状态沿井巷流动时，摩擦阻力与平均风速的一次方成正比;风流以稳定紊流状态沿井巷流动时，摩擦阻力与平均风速的二次方成正比。矿内风流多属稳定紊流，摩擦阻力等于井巷风阻与风量平方之积: 凡一尺fQZ _a尸L R一‘汁于二 S3式中hf为紊流摩擦阻力，Pa;尺f为井巷的摩擦风阻，N‘52/m“，其值取决于井巷的几何尺寸和周壁的粗糙度，与风量无关;Q为流过的风量，m“，/s;尸为井巷净断面的周边长，m;L为井巷的长度，m;S为井巷净断面面积，mZ;a为井巷摩擦阻力系数，N·52/m书。井巷摩擦阻力系数，是由井巷周壁的粗糙度和流过井巷空气的密度所决定的常数。混凝土砌碳的巷道，。为。，。。4一0.。。8，无支护巷道为0.008~。.016，木棚和其他棚架支护巷道为0.016一。.024，有装备物的井筒为().024~0.050。 (陈旺星)
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条