1) contact frictional resistance
接触摩擦阻力
1.
It is solved by the gap element method[1] in this paper so that the contact state is accurately described and the contact frictional resistance of drillstring is calculated.
用整体钻柱静力模型和间隙元法,分析了长中半径水平井钻柱的接触非线性问题,算出了钻柱与井壁接触摩擦阻力的分布,为水平井井眼轨道设计和施工提供了重要参数。
2) friction contact load
摩擦接触力
3) Contact friction forces
接触摩擦力
4) contact friction
接触摩擦
1.
A study on the vibration characters and fault diagnosis of plain bearing contact friction fault with the dead load;
静载荷滑动轴承接触摩擦故障的振动特征与故障诊断
2.
The application of contact friction in bolt connection;
接触摩擦在螺栓连接中的应用
3.
Research on shrinkage stress of concrete slabs with contact friction;
考虑接触摩擦的混凝土面板干缩应力研究
5) Friction contact
摩擦接触
1.
The contact characteristics between two bodies with sharply different stiffnesses were analyzed using a 3 D friction contact element method developed from a 2 D version to analyze nonlinear material changes.
以节点接触应力为基本未知量 ,将二维摩擦接触元推广到三维空间 ,给出了三维应力状态下的接触算法。
6) frictional contact
摩擦接触
1.
Numerical simulation on the frictional contact problems of brake band-friction flake;
制动带-摩擦片摩擦接触的数值仿真
2.
The convergence of the non-linear frictional contact boundary problem is obtained by iteration.
模型中计入了可能滑坡面岩石材料强度的影响,并通过迭代计算的办法求解该边界非线性的摩擦接触问题。
3.
Reflection and transmission of elastic waves at a frictional contact interface between two piezoelectric media is discussed.
讨论了弹性波在压电介质摩擦接触界面上的反射和透射问题。
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