1) slip velocity of frictional component
摩擦元件滑磨速度
2) friction element
摩擦元件
1.
In order to overcome the shortages of the friction element of thermal-mechanical bit in wear resistance and heat resistance, researches were made on the element material, including choice and design of matrix material.
为了解决热机碎岩钻头摩擦元件耐高温、耐摩擦等性能不足问题,对摩擦元件材料进行研究,包括胎体材料选择、配方设计等。
3) friction velocity
摩擦速度
1.
Abrasion property was mainly investigated for the particulates reinforced metal matrix composites(PR MMCs) under different friction velocity.
研究了颗粒增强铁基复合材料(PRMMCs)在不同摩擦速度下的性能。
2.
The threshold friction velocity of oasis surface is greater than that of Gobi surface at natural condition, and the vertical dust flux of oasis surface is nearly 10 times smaller than that of Gobi surface because of the difference of the land-surface characteristics such as particle size distribution, plant vegetation and surface soil moisture content and so on, but whe.
研究表明,在自然状态下,由于地表土壤的粒子尺度分布特征、植被覆盖度及地表土壤水分含量等下垫面特征不同,绿洲地表风蚀起沙的临界摩擦速度要大于戈壁地表,其垂直尘粒通量(风蚀起沙率)比戈壁地表小将近一个数量级;但考虑人为的翻耕作用时,绿洲地表风蚀起沙的临界摩擦速度可能会减小一半以上,其垂直尘粒通量也将增加大约一个数量级,甚至比戈壁地表还要大。
3.
The results show that,compared with the fraction velocities directly measured by eddy-covariance method in different wind-sea/swell regimes,all parameterization schemes estimate friction velocity in pure wind sea regime better than those in both crossing swell and counter swell regimes.
利用前人给出的表面波浪动力试验中的部分观测资料,通过六种不同的湍流通量参数化方案,分别计算了不同海面波浪状况所对应的摩擦速度。
4) frictional velocity
摩擦速度
1.
In the context of field observations at Shentou (112°17′ E, 39°18′ S) in September～October 1988, calculation is carried out of frictional velocity, characteristic temperature and turbulent momentum flux, with turbulent heat flux dealt with by two methods.
利用山西省神头（１１２°１７′Ｅ，３９°１８′Ｎ）１９８８年９～１０月间采集的大气野外测试资料，计算了摩擦速度、特征温度、湍流动量通量。
5) sliding speed
摩擦速度
1.
The friction and wear behavior of CuTeSeFe alloy as well as the effects of load and sliding speed on the friction and wear properties of the alloy under dry sliding conditions were investigated by ring-disc friction and wear tester.
利用环-盘式摩擦磨损试验机研究了铜碲硒铁合金的干摩擦磨损行为,分析了载荷和摩擦速度等参数对该合金摩擦磨损性能的影响,并用扫描电子显微镜对磨损形貌进行了观察。
6) Nonlinear kinetic phenomena
摩擦学元件
补充资料：摩擦提升防滑安全系数
摩擦提升防滑安全系数
anti-slip safety factor of friction hoist
moeot一sheng fan梦uo onquon xlsh日摩擦提升防滑安全系数(an，i一slip safe，y fac-tor of frietion hoist)阻止提升钢丝绳滑动的力(摩擦力)与提升钢丝绳张力(滑动力)差之比。其表达式为 F、(尸“口一1) “一丁几万万式中u为防滑安全系数;F，为上升钢丝绳的张力，N;F、为下放钢丝绳的张力，N;召为2.718;产为提升钢丝绳与衬垫间的摩擦系数;a为提升钢丝绳在摩擦轮上的围包角，rad。当提升设备静止或等速运动时，则得静防滑安全系数。。;当提升设备加、减速运动时，则得动防滑安全系数，、。一般规定“.)1.75，“d夕卜25.其数值是决定整个提升系统安全性和经济性的指标之一为了保证摩擦提升设备在工作中不发生滑动，必须验算防滑安全系数，包括静防滑、动防滑和安全制动防滑三种验算。静防滑也可以校核上升钢丝绳与下放钢丝绳的静张力比，即K一兀、/凡，<1.5，其他国家也有采用K.毛1.4二当采用加、减速度不大于lm/s之时，可以不验算动防滑安全系数。安全制动防滑验算是要求其减速度不大于防滑极限速度。增大防滑安全系数的措施有:(l)加设导向轮，增大钢丝绳围包角a;(2)选择结构适合的提升钢丝绳，采用具有高摩擦系数且耐压耐磨的材料作衬垫，在提升钢丝绳上涂专用油脂，增大摩擦系数产;(3)采用尾绳，增大容器自重，采用平衡锤单容器提升，减小提升钢丝绳两侧的静张力比;(4)限制最大加、减速度，减小动载荷。 (李仪枉)
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