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。
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。
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。
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。
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。
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。
The dust particle concentration data measured by Wide Range Particle Spectrometer and the data observed at a 20 m meteorological tower were used to calculate the dust emission rate,friction velocity and threshold friction velocity over Zhurihe area,Inner Mongolia.
通过宽范围颗粒谱仪WPS以及20 m梯度塔获得的观测资料,计算了朱日和地区沙尘天气下的起沙通量、摩擦速度以及临界摩擦速度,得到以下结论:①起沙通量大小与沙尘天气的强度呈一定的相关关系,随着沙尘天气强度的增大,起沙通量大小也增大。
To improve the quality of friction weldingjoints of engine turbocompressor rotors, we analyzed theproperties, microstructure, fracture surface and elementdistribution of K418+42CrMo friction welding joints ondifferent relative friction speeds.
为提高发动机涡轮转子摩擦焊接的质量,对不同相对摩擦速度下K418+42CrMo摩擦焊接接头性能、金相组织、拉伸断口及元素成分进行了分析。
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
Calculating Friction Velocity from Data by a Ship-borne Supersonic Anemometer;
由船载超声风速仪数据计算摩擦速度
Structure Design and Accuracy Test of the Large Ratio Friction Transmission Apparatus;
大速比摩擦传动结构设计和精度测试
Experimental Study on the Potential-Controlled Friction Behaviors of ZrO_2/Stainless Steel Pairs under Different Normal Loads and Sliding Speeds
不同载荷和速度下氧化锆/不锈钢摩擦副电控摩擦行为的实验研究
The interface transferring velocity increases with the input power directly.
摩擦面转移速度与输入功率之间存在正比关系。
The force of friction affects the speed at which spacecraft can re-enter the earth's atmosphere.
摩擦力能影响航天器返回地球大气层的速度.
Stability of Steady Sliding with Velocity Dependent and LuGre Type Friction Model;
基于速度相关和LuGre摩擦模型的滑动稳定性分析
Friction and wear properties of C/C-Cu composites sliding at various velocities
不同速度下C/C-Cu复合材料的摩擦磨损性能
Surveying of Static Friction Coefficient for Forest Seed and Calculate of Slippery Speed
林木种子静摩擦系数的测定及滑动速度的计算
Relation of welding speed and heat input at aluminum alloy friction stir welding
铝合金搅拌摩擦焊时焊接速度与热输入的关系
In addition, the surface microstructure and the morphology have been observed by scanning electron microscopy( SEM) and X-ray diffraction.
结果表明随着磨损载荷、擦速度的增加，摩擦系数有所减小。
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。
high speed reciprocating friction testing machine
高速往复式摩擦试验机
Speed measurement for runway friction measurements based on GPS/hall sensor fusion
基于GPS/霍尔转速传感器融合的机场跑道摩擦系数测试车速度测量
Effect of Concentration of Hydrogen Peroxide on the Friction and Wear Behavior of 1Crl8NI9Ti Stainless Steel
过氧化氢浓度、载荷和滑动速度对1Cr18Ni9Ti不锈钢摩擦学行为的影响
Influence of Speed and Texture Depth on Skid Resistance of Pavement Surface
速度和构造深度对水泥混凝土路面摩擦系数的影响
Passing through blades, with the actions of the frictions, high velocity will decrease a little bit.
蒸汽通过叶片时，由于摩擦的作用其速度稍稍降低。
The different rates of change between modern technology and the law create friction in other places as well.
科技与法律发展速度的不同在其他地方也产生了摩擦。