【摘 要】
：
A ball-disc traction test rig is improved through the development of a lubricant traction measurement system,consisting of a resonance force sensitive quartz se
【机 构】
：
School of Mechanoelectrical Engineering
【基金项目】
：
the Creative Talent Foundation in University of Henan Province;Project supported by the National 11th Five Year Plan Key Programs for Science and Technology Development
论文部分内容阅读
A ball-disc traction test rig is improved through the development of a lubricant traction measurement system,consisting of a resonance force sensitive quartz sensor,a circuit of the sensor and a rigid bracket jointed by a frictionless hinge.The traction coefficients of a kind of domestic lubricating oil were measured at various normal loads,rolling velocities,lubricant inlet temperatures and slide-to-roll ratios on a ball-disc traction test rig equipped with this traction measurement system.The results show that the traction test curve is smooth and the data enjoy a good accuracy,which indicates that the design of the lubricant traction measurement system is reasonable and the precision of the system is high,especially,at high temperature,high rolling speed and small slide-to-roll ratio.
其他文献
目的观察标准治疗基础上联合氯吡格雷治疗60岁以上急性ST段抬高心肌梗死患者1年疗效及安全性。方法 95例72 h以内发病60岁以上的ST段抬高心肌梗死患者随机分为两组,两组均在
目的 探讨中晚孕期胎儿主动脉各段及分支内径的正常参考值范围,研究主动脉缩窄胎儿相应值的变化.方法 检测234例14~41孕周正常胎儿主动脉矢状断面上主动脉根部、升主动脉、主
目的 探讨退变性腰椎侧凸患者椎问盘的不对称指数、腰椎间盘退变程度以及骨密度降低对侧凸角度的影响.方法 采用回顾性研究的方法,选取2002年1月至2010年8月,共96例退变性腰
目的:探讨简易CPAP供氧对体质量偏高新生儿肺炎呼吸窘迫的血气影响.方法:对入住MCU的体质量偏高新生儿(3.5 kg＜体质量＜5.0 kg)肺炎中出现呼吸窘迫时,除常规抗感染等基本治疗外,
为解决鹤煤五矿深部软岩巷道的支护难题,以该矿三水平延深车场工程为例,采用现场地质调查、室内试验、数值模拟、理论分析和现场监测等方法,分析了巷道工程地质条件和围岩特
In the present study, geometrical optimization and electrostatic potential calcula- tions have been performed for 22 nitroaromatic compounds at the HF/6-31 G* l
The title compound (9S,13R,14S)-7,8-dehydro-4-(4-bromo-benzyloxy)-3,7-dime- thoxy-17-methyl-morphinan-6-one monohydrate (O-4-bromobenzylsinomenine) was synthesi
目的:考察盐度、pH值、接种时期、维生素和微量元素对一种裸甲藻生长的影响。方法:采用配制不同条件海水加富培养液培养裸甲藻,计算藻细胞密度来考察裸甲藻的生长情况。结果:
A new nickel citrate compound Ni(Hcit)(phen)(HO)·3HO (Hcit = citrate acid, phen = 1,10-phenanthroline) has been synthesized and characterized by single-crystal
分析了钻割一体化水力割煤过程中各阶段的特点,推导和描述了磨料在射流中的受力状况和速度分布,首次提出深孔水力割煤中存在“水打架”和“穿越水带”现象,分析得出这两种现