| 1. | Research on adhesion and frictional characteristic between rail and electrical locomotive ' s wheels 电机车轮轨黏着摩擦特性研究 |
| 2. | Testing study on frictional characteristic of large - scale and high - speed landslide during sliding 大型高速滑坡滑动过程中摩擦特性的试验研究 |
| 3. | Bench test method for frictional characteristics of sintered metal friction materials run in lubricants 湿式烧结金属磨擦材料磨擦性能试验台试验方法 |
| 4. | Experimental study of the enhanced convection heat transfer and frictional characteristics of non - phase - transition fluid in inner chute - spirally corrugated tube 无相变流体在内斜齿螺旋槽管内强化对流换热与阻力特性的实验研究 |
| 5. | High quality oils of good oxidation stability incorporating oiliness , antiwear & tackiness additives which impart the frictional characteristics necessary to prevent ' stick - slip ' in the operations of tableways & slideways of machine tools 高品质具良好氧化稳定性润滑油,含油腻性,抗磨损及黏附性添加剂,因此能防止工具机械导轨及滑面在操作时胶著-滑动]之不良现象 |
| 6. | In order to realize smooth movement of mechanical system at a low velocity , the following work investigates new types of linear ultrasonic motors and antifriction technique by superposing the motor ’ s elliptical vibrating motion at the friction interface to change frictional characteristics , produce ultrasonic lubricant effect and realize active control of friction force 本文研究新型超声波马达,利用其产生于摩擦界面的椭圆轨迹超声振动引起的润滑效应和摩擦接触行为的改变来减小摩擦力的大小,完成对摩擦力的主动控制,实现机械系统的低速平滑运动。 |
| 7. | 3 . according to the theoretical analysis and the experimental study on the engineering characteristics of some kinds of typical materials , some achievements have been made as follows : deformed functions of the reinforced earth materials are established by the tests of loaded - unloaded stress - strain relations . iv i4 { ~ i ~ primary influence factors have been found out about frictional characteristics 3 、通过对目前常用于实际工程中的几种典型筋材的工程特性试验和理论分析,获得了具有重要实际工程意义的成果:进行了加?卸载多循环应力?应变关系试验,建立了筋材在约束条件下的变形方程。 |
| 8. | The friction coefficient , critical vertical loads and critical frictional resistance strength have been worked out by means of the pullout tests under the different vertical loads , analysis of frictional characteristics between soil and material and analysis of the different work mechanism between direct shear test and pullout tests . the creep characteristic parameters of some typical reinforcement materials have been obtained by the creep tests under the loads for a long time and the rheological analysis 对几种典型筋材在不同法向荷载下进行了拉拔试验,并进行了筋材与土介质的界面摩擦特性分析,直剪试验与拉拔试验不同机理分析,找出了影响摩擦特性试验结果的主要因素;得出了筋材在工作荷载阶段的摩擦系数、临界法向中南大学博士学位论文荷载和临界摩阻强度。 |