| 1. | Experimental research for gear pair lubricating oil film thickness 齿轮副润滑油膜厚度的实验研究 |
| 2. | Lubricating fluid field and rotor dynamics are very important to the safe operation of the unit 在轴承中,转子与润滑油膜的动特性一直是国内外研究的热点。 |
| 3. | The optimize design of roller radius is discussed based on the touch intensit y and the thickness of lube film in this paper 从接触应力和润滑油膜厚度两方面入手,进行滚子半径的综合设计。 |
| 4. | Roller radius sizes of slave mechanism of cam machin e affect the touch - stress of touch region and the thickness of lube film directl y 凸轮机构从动件滚子半径的大小直接影响凸轮副接触处的接触应力和润滑油膜厚度并影响凸轮机构的寿命和运动精度。 |
| 5. | Abstract : roller radius sizes of slave mechanism of cam machin e affect the touch - stress of touch region and the thickness of lube film directl y 文摘:凸轮机构从动件滚子半径的大小直接影响凸轮副接触处的接触应力和润滑油膜厚度并影响凸轮机构的寿命和运动精度。 |
| 6. | It has been studied quite extensively in the past . when the rotor vibrating , a net force is exerted on fluid field , which will change the rotor ' s vibration on the same time 转子与润滑油膜的关系可以概括为“相互影响,相互制约” ,转子的运动会改变润滑流场情况,润滑流场的改变又反作用于转子。 |
| 7. | Then we can estimate the lubrication state between the friction faces . with the old large numbers of testing numbers the wear parameter k of every point on the steady work ' s cam can be decided 通过计算凸轮表面各位置润滑油膜厚度,判断其润滑状态,结合以前大量的实验数据,确定出凸轮各位置在稳态下工作时的磨损系数k值。 |
| 8. | When the rotor to ground voltage is exceed the critical oil film threshold voltage , the oil film breakdown induce a large current , and even appear electric discharge machining ( edm ) current . therefore , the lubricate interface is damaged 当电压超过了润滑油膜所能承受的电压时,油膜被击穿出现很大的放电电流,甚至出现电火花,导致润滑界面的破坏。 |
| 9. | Owing to unsteady ship driving power , vibration of ship body , sealing function of seal part and variable stern flow companying with rotating propeller , the unsteady force results to vibration of ship shaft , which makes the oil film of stern journal bearing vibrate 由于船舶动力的非稳定性、船体的振动、尾轴密封装置的密封作用及螺旋桨的不均匀伴流作用,导致尾轴振动,使得尾轴承润滑油膜涡动。 |
| 10. | The common mode voltage has high abrupt transformation rate because of the fast switching devices , whose dv / dt can exceed 6000 v / us . under so high dv / dt , the oil film acts as a capacitor and provides a charging mechanism for rotor shaft voltage buildup 由于变频器的高开关频率,导致共模电压具有很高的电压变化率,其dv dt可以达到6000v us以上,在如此高的电压变化率下,润滑油膜充当了电容的作用对转轴进行充电,形成轴电压。 |