التفاصيل البيبلوغرافية
العنوان: |
Effect of cutting and feed speed on lubrication performance of large hydrostatic turntable with constant linear velocity. |
المؤلفون: |
Yanqin, Zhang, Rong, Zhao, Jianting, Tao, Mulan, Wang, Pengrui, Kong |
المصدر: |
Lubrication Science; Jun2024, Vol. 36 Issue 4, p330-340, 11p |
مصطلحات موضوعية: |
LINEAR velocity, TURNTABLES, SPEED, FLUID-film bearings, BINDING constant, ELASTOHYDRODYNAMIC lubrication, LUBRICATION & lubricants |
مستخلص: |
The oil film lubrication performance of a large hydrostatic turntable operating at the model of constant surface cutting speed is studied. Firstly, the rotary speed equation which is bound by the constant surface cutting speed is established. According to the fluid lubrication theory, the gap flow equation, the oil film temperature rise equation and the double‐rectangular‐cavity oil pad bearing capacity equation are derived. Further, a prediction model of oil film lubrication performance in the operating mode is established. The change rules of temperature, pressure and other performance indexes of the film with time are obtained by numerical simulation. And, the above laws are verified by design experiments. It is found that the cutting speed, feed rate leaves a significant impact on the law of variations of oil film performance with time. According to the conclusions, it will be beneficial to improve the bearing capacity of the hydrostatic turntable and further improve the machining accuracy by using cutting parameters reasonably to control the speed within a certain range. [ABSTRACT FROM AUTHOR] |
|
Copyright of Lubrication Science is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
قاعدة البيانات: |
Complementary Index |