التفاصيل البيبلوغرافية
| العنوان: |
Static Characterization of Porous Tilting Pad Bearing Considering Pivot Offset. (English) |
| المؤلفون: |
XU Shicheng, LIU Jiabao, XIE Shaozhang, GUO Xueyan, XIA Peng |
| المصدر: |
Lubrication Engineering (0254-0150); 2024, Vol. 49 Issue 6, p177-184, 8p |
| مصطلحات موضوعية: |
PIVOT bearings, GAS-lubricated bearings, ECCENTRICS (Machinery), TEMPERATURE effect, SUPPLY & demand |
| مستخلص: |
In order to investigate the effect of pad pivot offset on the static performance of porous tilting pad bearings,a thermal hybrid lubrication model of porous tilting pad bearings was proposed,and Fluent software was used to analyze the static characteristics of the bearings.The grid iteration algorithm and the pad motion UDF were used to simulate the motion and swing of each pad of the bearing along the pivot,and the effects of eccentricity,rotor speed,gas supply pressure and pivot offset on bearing load capacity,mass leakage,friction torque and temperature rise were studied.The results show that increasing the bearing pivot offset can improve the bearing load capacity,especially under conditions of high eccentricity, high speed, and low gas supply pressure,the increase in bearing load is more significant. When the eccentricity and speed are the same, appropriate pivot offset can significantly reduce the gas consumption of the bearing. However,pivot offset increases the frictional torque, causing the rotor temperature to rise. Therefore,a reasonable pivot offset should be selected to avoid the adverse effects of temperature rise on the bearings. This study provide a reference for the optimization design of porous tilting pad bearings. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
