• CN：11-2187/TH
• ISSN：0577-6686

›› 2002, Vol. 38 ›› Issue (9): 77-82.

• 论文 •

### 径向可倾瓦轴承的热弹流润滑分析

1. 清华大学摩擦学国家重点实验室;青岛建筑工程学院
• 发布日期:2002-09-15

### TEHL ANALYSIS OF TILTING-PAD JOURNAL BEARINGS WITH NEWTON-RAPHSON METHOD

Chang Qiuying;Meng Yonggang;Wen Shizhu;Yang Peiran

1. Tsinghua University Qingdao Institute of Architecture and Engineering
• Published:2002-09-15

Abstract: Thermoelastohydrodynamic lubrication (TEHL) analysis is presented to investigate the static performance of tilting-pad journal bearings. Completely numerical solution is obtained. The Newton-Raphson method is employed to predict the bearing characteristics of the hydrodynamic pressure，the eccentricity and the pad attitude angles simultaneously. For the temperature calculation 3-D energy equations for the fluid under each pad and 3-D heat transfer equations for the pads are solved using a sequential sweeping method. The elastic deformation and thermal expansion of each pad are calculated with the 20-node iso-parameter finite element method. The results show that the elastic deformation is not so important as the thermal expansion.