Novel design and simulation of curved blade oil scoop with high oil capture efficiency

作     者：Jingwen QIN Hui GUO Huiqing JIANG Fuliang WANG Weiwei MAN Yaguo LYU Jingwen QIN;Hui GUO;Huiqing JIANG;Fuliang WANG;Weiwei MAN;Yaguo LYU

作者机构：School of Mechanical and Electrical EngineeringCentral South UniversityChangsha 410083China AECC Hunan Aviation Powerplant Research InstituteZhuzhou 412002China School of Power and EnergyNorthwestern Polytechnical UniversityXi’an 710129China 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2021年第34卷第9期

页      面：94-103页

核心收录：

学科分类：082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：The authors are grateful to Prof. Yun CHEN for discussions. They also thank the anonymous reviewers for their critical and constructive review of the manuscript 

主　　题：Bearing Capture efficiency Numerical simulation Oil scoop Under-race lubrication 

摘      要：As the load and working environment temperature increasing,high efficiency oil lubrication was urgently needed for the main bearing of ***,the low oil capture efficiency of radial oil scoop affects the application of under-race lubrication structure with radial oil *** this work,a novel design of curved blade oil scoop for under-race lubrication is proposed to improve the oil capture *** of all,the principle of relative velocity optimization is proposed by analyzing the collision process between blade and oil jet for theoretical ***,the theoretical curve equations of blade inlet under three different oil jet incidence conditions are *** that,the monotonicity of the theoretical curves is *** effects of rotation speed,oil jet velocity,eccentric distance of oil jet,and include angle of curve are *** location of the collision points of proposed theoretical curves are also been ***,a transient Computational Fluid Dynamics(CFD)simulation of the novel oil scoop design was carried *** simulation results show that the capture efficiency of curved blade oil scoop can be improved by 30%comparing to the traditional design.