2D Simulation of the Aerodynamic Micro Air Journal Bearing for Micro Gas Turbine Engine

摘要：

　　A micro air journal bearing for micro gas turbine engine is designed in this paper.2D simulation of the aerodynamic micro air bearing is conducted to investigate the effect of the main parameters of the air bearing on the load capacity,including the clearance between the air bearing and shaft,the gear number and height of the air journal bearing,the rotational speed of rotor.The optimum value of the important parameters are explored and presented.The time correlation method is used to solve the RANS (Reynolds Averaged Navier-Stokes) equations.Requirements both from load capacity and motion stability is considered and compromised for a better and stable performance of the air journal bearing.The shaft is stably rotated in a relatively low speed of 1.18× 105rpm,which is much lower than other researches and can be achieved easily.

关键词： micro air journal bearing micro gas turbine engine aerodynamic simulation

作者: Zhaoqi Zeng Yukui Wang Zhenlong Wang

作者单位: School of Mechanical Engineering, Harbin Institute of Technology, Harbin, P.R.China, 150001;Key Labo School of Mechanical Engineering, Harbin Institute of Technology, Harbin, P.R.China, 150001;School o

会议类型: 国际会议

会议名称: the Second International Conference on Frontiers of Manufacturing and Design Science(第二届制造与设计科学国际会议(ICFMD 2011))

会议地点: 台湾

会议语种:英文

页码: 3087-3091

在线出版日期: 2011-12-11（万方平台首次上网日期，不代表论文的发表时间）