Reaction Torque of Gas Foil Journal Bearing with Misalignment
[摘要] In a rotor gas foil bearing system, zero misalignment can usually not be ensured for assembly errors or creep deformation of the base. The tilting attitude of the journal makes lubricant performance worse. To study the performance of a gas foil journal bearing with misalignment, effect of misalignment on gas film thickness is introduced into the lubrication model. The two typical misalignment attitudes of the journal were defined as radial tilting and tangential tilting. The results show that reaction torques increase with the tilting angle of the journal. A larger eccentricity leads to a larger reaction torque. This work provides a reference for prediction about the self-action of gas foil journal bearing for misalignment.
[发布日期] [发布机构] Beijing Institute of Control Engineering, Beijing, China^1;Beijing Engineering Research Centre of Efficient and Green Aerospace Propulsion Technology, Beijing, China^2
[效力级别] 机械制造 [学科分类]
[关键词] Assembly error;Creep deformations;Foil journal bearing;Gas film thickness;Gas foil bearing;Lubricant performance;Lubrication models;Reaction torques [时效性]
