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航空发动机高速滚动轴承力学特性研究: 作者： 唐云冰 来源： 南京航空航天大学 年份： 2016 文献类型： 学位论文 关键词： 打滑滚动轴承载荷分布变刚度振动等效刚度表面波纹度疲劳寿命; 描述： 研制的需要,进行航空发动机高速滚动轴承的研究十分必要。本文围绕航空发动机高速滚动轴承的力学特性,开展了以下工作:(1)分别采用拟动力学法和有限元法,建立了滚动轴承力学分析模型,研究了滚动轴承的载荷分布

航空发动机高速滚珠轴承振动特性研究（英文）: 作者： 唐云冰 章璟璇施玲玲谢小虎 来源： 风机技术 年份： 2023 文献类型： 期刊 关键词： Ball Vibration Aerospace Propulsion Passage Waviness System Bearing Surface; 描述： Ball bearing is widely used as rotor supporting.It is a non/negligible source of vibration in aero/engines.The vibration characteristics of the highspeed ball bearing are studied in this paper.Bearing kinematics theory is applied to discuss the basic characteristics of ball bearings.The vibration factors caused by ball bearings are analyzed,and then the vibration model of ball bearings is set up.The effect of the unbalance,the ball passage vibration,the radial clearance and the surface waviness are considered.It is found that the ball passage vibration is excited by the contact force between the balls and the races.Increasing the numbers of ball can reduce the vibration amplitude.The surface waviness which is caused due to the geometric imperfection of ball bearings is considered as one of the important vibration sources of bearing systems.

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