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航空发动机高速滚珠轴承振动特性研究

Vibration Characteristics of High-Speed Ball Bearing of Aero-Engines
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摘要 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.
作者 唐云冰 章璟璇 施玲玲 谢小虎 Yun-bing Tang;Jing-xuan Zhang;Ling-ling Shi;Xiao-hu Xie(Changzhou E&E Turbo-Power Co.,Ltd.)
出处 《风机技术》 2023年第3期59-65,共7页 Chinese Journal of Turbomachinery
基金 National Natural Science Foundation of China(51775267)*。
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