弹性环式挤压油膜阻尼器一体化圆柱滚子轴承保持架振动特性分析

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摘要航空发动机主轴中滚动轴承为了降低系统振动经常与弹性环式挤压油膜阻尼器(Elastic Ring Squeeze Film Damper，ERSFD)联合使用。基于滚动轴承动力学理论和流体力学控制方程，采用变步长积分算法(GSTIFF)建立圆柱滚子轴承与ERSFD耦合的动力学分析模型，对外圈带ERSFD的圆柱滚子轴承保持架振动特性和打滑率进行研究。研究结果表明：与未装配ERSFD的圆柱滚子轴承相比，ERSFD可以提高圆柱滚子轴承保持架的稳定性。过大或过小的弹性环凸台数量与宽度都不利于圆柱滚子轴承保持架的稳定性，需要选择合适的凸台数量和宽度。径向载荷与转速对带弹性环的圆柱滚子轴承保持架稳定性影响显著，保持架涡动频率的谐波次数随着径向载荷的增加而减少，其对应的幅值也减小；保持架涡动频率的谐波次数随着转速的增加而增加，其对应幅值也增加。

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	王树涵1
	2
	杨海生1
	唐瑞2
	罗斌2
	杨小民1
	邓四二1

关键词 ：圆柱滚子轴承, 弹性环式挤压油膜阻尼器, 轴承动力学, 保持架振动特性, 保持架打滑率

Abstract：Rolling bearings in aero-engine spindles are often used in conjunction with Elastic Ring Squeeze Film Damper (ERSFD) in order to reduce system vibration. Based on rolling bearing dynamics theory and hydrodynamic control equations, the dynamics analysis model of cylindrical roller bearing coupled with ERSFD is established by using the Gear stiff integral algorithm with variable step (GSTIFF), and the vibration characteristics and slip rate of cylindrical roller bearing cage with ERSFD on the outer ring are studied. The results show that ERSFD can improve the stability of cylindrical roller bearing cage compared with the cylindrical roller bearing without ERSFD assembly. Too large or too small number and width of the elastic ring bosses are not conducive to the stability of cylindrical roller bearing cages, and suitable number and width of bosses need to be selected. Radial load and rotational speed have significant effects on the stability of cylindrical roller bearing cage with elastic ring squeeze film damper. Harmonic number of cage vortex frequency decreases with the increase of radial load, and its corresponding amplitude decreases; harmonic number of cage vortex frequency increases with the increase of rotational speed, and its corresponding amplitude increases.

Key words： cylindrical roller bearings elastic ring squeeze film damper dynamics of bearing vibration characteristics of cage cage slip ratio

收稿日期: 2023-01-03 出版日期: 2024-03-15

引用本文:

王树涵1,2，杨海生1，唐瑞2，罗斌2，杨小民1，邓四二1. 弹性环式挤压油膜阻尼器一体化圆柱滚子轴承保持架振动特性分析[J]. 振动与冲击, 2024, 43(5): 302-314.
WANG Shuhan1,2,YANG Haisheng1,TANG Rui2,LUO Bin2,YANG Xiaomin1,DENG Si’er1. Vibration characteristics of cage of cylindrical roller bearing integrated with elastic ring squeeze film damper. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(5): 302-314.

链接本文:

http://jvs.sjtu.edu.cn/CN/ 或 http://jvs.sjtu.edu.cn/CN/Y2024/V43/I5/302

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