Vibration characteristics of cage of cylindrical roller bearing integrated with elastic ring squeeze film damper

WANG Shuhan1,2,YANG Haisheng1,TANG Rui2,LUO Bin2,YANG Xiaomin1,DENG Si’er1

Journal of Vibration and Shock ›› 2024, Vol. 43 ›› Issue (5) : 302-314.

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PDF(4450 KB)
Journal of Vibration and Shock ›› 2024, Vol. 43 ›› Issue (5) : 302-314.

Vibration characteristics of cage of cylindrical roller bearing integrated with elastic ring squeeze film damper

  • WANG Shuhan1,2,YANG Haisheng1,TANG Rui2,LUO Bin2,YANG Xiaomin1,DENG Si’er1
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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

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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[J]. Journal of Vibration and Shock, 2024, 43(5): 302-314

References

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