Dynamic Modeling and Simulation of ball bearing faults in aero-engine dual rotor-bearing-stator coupling system

DOI

10.2991/jimec-17.2017.126How to use a DOI?

Keywords

dual rotor system; ball bearing; localized fault model; numerical integral

Abstract

In order to conduct the thorough research to the aero-engine, aiming at dual rotor-bearing system of practical aero-engine, a new dual rotor-ball bearing-stator coupling system dynamic model is established. stator motion, the flexible support, squeeze film damper(SDF)were considered in the model, meanwhile the nonlinear factors of ball bearing such as clearance of bearing, nonlinear Hertzian contract force between balls and races, and the varying compliance vibration because of periodical variety of the support stiffness were fully considered. On this basis, established the rolling bearing inner ring damage dynamics model in the coupling system and he Runge-Kutta method was used to simulate and analyze the system, the simulation results verify the dynamic character of the coupling dynamic model with localized bearing faults and show the model is correct and effective.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wei Zhang
AU  - Hao-hao He
AU  - An-bo Ming
AU  - Zheng-wei Yang
PY  - 2017/10
DA  - 2017/10
TI  - Dynamic Modeling and Simulation of ball bearing faults in aero-engine dual rotor-bearing-stator coupling system
BT  - Proceedings of the 2017 2nd Joint International Information Technology, Mechanical and Electronic Engineering Conference (JIMEC 2017)
PB  - Atlantis Press
SP  - 579
EP  - 584
SN  - 2352-538X
UR  - https://doi.org/10.2991/jimec-17.2017.126
DO  - 10.2991/jimec-17.2017.126
ID  - Zhang2017/10
ER  -