Research of Nonlinear Vibration of Aero-Engine in Windmilling Imbalance with Wing Degree-of-freedom

DOI

10.2991/ameii-15.2015.231How to use a DOI?

Keywords

windmilling; nonlinear vibration; wing degree-of-freedom; rotor/stator system

Abstract

The rotor non-isotropic produced nonlinear vibration of aero-engine in windmilling would cause serious danger to flight security. So the research of vibration character in windmilling should go further. In this paper, the kinematic equation of the rotor/stator/wing system is established based on Jeffcott rotor and flexible supported stator interaction system. Afterwards, the nonlinear kinematic differential equation is solved with state space method and both the amplitude of wing and orbit of rotor/stator in different twirling speed are obtained. The result has presented that the rotor non-isotropic will evoke larger amplitude of rotor/stator in lower windmilling speed and increase the probability of flight disaster if wing DOF is considered.

Copyright

© 2015, 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  - Shuang Liu
AU  - Wei Wang
PY  - 2015/04
DA  - 2015/04
TI  - Research of Nonlinear Vibration of Aero-Engine in Windmilling Imbalance with Wing Degree-of-freedom
BT  - Proceedings of the International Conference on Advances in Mechanical Engineering and Industrial Informatics
PB  - Atlantis Press
SP  - 1250
EP  - 1256
SN  - 2352-5401
UR  - https://doi.org/10.2991/ameii-15.2015.231
DO  - 10.2991/ameii-15.2015.231
ID  - Liu2015/04
ER  -