[en] Several component of turbomachinery operate in nonlinear regime of vibration
during operation. We present in this work the state of the art techniques for analysing nonlinear vibration of turbomachinery. Most of the vibration anlayses are performed using frequency response for forced response problem. It is possible to use the concept of nonlinear normal modes and their adaptation for non conservative system. The periodic response are calculatedusing boundary value problem (BVP) solvers. We will present results using harmonic balance method and finite element in time techniques for non smooth dynamic problem. The work will conclude with presentation of challenge for the future in turbomachinery vibration analysis.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Salles, Loïc ; Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Vibration of Turbomachines ; Imperial College London > Mechanical Engineering > Vibration Technology University Center
Vizzaccaro, A
Sun, Y
Language :
English
Title :
Nonlinear Vibration in Aircraft Engines
Publication date :
2019
Event name :
7th International Conference on Nonlinear Vibrations, Localization and Energy Transfer
