Imperial College London

DrLoicSalles

Faculty of EngineeringDepartment of Mechanical Engineering

Research Fellow
 
 
 
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Contact

 

+44 (0)20 7594 2243l.salles Website

 
 
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Assistant

 

Mr Peter Higgs +44 (0)20 7594 7078

 
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Location

 

556City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Salles,
author = {Salles, L and Staples, B and Hoffmann, NP and Schwingshackl},
journal = {Nonlinear Dynamics},
title = {Nonlinear dynamic analysis of whole aeroengine models with harmonic balance method and continuation techniques for imperfect bifurcations and isolated solutions.},
url = {http://hdl.handle.net/10044/1/30876},
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - The analysis of whole engine rotor-dynamic models is an important element in the design of aerojetengines. The models include gyroscopic effects and allow for rubbing contact between rotor and statorcomponents such as bladed discs and casing. Due to the non-linearities inherent to the system, bifurcationsin the frequency response may arise. Reliable and efficient methods to determine the bifurcation pointsand solution branches are required. For this purpose a multi-harmonic balance approach is presented thatallows a numerically efficient detection of bifurcation points and the calculation of both continuous andisolated branches of the frequency response functions. The method is applied to a test-case derived from acommercial aero-engine. A bifurcation structure with continuous and isolated solution branches is observedand studied in this paper. The comparison with time-marching based on simulations shows both accuracyand numerical efficiency of the newly developed approach
AU - Salles,L
AU - Staples,B
AU - Hoffmann,NP
AU - Schwingshackl
SN - 1573-269X
TI - Nonlinear dynamic analysis of whole aeroengine models with harmonic balance method and continuation techniques for imperfect bifurcations and isolated solutions.
T2 - Nonlinear Dynamics
UR - http://hdl.handle.net/10044/1/30876
ER -