Article (Scientific journals)
Assessment of Geometric Nonlinearities Influence On NASA Rotor 37 Response to Blade Tip/Casing Rubbing Events
Delhez, Elise; Nyssen, Florence; Golinval, Jean-Claude et al.
2021In Journal of Engineering for Gas Turbines and Power
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Keywords :
Mechanical Engineering; Aerospace Engineering; Reduced Order Modeling; Contact
Abstract :
[en] This paper uses a recently derived reduction procedure to study the contact interactions of an industrial blade undergoing large displacements. The reduction technique consists in projecting the dynamical problem onto a reduction basis composed of Craig-Bampton modes and a selection of their modal derivatives. The internal nonlinear forces due to large displacements are evaluated with the stiffness evaluation procedure and contact is numerically handled using Lagrange multipliers. The numerical strategy is applied on an open industrial compressor blade model based on the NASA rotor 37 blade in order to promote reproducibility of results. Two contact scenarios are investigated: one with direct contact between the blade and the casing and one with an abradable material deposited on the casing. The influence of geometric nonlinearities is assessed in both cases. In particular, contact interaction maps and abradable coating wear pattern maps are used to identify the main interactions that can be detrimental for the engine integrity.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Delhez, Elise  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M)
Nyssen, Florence ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique ; Département de génie mécanique, Polytechnique Montréal, Montréal H3T 1J4, Canada
Golinval, Jean-Claude  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique
Batailly, Alain;  Département de génie mécanique, Polytechnique Montréal, Montréal H3T 1J4, Canada
Language :
English
Title :
Assessment of Geometric Nonlinearities Influence On NASA Rotor 37 Response to Blade Tip/Casing Rubbing Events
Publication date :
12 October 2021
Journal title :
Journal of Engineering for Gas Turbines and Power
ISSN :
0742-4795
eISSN :
1528-8919
Publisher :
ASME International
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]
Available on ORBi :
since 12 May 2022

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