In the context of turbomachinery design, a small variation in the blade characteristics due to manufacturing tolerances can affect the structural symmetry creating mistuning which increases the forced response. However, it is possible to detune the mistuned system in order to reduce the forced response amplification. The main technological methods to introduce detuning are based on modifying either the blade material properties, either the interface between blades and disk, or the blade shapes. This paper presents a robustness analysis of mistuning for a given detuning in blade geometry. Detuning is performed by modifying blade shapes. The different types of blades, obtained by those modifications, are then distributed on the disk circumference. A new reduced-order model of the detuned disk is introduced. It is based on the use of the cyclic modes of the different sectors which can be obtained from a usual cyclic symmetry modal analysis. Finally, the robustness of the computational model responses with respect to uncertainties, is performed with a stochastic analysis using a nonparametric probabilistic approach of uncertainties which allows both the system-parameter uncertainties and the modeling errors to be taken into account.
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e-mail: moustapha.mbaye@univ-paris-est.fr
e-mail: christian.soize@univ-paris-est.fr
e-mail: evangeline.capiezlernout@univ-paris-est.fr
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March 2013
Research-Article
Robust Analysis of Design in Vibration of Turbomachines
Moustapha Mbaye,
e-mail: moustapha.mbaye@univ-paris-est.fr
Moustapha Mbaye
Laboratoire de Modélisation et Simulation Multi Echelle
,Université Paris-Est
,MSME UMR 8208 CNRS
,5 bd Descartes
,77454 Marne-la-Vallée
, France
;Turbomeca - Safran Group
,64511 Bordes
, France
e-mail: moustapha.mbaye@univ-paris-est.fr
Search for other works by this author on:
Christian Soize,
e-mail: christian.soize@univ-paris-est.fr
Christian Soize
1
Laboratoire de Modélisation et Simulation Multi Echelle
,Université Paris-Est
,MSME UMR 8208 CNRS
,5 bd Descartes
,77454 Marne-la-Vallée
, France
e-mail: christian.soize@univ-paris-est.fr
1Corresponding author.
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Evangeline Capiez-Lernout
e-mail: evangeline.capiezlernout@univ-paris-est.fr
Evangeline Capiez-Lernout
Laboratoire de Modélisation et Simulation Multi Echelle
,Université Paris-Est
,MSME UMR 8208 CNRS
,5 bd Descartes
,77454 Marne-la-Vallée
, France
e-mail: evangeline.capiezlernout@univ-paris-est.fr
Search for other works by this author on:
Moustapha Mbaye
Laboratoire de Modélisation et Simulation Multi Echelle
,Université Paris-Est
,MSME UMR 8208 CNRS
,5 bd Descartes
,77454 Marne-la-Vallée
, France
;Turbomeca - Safran Group
,64511 Bordes
, France
e-mail: moustapha.mbaye@univ-paris-est.fr
Christian Soize
Laboratoire de Modélisation et Simulation Multi Echelle
,Université Paris-Est
,MSME UMR 8208 CNRS
,5 bd Descartes
,77454 Marne-la-Vallée
, France
e-mail: christian.soize@univ-paris-est.fr
Jean-Philippe Ousty
Evangeline Capiez-Lernout
Laboratoire de Modélisation et Simulation Multi Echelle
,Université Paris-Est
,MSME UMR 8208 CNRS
,5 bd Descartes
,77454 Marne-la-Vallée
, France
e-mail: evangeline.capiezlernout@univ-paris-est.fr
1Corresponding author.
Contributed by the International Gas Turbine Institute (IGTI) of ASME for publication in the Journal of Turbomachinery. Manuscript received September 8, 2010; final manuscript received April 14, 2012; published online November 1, 2012. Assoc. Editor: Matthew Montgomery.
J. Turbomach. Mar 2013, 135(2): 021008 (8 pages)
Published Online: November 1, 2012
Article history
Received:
September 8, 2010
Revision Received:
April 14, 2012
Citation
Mbaye, M., Soize, C., Ousty, J., and Capiez-Lernout, E. (November 1, 2012). "Robust Analysis of Design in Vibration of Turbomachines." ASME. J. Turbomach. March 2013; 135(2): 021008. https://doi.org/10.1115/1.4007442
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