Accurate structural modeling of blisk mistuning is critical for the analysis of forced response in turbomachinery. Apart from intentional mistuning, mistuning can be due to the manufacturing tolerances, corrosion, foreign object damage, and in-service wear in general. It has been shown in past studies that mistuning can increase the risk of blade failure due to energy localization. For weak blade to blade coupling, this localization has been shown to be critical and higher amplitudes of vibration are expected in few blades. This paper presents a comparison of three reduced order models (ROMs) for the structural modeling of blisks. Two of the models assume cyclic symmetry, while the third model is free of this assumption. The performance of the reduced order models for cases with small and large amount of mistuning will be examined. The benefits and drawbacks of each reduction method will be discussed.
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June 2017
Research-Article
Forced Response Analysis of a Mistuned, Compressor Blisk Comparing Three Different Reduced Order Model Approaches
Mauricio Gutierrez Salas,
Mauricio Gutierrez Salas
Heat and Power Technology,
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: maugut@kth.se
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: maugut@kth.se
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Paul Petrie-Repar,
Paul Petrie-Repar
Heat and Power Technology,
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: paul.petrie-repar@energy.kth.se
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: paul.petrie-repar@energy.kth.se
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Torsten Fransson,
Torsten Fransson
Heat and Power Technology,
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: torsten.fransson@energy.kth.se
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: torsten.fransson@energy.kth.se
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Damian M. Vogt
Damian M. Vogt
ITSM—Institute of Thermal Turbomachinery and
Machinery Laboratory,
University of Stuttgart,
Stuttgart 70569, Germany
e-mail: damian.vogt@itsm.uni-stuttgart.de
Machinery Laboratory,
University of Stuttgart,
Stuttgart 70569, Germany
e-mail: damian.vogt@itsm.uni-stuttgart.de
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Mauricio Gutierrez Salas
Heat and Power Technology,
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: maugut@kth.se
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: maugut@kth.se
Ronnie Bladh
Hans Mårtensson
Paul Petrie-Repar
Heat and Power Technology,
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: paul.petrie-repar@energy.kth.se
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: paul.petrie-repar@energy.kth.se
Torsten Fransson
Heat and Power Technology,
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: torsten.fransson@energy.kth.se
Royal Institute of Technology,
Stockholm 10044, Sweden
e-mail: torsten.fransson@energy.kth.se
Damian M. Vogt
ITSM—Institute of Thermal Turbomachinery and
Machinery Laboratory,
University of Stuttgart,
Stuttgart 70569, Germany
e-mail: damian.vogt@itsm.uni-stuttgart.de
Machinery Laboratory,
University of Stuttgart,
Stuttgart 70569, Germany
e-mail: damian.vogt@itsm.uni-stuttgart.de
1Corresponding author.
2Present address: Siemens Energy, Inc., Orlando, FL 32817.
Contributed by the Structures and Dynamics Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received September 16, 2016; final manuscript received September 20, 2016; published online January 18, 2017. Editor: David Wisler.
J. Eng. Gas Turbines Power. Jun 2017, 139(6): 062501 (12 pages)
Published Online: January 18, 2017
Article history
Received:
September 16, 2016
Revised:
September 20, 2016
Citation
Salas, M. G., Bladh, R., Mårtensson, H., Petrie-Repar, P., Fransson, T., and Vogt, D. M. (January 18, 2017). "Forced Response Analysis of a Mistuned, Compressor Blisk Comparing Three Different Reduced Order Model Approaches." ASME. J. Eng. Gas Turbines Power. June 2017; 139(6): 062501. https://doi.org/10.1115/1.4035209
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