The design of critical components for aerospace applications involves a number of conflicting functional requirements: reducing fuel consumption, cost, and weight, while enhancing performance, operability and robustness. As several materials systems and concepts remain competitive, a new approach that couples finite element analysis (FEA) and established multicriteria optimization protocols is developed in this paper. To demonstrate the approach, a prototypical materials selection problem for gas turbine combustor liners is chosen. A set of high temperature materials systems consisting of superalloys and thermal barrier coatings is considered as candidates. A thermo-mechanical FEA model of the combustor liner is used to numerically predict the response of each material system candidate. The performance of each case is then characterized by considering the material cost, manufacturability, oxidation resistance, damping behavior, thermomechanical properties, and the FEA postprocessed parameters relating to fatigue and creep. Using the obtained performance values as design criteria, an ELECTRE multiple attribute decision-making (MADM) model is employed to rank and classify the alternatives. The optimization model is enhanced by incorporating the relative importance (weighting factors) of the selection criteria, which is determined by multiple designers via a group decision-making process.
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November 2012
Research Papers
A Combined Finite Element-Multiple Criteria Optimization Approach for Materials Selection of Gas Turbine Components
A. Shanian,
A. Shanian
School of Engineering and Applied Sciences, Harvard University,
Cambridge, MA 02138,
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A. S. Milani,
A. S. Milani
School of Engineering, University of British Columbia-Okanagan,
Kelowna, BC, V1V 1V7, Canada
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N. Vermaak,
N. Vermaak
Materials Department, University of California Santa Barbara,
Santa Barbara, CA 93106
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K. Bertoldi,
K. Bertoldi
School of Engineering and Applied Sciences, Harvard University,
Cambridge, MA 02138
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T. Scarinci,
T. Scarinci
Rolls-Royce Canada, 9500 Cote de Liesse, Dorval, QC
, H8T 1A2 Canada
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M. Gerendas
M. Gerendas
Rolls-Royce Deutschland Ltd. & Co KG,
Dahlewitz, 15827, Germany
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A. Shanian
School of Engineering and Applied Sciences, Harvard University,
Cambridge, MA 02138,
A. S. Milani
School of Engineering, University of British Columbia-Okanagan,
Kelowna, BC, V1V 1V7, Canada
N. Vermaak
Materials Department, University of California Santa Barbara,
Santa Barbara, CA 93106
K. Bertoldi
School of Engineering and Applied Sciences, Harvard University,
Cambridge, MA 02138
T. Scarinci
Rolls-Royce Canada, 9500 Cote de Liesse, Dorval, QC
, H8T 1A2 Canada
M. Gerendas
Rolls-Royce Deutschland Ltd. & Co KG,
Dahlewitz, 15827, Germany
J. Appl. Mech. Nov 2012, 79(6): 061019 (8 pages)
Published Online: September 28, 2012
Article history
Received:
July 6, 2011
Revised:
March 19, 2012
Posted:
March 29, 2012
Published:
September 26, 2012
Online:
September 28, 2012
Citation
Shanian, A., Milani, A. S., Vermaak, N., Bertoldi, K., Scarinci, T., and Gerendas, M. (September 28, 2012). "A Combined Finite Element-Multiple Criteria Optimization Approach for Materials Selection of Gas Turbine Components." ASME. J. Appl. Mech. November 2012; 79(6): 061019. https://doi.org/10.1115/1.4006461
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