This paper is concerned with robust aerodynamic design of compressor blades against erosion. The proposed approach combines a multiobjective genetic algorithm with geometry modeling methods, high-fidelity computational fluid dynamics, and surrogate models to arrive at robust designs on a limited computational budget. The multiobjective formulation used here allows explicit trade-off between the mean and variance of the performance to be carried out. Detailed numerical studies are presented for robust geometric design of a typical compressor fan blade section to illustrate the proposed methodology. The performance of a selected robust optimal solution on the Pareto front is compared to a deterministic optimal solution to demonstrate that significant improvements in the mean shift and variance can be achieved.
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e-mail: p.b.nair@soton.ac.uk
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July 2006
Research Papers
Robust Design of Compressor Fan Blades Against Erosion
Apurva Kumar,
Apurva Kumar
Computational Engineering and Design Group, School of Engineering Sciences,
University of Southampton
, Highfield, Southampton SO17 1BJ, UK
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Andy J. Keane,
Andy J. Keane
Computational Engineering and Design Group, School of Engineering Sciences,
University of Southampton
, Highfield, Southampton SO17 1BJ, UK
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Prasanth B. Nair,
Prasanth B. Nair
Computational Engineering and Design Group, School of Engineering Sciences,
e-mail: p.b.nair@soton.ac.uk
University of Southampton
, Highfield, Southampton SO17 1BJ, UK
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Shahrokh Shahpar
Shahrokh Shahpar
Aerothermal Methods,
Rolls-Royce Plc. Derby
, DE24 8BJ, UK
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Apurva Kumar
Computational Engineering and Design Group, School of Engineering Sciences,
University of Southampton
, Highfield, Southampton SO17 1BJ, UK
Andy J. Keane
Computational Engineering and Design Group, School of Engineering Sciences,
University of Southampton
, Highfield, Southampton SO17 1BJ, UK
Prasanth B. Nair
Computational Engineering and Design Group, School of Engineering Sciences,
University of Southampton
, Highfield, Southampton SO17 1BJ, UKe-mail: p.b.nair@soton.ac.uk
Shahrokh Shahpar
Aerothermal Methods,
Rolls-Royce Plc. Derby
, DE24 8BJ, UKJ. Mech. Des. Jul 2006, 128(4): 864-873 (10 pages)
Published Online: January 18, 2006
Article history
Received:
September 16, 2005
Revised:
January 18, 2006
Citation
Kumar, A., Keane, A. J., Nair, P. B., and Shahpar, S. (January 18, 2006). "Robust Design of Compressor Fan Blades Against Erosion." ASME. J. Mech. Des. July 2006; 128(4): 864–873. https://doi.org/10.1115/1.2202886
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