Rapid low fidelity turbomachinery disk optimization

Authors:
David P. Gutzwiller;Mark G. Turner
Affiliations:
University of Cincinnati, Department of Aerospace Engineering, 745 Baldwin Hall ML 0070, PO Box 210070, Cincinnati, OH 45221-0070, USA;University of Cincinnati, Department of Aerospace Engineering, 745 Baldwin Hall ML 0070, PO Box 210070, Cincinnati, OH 45221-0070, USA
Venue:
Advances in Engineering Software
Year:
2010

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Abstract

Turbomachinery disks are heavy, highly stressed components used in gas turbines. Improved design of turbomachinery disks could yield a significant reduction in engine weight. This paper focuses on rapid low fidelity design and optimization of isotropic and transversely isotropic disks. Discussion includes the development of a one dimensional plane stress model, disk parameterization methods, and the implementation of a genetic algorithm for shape optimization. Three traditional geometry definition methods are compared to two new methods that are described and produce more optimum designs. Hardware from the GE E^3 is used as an example. The analysis code is open-source, graphical, interactive, and portable on Windows, Linux, and Mac OS X.