Traditionally, the optimization of a turbomachinery engine casing for tip clearance has involved either two-dimensional transient thermomechanical simulations or three-dimensional mechanical simulations. This paper illustrates that three-dimensional transient whole-engine thermomechanical simulations can be used within tip clearance optimizations and that the efficiency of such optimizations can be improved when a multifidelity surrogate modeling approach is employed. These simulations are employed in conjunction with a rotor suboptimization using surrogate models of rotor-dynamics performance, stress, mass and transient displacements, and an engine parameterization.
Multifidelity Multidisciplinary Whole-Engine Thermomechanical Design Optimization
Journal of Propulsion and Power ; 30 , 6 ; 1654-1666
2014-09-12
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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