This paper presents a preliminary design optimization study of a jet engine structure using a knowledge-based master modeling approach. The objective function is derived based on input-output relationships of a cost-performance model, where specific fuel consumption, pressure loss and direct cost are considered. The advantage of this problem formulation is that it entails a single composite objective function that takes into account mass, structural characteristics, dynamic response and translates them to a direct operational cost function to be minimized. A fan-blade-off scenario is considered as the loading case in this paper. The loss of one fan blade during nominal operation causes a rotor imbalance and structural deformation.
Jet Engine Design Optimization Using a Knowledge-Based Master Model
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Tyapin, I, Sandberg, M, Kokkolaras, M, Lundbladh, A, & Isaksson, O. "Jet Engine Design Optimization Using a Knowledge-Based Master Model." Proceedings of the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition. Volume 7: Structures and Dynamics, Parts A and B. Copenhagen, Denmark. June 11–15, 2012. pp. 41-47. ASME. https://doi.org/10.1115/GT2012-69309
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