6533b832fe1ef96bd129abff

RESEARCH PRODUCT

Jet Engine Design Optimization Using a Knowledge-Based Master Model

Ilya TyapinAnders LundbladhMichael KokkolarasMarcus SandbergOla Isaksson

subject

Pressure dropStructure (mathematical logic)Engineeringbusiness.industryRotor (electric)Mechanical engineeringFunction (mathematics)Jet enginelaw.inventionlawControl theoryFuel efficiencyThrust specific fuel consumptionbusinessFan blade

description

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.Copyright © 2012 by ASME

yearjournalcountryeditionlanguage
2012-06-11Volume 7: Structures and Dynamics, Parts A and B
https://doi.org/10.1115/gt2012-69309