@inproceedings{4e2b7016f9a44e3d86c2fa6291d07799,
title = "Reduced-Order Modeling of Aeroelasticity in Extreme Speed Turbochargers",
abstract = "Aircraft intermittent combustion engines often incorporate turbochargers that are adapted from ground-based applications to improve their efficiency and performance. These turbochargers experience conditions outside of their design operating envelope and are found to experience high-cycle fatigue brought on by aerodynamically-induced blade resonances. The onset of fluid-structural interactions, such as flutter and forced response, in turbochargers at these conditions has not been extensively studied. A reduced-order model of the aeroelastic response of the turbine is developed using the Euler-Lagrange equation informed by numerical data from uncoupled computational fluid dynamic (CFD) and computational structural dynamic (CSD) calculations. The structural response of the reduced-order model is derived from a method of assumed-modes approach. The unsteady fluid response is described by a modified version of piston theory as a first step towards including inhomogeneous aerodynamic forcing. Details of the reduced-order model are given. The capability of the reduced-order model to predict the presence of flutter from a subset of the uncoupled numerical simulation data is discussed.",
author = "Fellows, {David W.} and Bodony, {Daniel J.} and McGowan, {Ryan C.}",
note = "Publisher Copyright: {\textcopyright} 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.; AIAA Propulsion and Energy Forum, 2021 ; Conference date: 09-08-2021 Through 11-08-2021",
year = "2021",
doi = "10.2514/6.2021-3466",
language = "English (US)",
isbn = "9781624106118",
series = "AIAA Propulsion and Energy Forum, 2021",
publisher = "American Institute of Aeronautics and Astronautics Inc, AIAA",
booktitle = "AIAA Propulsion and Energy Forum, 2021",
}