Lpv representation of unsteady aerodynamics and stall

Wayne W. Farrell, Michael P. Kinzel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Developing an aerodynamic system model adequate for control system design and testing is traditionally expensive and time intensive. Costs are associated with producing underlying aerodynamic models that require extensive wind tunnel testing or linearized abstractions of first-principle, aerodynamic-force analysis; both approaches leave room for improvement in terms of the cost, development time, and accuracy of the aerodynamic models. In the present work, an affine-linear parameter-varying model for aerodynamic loading of a 1-DOF flat plate is developed. Specifically, the flat plate loading is approximated using a lower-order, compact system model with calibration and evaluation over range of prescribed motions. These motions include aggressive pitch-hold motions as well as certain nonlinear aerodynamic effects such as light-moderate static at Re ~100000. It is believed that the findings from a flat plate can be later extended to similar models to design control systems for more complex systems.

Original languageEnglish (US)
Title of host publicationAIAA Scitech 2020 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105951
DOIs
StatePublished - 2020
EventAIAA Scitech Forum, 2020 - Orlando, United States
Duration: Jan 6 2020Jan 10 2020

Publication series

NameAIAA Scitech 2020 Forum
Volume1 PartF

Conference

ConferenceAIAA Scitech Forum, 2020
CountryUnited States
CityOrlando
Period1/6/201/10/20

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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