Linear frequency domain reduced order modelling of aerofoil gust response

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Abstract

A method for constructing reduced order models of an aerofoil subject to gusts is presented. The method is based on subspace system identification in the frequency domain in order to obtain a model which retains the dynamic information of the original system, while having a comparatively smaller dimension. The gust is prescribed through the domain using the split velocity method to obtain the system frequency response. This is used to find the state matrices of the reduced system. By prescribing a series of 1-cosine gusts, it is shown that the reduced system obtained agrees well with the original system.
Original languageEnglish
Title of host publication46th AIAA Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages20
ISBN (Electronic)9781624104367
DOIs
Publication statusPublished - 13 Jun 2016
Event46th AIAA Fluid Dynamics Conference, 2016 - Washington, United States
Duration: 13 Jun 201617 Jun 2016

Conference

Conference46th AIAA Fluid Dynamics Conference, 2016
Country/TerritoryUnited States
CityWashington
Period13/06/1617/06/16

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