Reduced order modelling for the gust response of the ffast wing

Christopher Wales; Ann Gaitonde; Dorian Jones

Reduced order modelling for the gust response of the ffast wing

Christopher Wales, Ann Gaitonde, Dorian Jones

Research output: Chapter in Book/Report/Conference proceeding › Conference Contribution (Conference Proceeding)

1 Citation (Scopus)

Abstract

Results for the gust response of the FFAST wing calculated using computational fluid dynamics (CFD) and reduced order models (ROM) constructed using the eigensystem realisation algorithm (ERA) are presented. For larger amplitude gusts in the transonic regime, the response exhibits nonlinearity due to shock motion. This is not captured well by the standard ERA ROM presented here. In addition to the standard ERA, a corrected version is described which make use of nonlinear steady state solutions. This approach gives more accurate results for the large amplitude gusts, which exhibit nonlinearity.

Original language	English
Title of host publication	IFASD 2013 - International Forum on Aeroelasticity and Structural Dynamics
Publisher	Royal Aeronautical Society
Publication status	Published - 1 Jan 2013
Event	International Forum on Aeroelasticity and Structural Dynamics, IFASD 2013 - Bristol, United Kingdom Duration: 24 Jun 2013 → 27 Jun 2013

Conference

Conference	International Forum on Aeroelasticity and Structural Dynamics, IFASD 2013
Country	United Kingdom
City	Bristol
Period	24/06/13 → 27/06/13

Keywords

ERA
Gust
ROM

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title = "Reduced order modelling for the gust response of the ffast wing",

abstract = "Results for the gust response of the FFAST wing calculated using computational fluid dynamics (CFD) and reduced order models (ROM) constructed using the eigensystem realisation algorithm (ERA) are presented. For larger amplitude gusts in the transonic regime, the response exhibits nonlinearity due to shock motion. This is not captured well by the standard ERA ROM presented here. In addition to the standard ERA, a corrected version is described which make use of nonlinear steady state solutions. This approach gives more accurate results for the large amplitude gusts, which exhibit nonlinearity.",

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AU - Gaitonde, Ann

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N2 - Results for the gust response of the FFAST wing calculated using computational fluid dynamics (CFD) and reduced order models (ROM) constructed using the eigensystem realisation algorithm (ERA) are presented. For larger amplitude gusts in the transonic regime, the response exhibits nonlinearity due to shock motion. This is not captured well by the standard ERA ROM presented here. In addition to the standard ERA, a corrected version is described which make use of nonlinear steady state solutions. This approach gives more accurate results for the large amplitude gusts, which exhibit nonlinearity.

AB - Results for the gust response of the FFAST wing calculated using computational fluid dynamics (CFD) and reduced order models (ROM) constructed using the eigensystem realisation algorithm (ERA) are presented. For larger amplitude gusts in the transonic regime, the response exhibits nonlinearity due to shock motion. This is not captured well by the standard ERA ROM presented here. In addition to the standard ERA, a corrected version is described which make use of nonlinear steady state solutions. This approach gives more accurate results for the large amplitude gusts, which exhibit nonlinearity.

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M3 - Conference Contribution (Conference Proceeding)

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PB - Royal Aeronautical Society

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