Linear frequency domain reduced order modelling of aerofoil gust response

Amir K. Bagheri; Dorian P. Jones; Ann L. Gaitonde

doi:10.2514/6.2016-4260

Linear frequency domain reduced order modelling of aerofoil gust response

Amir K. Bagheri, Dorian P. Jones, Ann L. Gaitonde

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

2 Citations (Scopus)

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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 language	English
Title of host publication	46th AIAA Fluid Dynamics Conference
Publisher	American Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages	20
ISBN (Electronic)	9781624104367
DOIs	https://doi.org/10.2514/6.2016-4260
Publication status	Published - 13 Jun 2016
Event	46th AIAA Fluid Dynamics Conference, 2016 - Washington, United States Duration: 13 Jun 2016 → 17 Jun 2016

Conference

Conference	46th AIAA Fluid Dynamics Conference, 2016
Country/Territory	United States
City	Washington
Period	13/06/16 → 17/06/16

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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.",

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AU - Jones, Dorian P.

AU - Gaitonde, Ann L.

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N2 - 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.

AB - 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.

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DO - 10.2514/6.2016-4260

M3 - Conference Contribution (Conference Proceeding)

BT - 46th AIAA Fluid Dynamics Conference

PB - American Institute of Aeronautics and Astronautics Inc. (AIAA)

T2 - 46th AIAA Fluid Dynamics Conference, 2016

Y2 - 13 June 2016 through 17 June 2016

ER -

Linear frequency domain reduced order modelling of aerofoil gust response

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