Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach

Abstract The fluid structure interaction analysis for structures exhibiting large deformations is carried out by using a strong coupling method, in which a fixed point method with Aitken’s dynamic relaxation is employed to accelerate convergence of the coupling iteration, and geometrically exact bea...

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Autores principales:	Mingliang Yu, Xueyuan Nie, Guowei Yang, Peinan Zhong
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c10d6fbbe7054b8bae4eeec5b6850d17
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spelling	oai:doaj.org-article:c10d6fbbe7054b8bae4eeec5b6850d172021-12-02T17:45:12ZFixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach10.1038/s41598-020-66854-52045-2322https://doaj.org/article/c10d6fbbe7054b8bae4eeec5b6850d172020-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-66854-5https://doaj.org/toc/2045-2322Abstract The fluid structure interaction analysis for structures exhibiting large deformations is carried out by using a strong coupling method, in which a fixed point method with Aitken’s dynamic relaxation is employed to accelerate convergence of the coupling iteration, and geometrically exact beam approach initiated by Simo is adopted to simulate the nonlinear flexible beam models. An improved implicit time integration algorithm is given to improve the computation accuracy of structural dynamics. To verify the validity of the fixed-point method in the compressible flows which is usually used in incompressible fluid, it is applied for flutter analysis of AGARD 445.6 wing in the transonic regime. The case of flow-induced vibration of a flexible beam demonstrates that the approach based on geometrically exact beam theory is suitable for the fluid structure interaction analysis and the fixed-point method with Aitken’s relaxation is of great efficiency and robustness in the FSI computation.Mingliang YuXueyuan NieGuowei YangPeinan ZhongNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-16 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mingliang Yu Xueyuan Nie Guowei Yang Peinan Zhong Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach
description	Abstract The fluid structure interaction analysis for structures exhibiting large deformations is carried out by using a strong coupling method, in which a fixed point method with Aitken’s dynamic relaxation is employed to accelerate convergence of the coupling iteration, and geometrically exact beam approach initiated by Simo is adopted to simulate the nonlinear flexible beam models. An improved implicit time integration algorithm is given to improve the computation accuracy of structural dynamics. To verify the validity of the fixed-point method in the compressible flows which is usually used in incompressible fluid, it is applied for flutter analysis of AGARD 445.6 wing in the transonic regime. The case of flow-induced vibration of a flexible beam demonstrates that the approach based on geometrically exact beam theory is suitable for the fluid structure interaction analysis and the fixed-point method with Aitken’s relaxation is of great efficiency and robustness in the FSI computation.
format	article
author	Mingliang Yu Xueyuan Nie Guowei Yang Peinan Zhong
author_facet	Mingliang Yu Xueyuan Nie Guowei Yang Peinan Zhong
author_sort	Mingliang Yu
title	Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach
title_short	Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach
title_full	Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach
title_fullStr	Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach
title_full_unstemmed	Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach
title_sort	fixed-point fluid structure interaction analysis based on geometrically exact approach
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/c10d6fbbe7054b8bae4eeec5b6850d17
work_keys_str_mv	AT mingliangyu fixedpointfluidstructureinteractionanalysisbasedongeometricallyexactapproach AT xueyuannie fixedpointfluidstructureinteractionanalysisbasedongeometricallyexactapproach AT guoweiyang fixedpointfluidstructureinteractionanalysisbasedongeometricallyexactapproach AT peinanzhong fixedpointfluidstructureinteractionanalysisbasedongeometricallyexactapproach
_version_	1718379610916257792

Fixed-Point Fluid structure interaction analysis BASED ON geometrically exact approach

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