Modeling and analysis of high aspect ratio wing considering random structural parameters

Abstract With the application of advanced composite materials in High-Aspect-Ratio wings (HARW), the randomness of structural parameters, such as elastic modulus and Poisson's ratio, is enhanced. Hence, in order to explore the whole picture of aeroelastic problems, it is of great significance t...

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Autores principales:	Bangsheng Fu, Ya Yang, Hui Qi, Jiangtao Xu, Shaobo Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/77c6bdfe43c74670a08ace1901108a62
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spelling	oai:doaj.org-article:77c6bdfe43c74670a08ace1901108a622021-12-02T14:53:42ZModeling and analysis of high aspect ratio wing considering random structural parameters10.1038/s41598-021-95187-02045-2322https://doaj.org/article/77c6bdfe43c74670a08ace1901108a622021-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-95187-0https://doaj.org/toc/2045-2322Abstract With the application of advanced composite materials in High-Aspect-Ratio wings (HARW), the randomness of structural parameters, such as elastic modulus and Poisson's ratio, is enhanced. Hence, in order to explore the whole picture of aeroelastic problems, it is of great significance to study the role of random structural parameters in aeroelastic problems. In this paper, the dynamic response of flexible HARW considering random structural parameters is analyzed. An aeroelastic model of a one-dimensional cantilevered Euler–Bernoulli beam considering aerodynamic forces acting on the wing is established based on Hamilton's principle. Adopted the idea of simplifying calculation, the effect of random structural parameters is analyzed. Then, considering the elastic modulus and torsional stiffness as continuously one-dimensional random field functions, and discretized by local method. The first and second order recursive stochastic nonlinear finite element equations of wing are derived by using perturbation method. Based on it, statistical expression of aeroelastic effects of the wing is derived. Monte Carlo method is adopted to verify the effectiveness of the method. Numerical simulations indicate that the method proposed can well mirror the statistical characteristics of aeroelastic response.Bangsheng FuYa YangHui QiJiangtao XuShaobo WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bangsheng Fu Ya Yang Hui Qi Jiangtao Xu Shaobo Wang Modeling and analysis of high aspect ratio wing considering random structural parameters
description	Abstract With the application of advanced composite materials in High-Aspect-Ratio wings (HARW), the randomness of structural parameters, such as elastic modulus and Poisson's ratio, is enhanced. Hence, in order to explore the whole picture of aeroelastic problems, it is of great significance to study the role of random structural parameters in aeroelastic problems. In this paper, the dynamic response of flexible HARW considering random structural parameters is analyzed. An aeroelastic model of a one-dimensional cantilevered Euler–Bernoulli beam considering aerodynamic forces acting on the wing is established based on Hamilton's principle. Adopted the idea of simplifying calculation, the effect of random structural parameters is analyzed. Then, considering the elastic modulus and torsional stiffness as continuously one-dimensional random field functions, and discretized by local method. The first and second order recursive stochastic nonlinear finite element equations of wing are derived by using perturbation method. Based on it, statistical expression of aeroelastic effects of the wing is derived. Monte Carlo method is adopted to verify the effectiveness of the method. Numerical simulations indicate that the method proposed can well mirror the statistical characteristics of aeroelastic response.
format	article
author	Bangsheng Fu Ya Yang Hui Qi Jiangtao Xu Shaobo Wang
author_facet	Bangsheng Fu Ya Yang Hui Qi Jiangtao Xu Shaobo Wang
author_sort	Bangsheng Fu
title	Modeling and analysis of high aspect ratio wing considering random structural parameters
title_short	Modeling and analysis of high aspect ratio wing considering random structural parameters
title_full	Modeling and analysis of high aspect ratio wing considering random structural parameters
title_fullStr	Modeling and analysis of high aspect ratio wing considering random structural parameters
title_full_unstemmed	Modeling and analysis of high aspect ratio wing considering random structural parameters
title_sort	modeling and analysis of high aspect ratio wing considering random structural parameters
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/77c6bdfe43c74670a08ace1901108a62
work_keys_str_mv	AT bangshengfu modelingandanalysisofhighaspectratiowingconsideringrandomstructuralparameters AT yayang modelingandanalysisofhighaspectratiowingconsideringrandomstructuralparameters AT huiqi modelingandanalysisofhighaspectratiowingconsideringrandomstructuralparameters AT jiangtaoxu modelingandanalysisofhighaspectratiowingconsideringrandomstructuralparameters AT shaobowang modelingandanalysisofhighaspectratiowingconsideringrandomstructuralparameters
_version_	1718389391817179136

Modeling and analysis of high aspect ratio wing considering random structural parameters

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