Nonlinear aerodynamic reduced-order model for limit-cycle oscillation and flutter

Weiwei Zhang; Jiaqing Kou; Ziyi Wang

doi:10.2514/1.J054951

Nonlinear aerodynamic reduced-order model for limit-cycle oscillation and flutter

航空学院

Northwestern Polytechnical University Xian

科研成果: 期刊稿件 › 文章 › 同行评审

60 引用（Scopus）

摘要

A study proposes some improvements based on the recursive radial basis function (RRBF) network model, while permitting relatively accurate limit-cycle oscillation (LCO) predictions after structural parameters change. The new reduced-order model (ROM) is named the POD-RBF network. The constructed POD-RBFnetwork is applied to predict the unsteady aerodynamic forces of a NACA 64A010 airfoil. After coupling with the structural equations of motion, the LCO trends and bifurcation point under different structural parameters can be predicted within a fraction of the time.

源语言	英语
页（从-至）	3302-3310
页数	9
期刊	AIAA Journal
卷	54
期	10
DOI	https://doi.org/10.2514/1.J054951
出版状态	已出版 - 2016

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AB - A study proposes some improvements based on the recursive radial basis function (RRBF) network model, while permitting relatively accurate limit-cycle oscillation (LCO) predictions after structural parameters change. The new reduced-order model (ROM) is named the POD-RBF network. The constructed POD-RBFnetwork is applied to predict the unsteady aerodynamic forces of a NACA 64A010 airfoil. After coupling with the structural equations of motion, the LCO trends and bifurcation point under different structural parameters can be predicted within a fraction of the time.

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Nonlinear aerodynamic reduced-order model for limit-cycle oscillation and flutter

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