Flutter analysis of an airfoil with multiple nonlinearities and uncertainties

被引：0

作者：

Liao, Haitao ^{[1
]}

Gao, Ge ^{[1
]}

机构：

[1] Chinese Aeronaut Estab, Beijing 100012, Peoples R China

来源：

PROPULSION AND POWER RESEARCH | 2013年 / 2卷 / 03期

关键词：

Linut yele; IIarmonic balance method; Floquet theory; The MtltiStart algorithm;

D O I：

10.1016/j.jppr.2013.07.001

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

An original method for calculating the limit cycle oscillations of nonlinear aeroelastic system is presented. The problem of determining the maximum Vibration amplitude of limit cycle is transformed into a nonlinear optimization problem. The harmonic balance method and the Floquet theory are selected to construct the general nonlinear equality and inequality constraints. The resulting constrained maximization problem is then solved by using the MultiStart algorithm. Finally, the proposed approach is validated and used to analyse the limit cycle oscillations of an airfoil with multiple nonlinearities and uncertainties. Numerical examples show that the coexistence of multiple nonlinearities may lead to low amplitude limit cycle oscillation. (C) 2013 National Laboratory for Aeronautics and Astronautics. Production and hosting by Elsevier B.V. All rights reserved.

引用

页码：208 / 213

页数：6

共 5 条

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[3] Chen Y.M., Liu J.K., Meng G., Incremental harmonic balance method for nonlinear flutter of an airfoil with uncertain-but-bounded parameters, Applied Mathematical Modelling, 36, 2, pp. 657-667, (2012)
[4] Liu J.K., Chen F.X., Chen Y.M., Bifurcation analysis of aeroelastic systems with hysteresis by incremental harmonic balance method, Applied Mathematics and Computation, 219, 5, pp. 2398-2411, (2012)
[5] Ugray Z., Lasdon L., Plummer J., Glover F., Kelly J., Marti R., Scatter search and local NLP solvers: a multistart framework for global optimization, INFORMS Journal on Computing, 19, 3, pp. 328-340, (2007)

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