Analysis of a Nonlinear Aeroelastic System with Parametric Uncertainties Using Polynomial Chaos Expansion
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-21, 21 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-07-18
Country of Publication
Egypt
No. of Pages
21
Main Subjects
Abstract EN
Aeroelastic stability remains an important concern for the design of modern structures such as wind turbine rotors, more so with the use of increasingly flexible blades.
A nonlinear aeroelastic system has been considered in the present study with parametric uncertainties.
Uncertainties can occur due to any inherent randomness in the system or modeling limitations, and so forth.
Uncertainties can play a significant role in the aeroelastic stability predictions in a nonlinear system.
The analysis has been put in a stochastic framework, and the propagation of system uncertainties has been quantified in the aeroelastic response.
A spectral uncertainty quantification tool called Polynomial Chaos Expansion has been used.
A projection-based nonintrusive Polynomial Chaos approach is shown to be much faster than its classical Galerkin method based counterpart.
Traditional Monte Carlo Simulation is used as a reference solution.
Effect of system randomness on the bifurcation behavior and the flutter boundary has been presented.
Stochastic bifurcation results and bifurcation of probability density functions are also discussed.
American Psychological Association (APA)
Desai, Ajit& Sarkar, Sunetra. 2010. Analysis of a Nonlinear Aeroelastic System with Parametric Uncertainties Using Polynomial Chaos Expansion. Mathematical Problems in Engineering،Vol. 2010, no. 2010, pp.1-21.
https://search.emarefa.net/detail/BIM-467409
Modern Language Association (MLA)
Desai, Ajit& Sarkar, Sunetra. Analysis of a Nonlinear Aeroelastic System with Parametric Uncertainties Using Polynomial Chaos Expansion. Mathematical Problems in Engineering No. 2010 (2010), pp.1-21.
https://search.emarefa.net/detail/BIM-467409
American Medical Association (AMA)
Desai, Ajit& Sarkar, Sunetra. Analysis of a Nonlinear Aeroelastic System with Parametric Uncertainties Using Polynomial Chaos Expansion. Mathematical Problems in Engineering. 2010. Vol. 2010, no. 2010, pp.1-21.
https://search.emarefa.net/detail/BIM-467409
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-467409