Uncertainty investigations in nonlinear aeroelastic systems |
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Authors: | Jian Deng Cristina AntonYau Shu Wong |
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Institution: | Department of Mathematical and Statistical Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2G1 |
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Abstract: | In this paper, the stochastic collocation method (SCM) is applied to investigate the nonlinear behavior of an aeroelastic system with uncertainties in the system parameter and the initial condition. Numerical case studies for problems with uncertainties are carried out. In particular, the performance of the SCM is compared with solutions based on other computational techniques such as Monte Carlo simulation, Wiener chaos expansion and wavelet chaos expansion. From the computational results, we conclude that the SCM is an effective tool to study a nonlinear aeroelastic system with random parameters. |
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Keywords: | Uncertainty Stochastic collocation method Monte Carlo simulation Wiener chaos expansion Nonlinear aeroelastic system |
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