A Unified Approach for the Aeroelastic Analysis by Elimination of Frequency Dependence of Aerodynamic Force
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Bibliographic Details
| Author(s): |
Kilje Jung
Hae Sung Lee Ho-Kyung Kim Hong Yun Hwa |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | 18th IABSE Congress: Innovative Infrastructures – Towards Human Urbanism, Seoul, Korea, 19-21 September 2012 | ||||
| Published in: | IABSE Congress Seoul 2012 | ||||
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| Page(s): | 579-584 | ||||
| Total no. of pages: | 6 | ||||
| DOI: | 10.2749/222137912805110871 | ||||
| Abstract: |
A unified approach for the aeroelastic analysis of bridge decks is presented. The aerodynamic transfer functions are approximated as a linear function with the coefficients determined through minimization of the weighted error between the exact and approximated transfer function. Using the proposed approximation, the dependence of the aerodynamic transfer function on frequency is eliminated, and a popular time marching algorithm is adopted for the aeroelastic analysis in the time domain. For the frequency domain analysis, a complete set of modal frequencies and modal shapes can be evaluated in a single eigenvalue analysis. |
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| Keywords: |
time domain aeroelastic analysis aerodynamic forces frequency dependency Unified approach Weighting function Frequency domain
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