Parametric Studies on the Relationships of Flutter Derivatives of Slender Bridge(Ⅱ)

XU Xu

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Article Navigation > Applied Mathematics and Mechanics > 2009 > 30(3): 318-324

XU Xu. Parametric Studies on the Relationships of Flutter Derivatives of Slender Bridge(Ⅱ)[J]. Applied Mathematics and Mechanics, 2009, 30(3): 318-324.

Citation:

XU Xu. Parametric Studies on the Relationships of Flutter Derivatives of Slender Bridge(Ⅱ)[J]. Applied Mathematics and Mechanics, 2009, 30(3): 318-324.

Citation:

XU Xu. Parametric Studies on the Relationships of Flutter Derivatives of Slender Bridge(Ⅱ)[J]. Applied Mathematics and Mechanics, 2009, 30(3): 318-324.

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Parametric Studies on the Relationships of Flutter Derivatives of Slender Bridge(Ⅱ)

XU Xu

Department of Civil Engineering, Shanghai University, Shanghai 200072, P. R. China

Received Date: 2008-11-28
Rev Recd Date: 2008-01-19
Publish Date: 2009-03-15

Abstract

Abstract

Based on the curves fitting of coefficients of three component forces of Messina Straits bridge, and the semianalytical expressions of flutter derivatives of flexible structure provided by the author(XU Xu, CAO Zhi-yuan. Linear and nonlinear aerodynamic theory of interaction between flexible long structrure and wind. Appli ed Mathem atical and Mechan ics, 2001, 22(12):1299-1308.), the changing of flutter derivatives of slender bridge cross-section with its aerodynamic center, rotational speed and angles variation was researched by parametric method. Not only comparison the calculated results of flutter derivatives with the tested ones were investigated, but also the expressions of flutter derivatives of Messina Straits bridge were formulated. The intrinsic relations existing in flutter derivatives were validated once again. It is showed that the influences of rotational speed on flutter derivatives can not be ignored; so it is really a supplementary and trial way to use the semianalytical method to analyze flutter derivatives of the bridge with streamlined cross-section for getting its aerodynamic information.
- flutter derivative,
- slender bridge,
- parametric analysis

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References(13)

References

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