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Frontiers of Structural and Civil Engineering

Front. Struct. Civ. Eng.    2009, Vol. 3 Issue (3) : 272-278     https://doi.org/10.1007/s11709-009-0042-1
Research articles
Comparisons of bridges flutter derivatives and generalized ones
Fuyou XU 1, Zhe ZHANG 1, Cailiang HUANG 1, Airong CHEN 2,
1.School of Civil & Hydraulic Engineering, Dalian University of Technology, Dalian 116024, China; 2.Department of Bridge Engineering, Tongji University, Shanghai 200092, China;
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Abstract The causes of the nonlinearity of self-excited aerodynamic force of bridge are interpreted from such two aspects as amplitude and wind velocity. The concept of “generalized flutter derivative” is proposed, and its physical meaning is illustrated. The graphs of the generalized flutter derivatives of plate and Sutong Bridge section model are plotted. The characteristics of all generalized flutter derivatives are compared and analyzed, and their superiorities are verified. The results indicate that the physical meaning of generalized flutter derivatives are more explicit compared to the traditional ones. It is more convenient to understand the nonlinearity properties of self-excited aerodynamic force of bridge according to the generalized flutter derivatives graphs with the wind velocity as the horizontal coordinate.
Keywords bridge      flutter derivative      generalized flutter derivative      self-excited aerodynamic force      Sutong Bridge      
Issue Date: 05 September 2009
 Cite this article:   
Fuyou XU,Zhe ZHANG,Cailiang HUANG, et al. Comparisons of bridges flutter derivatives and generalized ones[J]. Front. Struct. Civ. Eng., 2009, 3(3): 272-278.
 URL:  
http://journal.hep.com.cn/fsce/EN/10.1007/s11709-009-0042-1
http://journal.hep.com.cn/fsce/EN/Y2009/V3/I3/272
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Articles by authors
Fuyou XU
Zhe ZHANG
Cailiang HUANG
Airong CHEN
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doi: 10.1016/0167-6105(92)90131-S
Zasso A, Negri C S. Flutter derivatives identificationthrough full bridge aeroelastic model transfer function analysis. Journal of Wind Engineering and Industrial Aerodynamics, 1996, 60: 17–33

doi: 10.1016/0167-6105(96)00021-9
Chowdhury A G, Sarkar P P. Identification of eighteenflutter derivatives of an airfoil and a bridge deck. Wind and Structures, 2004, 7(3): 187–202
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Ma Rujin. Identification of Flutter Derivatives of Bridge Fecks Through AeroelasticModels. Shanghai: Tongji University, 2004 (in Chinese)
Xu Fuyou. Identification of Flutter Derivatives and Flutter Analysis of Bridges. Shanghai: Tongji University, 2006 (in Chinese)
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Chen Airong. Research on Wind Tunnel Testing of the Sectional Model of SutongBridge. Shanghai: Tongji University, 2002 (in Chinese)
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