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Proceedings Paper

Stability of suspension bridges: II. Aerodynamic vs. structural damping
Author(s): Nasiruddin U. Ahmed; H. Harbi
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Paper Abstract

In this paper we consider a few dynamic models of suspension bridges described by partial differential equations with linear and nonlinear couplings. We study analytically the stability properties of these models and the relative effectiveness of aerodynamic and structural damping. Increasing either of these damping coefficients indefinitely does not necessarily increase the decay rate indefinitely. In view of possible disastrous effects of high wind, structural damping is preferable to viscous damping. These results are illustrated by numerical simulation.

Paper Details

Date Published: 17 June 1998
PDF: 14 pages
Proc. SPIE 3325, Smart Structures and Materials 1998: Smart Systems for Bridges, Structures, and Highways, (17 June 1998); doi: 10.1117/12.310617
Show Author Affiliations
Nasiruddin U. Ahmed, Univ. of Ottawa (Canada)
H. Harbi, Univ. of Ottawa (Canada)


Published in SPIE Proceedings Vol. 3325:
Smart Structures and Materials 1998: Smart Systems for Bridges, Structures, and Highways
S.-C. Liu, Editor(s)

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