Stability of suspension bridges: II. Aerodynamic vs. structural damping

Nasiruddin U. Ahmed; H. Harbi

doi:10.1117/12.310617

17 June 1998 Stability of suspension bridges: II. Aerodynamic vs. structural damping

Nasiruddin U. Ahmed, H. Harbi

Proceedings Volume 3325, Smart Structures and Materials 1998: Smart Systems for Bridges, Structures, and Highways; (1998) https://doi.org/10.1117/12.310617
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

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.

Citation Download Citation

Nasiruddin U. Ahmed and H. Harbi "Stability of suspension bridges: II. Aerodynamic vs. structural damping", Proc. SPIE 3325, Smart Structures and Materials 1998: Smart Systems for Bridges, Structures, and Highways, (17 June 1998); https://doi.org/10.1117/12.310617

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