Stand-alone controller for a semi-active bridge damper

Fabio Casciati; Lucia Faravelli

doi:10.1117/12.434140

30 July 2001 Stand-alone controller for a semi-active bridge damper

Fabio Casciati, Lucia Faravelli

Proceedings Volume 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways; (2001) https://doi.org/10.1117/12.434140
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

Abstract

Bridge dampers conceived as passive devices present a significant inconvenience in their need of requiring the definition of a reference ground motion for their design. They are conceived to serve as high stiffness components below a force threshold and to undergo large hysteretic cycles when the threshold is crossed. However, lower the threshold is to contrast the extreme excitation, higher the probability that the bridge devices undergo permanent deformation, under the serviceability excitation, becomes. Shifting from serviceability to ultimate conditions is only possible by adopting semi-active devices. The problem is then to select a reliable, standalone controller to be coupled with the semi-active device. This paper discusses the characteristics of a fuzzy-chip controller. It should be implemented in an electro-magnetic damper of industrial production.

Citation Download Citation

Fabio Casciati and Lucia Faravelli "Stand-alone controller for a semi-active bridge damper", Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); https://doi.org/10.1117/12.434140

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