Modal damping and stepping-switch control of stay cables with magnetorheological fluid dampers

Wen Juan Lou; Yi-Qing Ni; Jan Ming Ko

doi:10.1117/12.434136

30 July 2001 Modal damping and stepping-switch control of stay cables with magnetorheological fluid dampers

Wen Juan Lou, Yi-Qing Ni, Jan Ming Ko

Author Affiliations +

Proceedings Volume 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways; (2001) https://doi.org/10.1117/12.434136
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

Abstract

Recent theoretical studies indicated that semi-active control using magnetorheological (MR) fluid dampers could provide better damping capability than viscous dampers for cable vibration mitigation. However, some challenging problems still remain in implementation of this smart damping technique to real engineering structures, e.g. how does the nonlinearity of MR dampers affect the system response? what are criteria of selecting MR damper size for an actual cable in design stage? which control strategies are cost effective and efficient for semi-active implementation? This paper tries to address these issues.

Citation Download Citation

Wen Juan Lou, Yi-Qing Ni, and Jan Ming Ko "Modal damping and stepping-switch control of stay cables with magnetorheological fluid dampers", Proc. SPIE 4330, Smart Structures and Materials 2001: Smart Systems for Bridges, Structures, and Highways, (30 July 2001); https://doi.org/10.1117/12.434136

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