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NON-LINEAR VIBRATION OF CABLE–DAMPER SYSTEMS PART II: APPLICATION AND VERIFICATION

✍ Scribed by Y.L. XU; Z. YU

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
236 KB
Volume
225
Category
Article
ISSN
0022-460X

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✦ Synopsis

The formulation derived in Part I of this paper is applied to investigate nonlinear vibration behavior of inclined sag cables with and without oil dampers in long-span cable-stayed bridges. The inclined sag cables used in computation are also tested in the laboratory with scaled cables and oil dampers. The experimental results are then compared with the theoretical results to verify the suggested approach. Both theoretical analyses and experiments display some typical nonlinear behavior of cable vibration, including response hardening, response bifurcation, multiple solutions, jump, and internal resonance. They also demonstrate that an oil damper with an appropriate damping coe$cient being selected can e!ectively suppress large vibration amplitudes of the cable so that in some cases, non-linear cable vibration problem may become a linear vibration problem. The agreement between the experimental and theoretical results is found to be satisfactory.

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