Article ID Journal Published Year Pages File Type
287970 Journal of Sound and Vibration 2014 17 Pages PDF
Abstract

•Hysteretic absorbers made of steel wire ropes and clamped moving masses are proposed.•Absorbers with softening or softening-hardening hysteretic forces are analyzed.•Superior performance is shown for absorbers with softening-hardening hysteresis.•High vibration reduction is proved experimentally for a simply supported beam.

The hysteresis exhibited by short steel wire ropes is shown to lend itself as an effective restoring force for nonlinear monodirectional tuned mass dampers. Experiment-driven modeling based on the identified hysteretic restoring forces together with continuation tools enables an optimal design of these dampers through construction of families of frequency–response curves over a wide range of excitation amplitudes. Semi-analytical/numerical and experimental studies are carried out considering a base-excited test structure represented by a simply supported beam together with a prototype of the hysteretic damper subject to either harmonic or filtered Gaussian white noise excitations.

Related Topics
Physical Sciences and Engineering Engineering Civil and Structural Engineering
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