A new vibration absorber based on the restoring forces of NiTiNOL and mixed NiTiNOL-steel wire ropes subject to flexural and coupled tensile-flexural states is presented. The peculiar hysteresis of the device is due to the simultaneous presence of interwire friction and phase tranformations. An extension of the Bouc-Wen model is proposed to fit the experimental force-displacement cycles by employing the Differential Evolutionary optimization algorithm. The genetic-like optimization is carried out both for the constitutive identification and for the design of the vibration absorber. The effectiveness of the device is proved experimentally by a series of shaking table tests on a multi-story scale building.
A new vibration absorber based on the hysteresis of NiTiNOL and steel wire ropes assembly / Carboni, Biagio; Lacarbonara, Walter. - ELETTRONICO. - 16:(2014). (Intervento presentato al convegno CSNDD 2014 - International Conference on Structural Nonlinear Dynamics and Diagnosis tenutosi a Agadir, Marocco nel Maggio 19-21, 2014) [10.1051/matecconf/20141601004].
A new vibration absorber based on the hysteresis of NiTiNOL and steel wire ropes assembly
CARBONI, BIAGIO;LACARBONARA, Walter
2014
Abstract
A new vibration absorber based on the restoring forces of NiTiNOL and mixed NiTiNOL-steel wire ropes subject to flexural and coupled tensile-flexural states is presented. The peculiar hysteresis of the device is due to the simultaneous presence of interwire friction and phase tranformations. An extension of the Bouc-Wen model is proposed to fit the experimental force-displacement cycles by employing the Differential Evolutionary optimization algorithm. The genetic-like optimization is carried out both for the constitutive identification and for the design of the vibration absorber. The effectiveness of the device is proved experimentally by a series of shaking table tests on a multi-story scale building.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
