Abstract
Structural control prevents structural damage and provides the desirable performance level through the ductility of components and using passive energy dissipation systems. In this paper, the performance of a recently introduced passive control device called Visco-Hyperelastic Damper (VHD) is investigated by ABAQUS FEM software. This device has the properties of both velocity-dependent and displacement-dependent dampers and provides additional energy dissipation for structures. This device consists of a viscoelastic material sandwiched between two metal rings dissipating energy through a combination of the elastic behavior of the viscoelastic material and the plastic deformation of the steel parts. In order to validate the numerical model, after separately testing the steel and rubber parts, their results are used in damper modeling. VHD performs desirably under different levels of excitation such that 82% to 99% of energy dissipation, depending on the type of loading, is observed by this device. The dynamic behavior of VHD can be further improved by modifying variable parameters such as dimensions and type of materials of the device.
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