A New Modeling Approach for Viscous Dampers Using an Extended Kelvin–Voigt Rheological Model Based on the Identification of the Constitutive Law’s Parameters

In addition to elastomeric devices, viscous fluid dampers can reduce the vibration transmitted dynamic systems. Usually, these are rate-independent and used in conjunction with isolators insulate base of buildings (buildings, bridges, etc.) shocks caused by earthquakes increasing damping capability. According EN 15129 standard, velocity-dependent anti-seismic devices Fluid Viscous Dampers (FVDs) Spring (FSDs). Based on experimental data from a regime damper small dimensions, for which not all design details known, determine law behavior damper, characteristics identified, including nonlinear parameter α (exponent velocity V) constitutive law. Note that magnitude force depends both (where maximum value is 0.52 m/s) amplitude displacement (±25 mm). Using Kelvin–Voigt rheological models, response structure fixed device analyzed, presenting reaction during parameterized application an external shock. This new approach FVDs/FSDs was validated using standard deviation between numerical results extended model offering researchers field seismic reliable method obtain such devices.