Long span roofs are very likely to oscillate when subjected wind load that can lead structure fatigue and endanger structures safety. Dampers have been used for long time dissipate earthquake induced energy in structures. This research work aims present experimental study of small size viscoelastic damper be installed truss roof. Small dampers large roof need tested know their performance behav...

Viscoelastic dampers are conventional passive vibration control devices with excellent energy dissipation performance. The fractional derivative has a simple form and high accuracy in the modelling of viscoelastic materials/dampers. internal variables reflect state evolution materials, often used to analyze deformation thermal process materials. In present work, mechanical properties plate-shea...

In response estimation of seismic control structures, it is necessary to consider the performance degradation dampers due long-period motion. this paper focus given structures with shear strain dependent nonlinear viscoelastic dampers. A method proposed predict damper dissipated energy considering in earthquakes. The used maximum deformation structure using existing methods. New expression are ...

Abstract In the paper, nonlinear vibrations of a system with three degrees freedom having spherical pendulum are considered. The comprises mass element suspended from linear spring and viscous damper, swung element. It is assumed that fractional damping occurs in damper at pivot point. viscoelastic properties to be described using Riemann–Liouville derivative. derivative an order $$ 0 < \alp...