Premium
Numerical Study on An Innovative Elastomeric‐Steel Cushion Damper
Author(s) -
Moeini Milad Ehteshami,
Razavi S. Ali,
Yekrangnia Mohammad,
Khaloo Alireza
Publication year - 2021
Publication title -
ce/papers
Language(s) - English
Resource type - Journals
ISSN - 2509-7075
DOI - 10.1002/cepa.1478
Subject(s) - structural engineering , hyperelastic material , cushion , stiffness , damper , bracing , natural rubber , centring , elastomer , materials science , finite element method , dissipation , hysteresis , displacement (psychology) , constraint (computer aided design) , viscoelasticity , composite material , engineering , brace , mechanical engineering , psychology , physics , quantum mechanics , thermodynamics , psychotherapist
In this research cyclic performance of a newly developed energy dissipating device is investigated through finite element studies. The device is constructed using yielding steel Cushions and bonded rubber cubes. The Cushions dissipate the induced energy of earthquakes while the rubber cubes provide lateral constraint and post‐elastic stiffness for the bracing system due to the Hyperelastic behavior of the rubber material. The main advantage of the proposed damper is its little maintenance expense and cost efficiency since the steel Cushions can easily be replaced. In this paper, the requisite details are presented for the application of the proposed device. It can be observed from the analytical results that the proposed damper exhibits full and wide hysteresis loops resulting in excellent equivalent viscous damping while maintaining adequate lateral stiffness at various displacement levels. The dissipated energy per cycle and the respective effective stiffness and equivalent damping of the model are presented in this study.