Damping vibrations of a hyperbolic cooling tower using a reactive damper

Abstract

Experience in the construction of buildings and structures in areas where there is a threat of earthquakes shows that it is necessary to take seismic protection measures to prevent damage. Vibration dampers are widely used as means of protection. When choosing a vibration damping method, it is necessary to take into account the design features of the building. In this study, the possibility of using a reactive damper to dampen the vibrations of a hyperbolic cooling tower was studied. A numerical experiment was carried out to evaluate the absorber efficiency and select its parameters. An analysis of the results showed that the faster the response time of each charge, the more effective the damping of oscillations. An increase in the reactive force of each charge increases the efficiency up to a certain limit, after which the structure begins to swing in the opposite direction. It was found that the two-sided actuation of charges increases the efficiency of vibration damping.