Open AccessTASKS AND PRINCIPLES OF ACTIVE DAMPING OF VIBRATION FLIGHTS
Author(s) -
R.Zh. Tuleushova
Publication year - 2019
Publication title -
vestnik kyrgyzskogo gosudarstvennogo universiteta stroitelʹstva, transporta i arhitektury im.n.isanova/n.isanov atyndagy kyrgyz mamlekettik kuruluš,transport žana arhitektura universitetinin žarčysy
Language(s) - English
Resource type - Journals
eISSN - 1694-8181
pISSN - 1694-5298
DOI - 10.35803/1694-5298.2019.4.639-645
Subject(s) - damper , bridge (graph theory) , vibration , hysteresis , harmonic , computer science , damping torque , measure (data warehouse) , vibration control , control theory (sociology) , structural engineering , engineering , physics , acoustics , control (management) , medicine , direct torque control , electrical engineering , quantum mechanics , voltage , database , artificial intelligence , induction motor
The paper considers a model for counteracting seismic effects on a bridge structure created by an active damping device. The essence of the proposed approach is that the active damper plays an auxiliary role as an intermediate device that allows you to determine the necessary hysteresis characteristics of effective damping. Based on the identified optimal hysteresis characteristics, it is possible to determine the parameters of passive dampers intended for direct installation on the protected object.An active damper can be implemented as a device on a specialized test bench, or virtually in numerical experiments. For numerical modeling, a mathematical model of active damping was developed, taking into account the pulsed nature of seismic effects and thereby expanding the limitations inherent in traditional harmonic analysis. In this model, convolutional representations of dynamic quantities are proposed, equivalent to the introduction of a weak measure of dynamic functions in the space of bridge oscillations. This approach is more responsive to the challenges of engineering applications.