Vibration control of a structure with ATMD against earthquake using fuzzy logic controllers

• Published in: Journal of sound and vibration 2008-11, Vol.318 (1), p.36-49
• Main Authors: Guclu, Rahmi, Yazici, Hakan
• Format: Article
• Language: English
• Subjects: Active control; Applied sciences; Buildings. Public works; Controllers; Disturbances; Earthquake design; Exact sciences and technology; Fundamental areas of phenomenology (including applications); Fuzzy control; Fuzzy logic; Geotechnics; Physics; Seismic phenomena; Solid mechanics; Structural and continuum mechanics; Structure-soil interaction; Vibration; Vibration, mechanical wave, dynamic stability (aeroelasticity, vibration control...)
• ISSN: 0022-460X; 1095-8568
• DOI: 10.1016/j.jsv.2008.03.058

In this paper, fuzzy logic and PD controllers are designed for a multi-degree-of freedom structure with active tuned mass damper (ATMD) to suppress earthquake-induced vibrations. Fuzzy logic controller (FLC) is preferred because of its robust character, superior performance and heuristic knowledge use effectively and easily in active control. A fifteen-degree-of-freedom structural system is modeled with two types of actuators. These actuators are installed on the first storey and fifteenth storey which has ATMD. The system is then subjected to Kocaeli Earthquake vibrations, which are treated as disturbances. In control, linear motors are used as the active isolators. At the end of the study, the time history of the storey displacements and accelerations, ATMD displacements, control voltages, frequency responses of the both uncontrolled and the controlled structures are presented. Performance of the designed FLC has been shown for the different loads and disturbances using ground motion of the Kobe Earthquake. The results of the simulations show a good performance by the fuzzy logic controllers for different loads and the earthquakes.