Open AccessThe Effect of Structural Rigidity Uncertainties on ATMD Controlled Structures
Author(s) -
Ayli̇n Ece Kayabekir,
Gebrai̇l Bekdaş,
Si̇nan Meli̇h Ni̇gdeli̇
Publication year - 2022
Publication title -
wseas transactions on systems
Language(s) - English
Resource type - Journals
eISSN - 2224-2678
pISSN - 1109-2777
DOI - 10.37394/23202.2022.21.3
Subject(s) - stiffness , tuned mass damper , rigidity (electromagnetism) , structural engineering , robustness (evolution) , control theory (sociology) , structural system , materials science , engineering , computer science , control (management) , damper , chemistry , biochemistry , artificial intelligence , gene
For efficiency of active control systems for seismically excited structures, and optimization process in need. This optimum design is defined according to the certain properties of structures, whereas the structural properties are found via several assumptions done in material strengths calculations and variable loading. These factors affect the mass and stiffness of the structure, but it is known that the main factor in the optimum design of control systems is the frequency that is related to mass and stiffness, generally. In this study, the stiffness of multiple degrees of freedom structure was reduced and increased to investigate the effect of the robustness of optimum active control systems for uncertainties. The numerical examination is done for a structure with an active tuned mass damper (ATMD) that is positioned on the top of the structure. For ±20 stiffness change of structure, the efficiency of ATMD is between 0.99% and 12.63% for the reduction of maximum displacement.