Time Delay’s effect on Higher Structure’s Modes

چکیده مقاله

In active controlling of structures, we can monitor just one or few modes of structure Applied control force to active control devices which regulated on main vibration mode of structure and it seems that large time delays have deteriorated effects only on the controlled mode In this paper we evaluate time delay’s effect on the other modes that are not controlled For this reason, used a 2D 8 shear story that subjected to EW Elcentro ground motion For processing and determining structure’s responses, discrete instantaneous optimal control method is used Structure and control system are analyzed in many different time delay and after that found out time delay in active structural control system loop has not only mortal effect on controlled mode but also has similar effects on the other uncontrolled modes In the other word, time delay has approximately same effects on all vibration modes of structure

کلیدواژه‌ها

نویسندگان

B Rajabi

Department of civil engineering, Saghez branch, Islamic Azad University IAU, Saghez, Iran

O Bahar

Assistant Professor, International Institute of Earthquake Engineering and Seismology IIEES

Rajabi, B and Bahar, O,1391,Time Delay’s effect on Higher Structure’s Modes,9th International Congress on Civil Engineering,Isfahan

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