OPTIMUM PARAMETERS AND LOCATION OF MULTIPLE TUNED MASS DAMPERS UNDER SEISMIC EXCITATION

Cetin H., Aydin E., ÖZTÜRK B.

World Conference on Earthquake Engineering proceedings, International Association for Earthquake Engineering, 2021 identifier

  • Yayın Türü: Kitapta Bölüm / Araştırma Kitabı
  • Basım Tarihi: 2021
  • Yayınevi: International Association for Earthquake Engineering
  • Anahtar Kelimeler: differential evolution, frequency domain, Multiple tuned mass dampers, tuned mass damper location
  • Hacettepe Üniversitesi Adresli: Evet

Özet

In this study, a proposed method considering the parameters of multiple tuned mass dampers (MTMDs) and location of MTMDs on a one-story single degree of freedom (SDOF) structure is presented. The equation of motion evaluated in the frequency domain and the seismic input for design is considered as white noise excitation in a particular critical frequency range interval. In the first step, tuned mass dampers (TMDs) are located on the structure. By using random vibration theory, the mean square displacement is minimized via differential evolution (DE) algorithm in this range under the specified constraints. If the mass or stiffness of the specified TMD is almost zero, it means that this TMD is eliminated so that the optimum location of MTMDs is executed. Thanks to the mass quantity optimization, the quantity of TMD on the floor is attained. After all, designed and located MTMDs performance is tested in time domain under seismic excitation. The results have shown that the proposed method is successful in reducing the response of structure under seismic excitation.