Yazar "Inanir, Muhammed Necmeddin Sami" seçeneğine göre listele

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    Effect of Viscous Damping Coefficient on Suppression of Structural Earthquake-Induced Vibrations with Tuned Liquid Column Dampers
    (Institute of Electrical and Electronics Engineers Inc., 2023) Serbes, Sefer Arda; Kemerli, Muaz; Aydin, Ahmet; Inanir, Muhammed Necmeddin Sami; Engin, Tahsin
    In this study, the effect of viscous damping coefficient of the liquid in Tuned Liquid Column Damper (TLCD) & structural systems under harmonic excitation was numerically investigated. The system under consideration is a TLCD-equipped structural system being manufactured for research purposes at Sakarya University's SARGEM research center for shaking tests. The parameters of this system were used as a reference in the numerical solution of the mathematical model using the 4th-order Runge-Kutta method, and the accuracy of the solution was verified with the MATLAB - SIMULINK toolbox. Subsequently, structural damping was addressed through dimensionless parameters commonly used in the study of TLCD-equipped structural systems: mass ratio, length ratio, and dimensionless excitation frequency. Two other dimensionless parameters related to displacement were derived as an evaluation criteria. The variation on these two parameters depending on the TLCD design was examined using the numerical solution code. The optimum design conditions of the TLCD are evaluated for an effective damping. © 2023 IEEE.
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    Öğe
    Experimental and Numerical Investigation of the Mitigation of Structural Vibrations Caused by Ground Acceleration with TLCD Application
    (Institute of Electrical and Electronics Engineers Inc., 2023) Serbes, Sefer Arda; Dal, Huseyin; Inanir, Muhammed Necmeddin Sami; Kemerli, Muaz; Aydin, Ahmet; Celebi, Erkan; Engin, Tahsin
    In this study, the application of a Tuned Liquid Column Damper (TLCD) for the mitigation of vibrations in buildings were numerically and experimentally investigated. For this purpose, a frequency-matched signle story model of a structure of an 8-story building and a corresponding TLCD model were designed and manufactured. The stiffness coefficient was determined through the free vibration tests. The structure with and without TLCD were subjected to free and harmonic vibrations in the 0-1 Hz frequency range using a six-degree-of-freedom shaking table. For numerical analysis, the nonlinear mathematical model of the system was established and solved using the 4th-order Runge-Kutta method. The accuracy of the mathematical model was demonstrated by comparing the experimental and numerical results. The analyses revealed that the application of TLCD is effective in reducing structural vibrations. © 2023 IEEE.