NUMERICAL STUDY OF THE FLUID DAMPER USED FOR EARTHQUAKE-RESISTANT REINFORCED STRUCTURES

Burak Turkan ()
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Burak Turkan: Gemlik Asim Kocabiyik Vocational School, Department of Mechanics, Bursa Uludag University, TR-16600 Gemlik, Bursa, Turkey

Surface Review and Letters (SRL), 2023, vol. 30, issue 08, 1-15

Abstract: In countries where the earthquake has devastating effects, new buildings should be earthquake-resistant. For this, soil surveys and structure natural vibration frequencies should be considered. In this study, regardless of the ground period, the fluid damper has been modeled numerically to decrease the natural vibration frequency of the structure. In fluid dampers, mechanical energy is converted into heat energy. The fluid damper was exposed to the same structure frequency value during an earthquake of 10, 20, 30, 40, 50, and 60s for four different building heights (6–12–18–24m) and the temperature and velocity distribution of the fluid damper was examined with the help of the COMSOL multiphysics. The temperature changes in the fluid damper for the 6m high building that has the lowest structure natural vibration period (highest frequency) were observed to be the highest. It has been determined that during the vibration, fluid passes through the micro channel between the piston and the outer surface of the fluid damper and reaches high temperatures and velocities because of the viscous heating effect.

Keywords: Viscous heating; fluid damper; numerical study; structures (search for similar items in EconPapers)
Date: 2023
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DOI: 10.1142/S0218625X23500506

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