Finite Element Analysis of Seismic Response in Structural Models with and without Fluid Viscous Dampers, Using a New Viscoelastic Model, Phase I
Disciplines
Civil and Environmental Engineering | Mechanical Engineering
Abstract (300 words maximum)
This research employs finite element analysis (FEA) to explore the dynamic response of a composite building structure under seismic loading, with a focus on the effectiveness of fluid viscous dampers (FVDs). The study models various structural configurations, analyzing how FVDs mitigate stress and displacement during dynamic events. Through frequency and response spectrum analyses, the simulations compare the performance of buildings with rigid and deformable floor assumptions under base excitation. The addition of FVDs shows a significant reduction in vibrations, enhancing the building’s resilience and reducing structural fatigue. The study includes an extensive review of existing viscoelastic models for viscous dampers, such as the Generalized Maxwell, Kelvin-Voigt, and Rayleigh models, assessing their effectiveness in simulating structural behavior. Using SolidWorks©, FEA is conducted to test these viscoelastic models, aiming to identify one that closely approximates the non-linear response of real buildings. The results from this analysis will contribute to the development of a new viscoelastic model tailored for enhanced accuracy in predicting structural performance under seismic loads. This novel model will facilitate a deeper understanding of the dynamic interactions within the building framework and the role of dampers in mitigating vibrations. The outcomes of this investigation aim to bridge the gap between theoretical modeling and practical applications in structural engineering. The insights from the FEA simulations will guide the design and construction of an experimental building model for real-world testing of vibration control strategies, with input values identified for a valid experimental study. Ultimately, this research seeks to offer innovative solutions for improving the safety and stability of structures in seismically active regions, contributing to advancements in structural and mechanical engineering.
Academic department under which the project should be listed
SPCEET - Mechanical Engineering
Primary Investigator (PI) Name
Simin Nasseri
Additional Faculty
Aaron Adams, Engineering Technology, aadam224@kennesaw.edu
Finite Element Analysis of Seismic Response in Structural Models with and without Fluid Viscous Dampers, Using a New Viscoelastic Model, Phase I
This research employs finite element analysis (FEA) to explore the dynamic response of a composite building structure under seismic loading, with a focus on the effectiveness of fluid viscous dampers (FVDs). The study models various structural configurations, analyzing how FVDs mitigate stress and displacement during dynamic events. Through frequency and response spectrum analyses, the simulations compare the performance of buildings with rigid and deformable floor assumptions under base excitation. The addition of FVDs shows a significant reduction in vibrations, enhancing the building’s resilience and reducing structural fatigue. The study includes an extensive review of existing viscoelastic models for viscous dampers, such as the Generalized Maxwell, Kelvin-Voigt, and Rayleigh models, assessing their effectiveness in simulating structural behavior. Using SolidWorks©, FEA is conducted to test these viscoelastic models, aiming to identify one that closely approximates the non-linear response of real buildings. The results from this analysis will contribute to the development of a new viscoelastic model tailored for enhanced accuracy in predicting structural performance under seismic loads. This novel model will facilitate a deeper understanding of the dynamic interactions within the building framework and the role of dampers in mitigating vibrations. The outcomes of this investigation aim to bridge the gap between theoretical modeling and practical applications in structural engineering. The insights from the FEA simulations will guide the design and construction of an experimental building model for real-world testing of vibration control strategies, with input values identified for a valid experimental study. Ultimately, this research seeks to offer innovative solutions for improving the safety and stability of structures in seismically active regions, contributing to advancements in structural and mechanical engineering.