Assessment of Fluttering Derivatives of Bridge Deck Using CFD Simulation

Abstract

In this paper, the dynamic analysis of wind effects on the bridge deck section is determined with the help of CFD simulation. As the wind tunnel testing approach is high-priced and time-consuming, there is a need for an alternative approach. The investigation on the bridge deck is carried out using ANSYS software. In this bridge deck design, with the help of numerical models like Fluid-Structure Interaction (FSI) to find flutter derivatives of the piece of the bridge deck. The forces, moments, and coefficients are calculated using different wind speeds. For this steady and unsteady procedures have been taken. For calculations of mean force coefficients, the K-ω SST turbulence models are taken into consideration. The bridge deck section’s flutter derivatives require spatial histories, stable simulations, and static aerodynamic coefficients. With the help of ICEM CFD, the meshing of the deck is carried out. In this, the dynamic behavior of wind all over the section of the bridge deck is investigated with different wind speeds.