Distributed computing for the evaluation of the aeroelastic response and sensitivity analysis of flutter speed of the Messina Bridge

摘要

This paper explains the formulation that allows the calculation of a bridge flutter speed and the evaluation of the sensitivity of the aeroelastic response with regards to the mechanical parameters of the deck. This methodology requires the previous evaluation of the natural frequencies and mode shapes of the bridge in second order theory, and the sensitivity analysis of those frequencies and mode shapes. Then, the advantages of introducing distributed computing in order to save time and share the computational effort between a set of connected computers are presented. Finally, the results obtained using the previously introduced methodology and distributed computing are shown for the Messina strait bridge.