Stability of Torsional and Vertical Motion of Suspension Bridges Subject to Stochastic Wind Forces

In this paper we consider the question of stability of suspension bridges subject to random wind forces. We use the model proposed in Ahmed and Harbi [4] which constitutes an extension of the deterministic models of Roseau [9] and Jacover and McKenna [8] to stochastic models. We present interesting simulation results with physical interpretation.