Moving load identification in time domain using a coupled genetic algorithm

Abstract

This study deals with a method to identify moving loads on bridge decks using the finite element method (FEM) and a coupled genetic algorithm(c-GA). We developed the inverse technique using a coupled genetic algorithm which can make global solution searches possible as opposed to classical gradient-based optimization techniques. The technique described in this paper may allow us not only to detect the weight of moving vehicles but also to find their moving velocities. 1-D and 3-D finite element models are simulated to study the influence of measurement errors and model uncertainty between numerical and real structures. © 2012 Springer-Verlag.