Author(s)

K. Toumi & L. Jezequel

Abstract

A boundary element method approach to the vibration problem of stiffened plates K. Toumi, L. Jezequel Ecole Centrale de Lyon, Laboratoire Mecanique dea SoMea, C/7M CVWZ.S' 255, Bf ^g&g^^ Ecully, France 1: INTRODUCTION In many cases, the Boundary Element Method (BEM) appears as the best alternative to solve physical problems. The number of studies on the BEM have increased sharply during the past few years, in order to adapt it to industrial problems. Many real structures , such as ships, big transformers, etc.. are made of assembled plates and/or stiffened panels. Various methods can be used to predict the dynamic behaviour of the global structures. With methods like the Finite Element Method, a lot of time is generally spent on the preprocessing phase to find a correct model for the structure. This time is generally ten to twenty times longer than the computation time. As the BEM only needs the description of the structure's boundary, the preprocessi

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