Author(s)

R. Kenda, C. Conti & Y. Wu

Abstract

Updating method applied to electronic structures R. Kenda, C. Conti, Y. Wu Faculte Polytechnique de Mons, Mecanique Rationnelle, Boulevard Dolez, 31, B. 7000 Mons, Belgium INTRODUCTION When used for spatial applications, electronic equipments undergo intensive dynamic excitations, due to the take off or the separation step of the launch vehicle. In order to guarantee the reliability, it is important to predetermine their dynamic behaviour as the equipments must generally fulfil some criteria regarding their modal characteristics (specified lower limits for the first resonance frequency), or their behaviour when submitted to static, random, sine or shock vibrations. This predetermination is usually carried out with a model of the structure, the performances of which are evaluated by applying the finite element method. Owing to the inevitable hypotheses of this model, it is important to quantify the differences between the model and the real structure

Keywords