Comparison of predictive techniques for spacecraft shock environment

Abstract. Shock loads are very high amplitude and short duration transient loads. They produced in space structures by pyrotechnic devices placed the launchers initiating stage or fairing separations. While spacecraft structure is not susceptible to this range of frequencies, electrical units could be seriously damaged during launch phase. tests performed on verify if they withstand loads, thus their compliance requirements. To understand how input force evolves from launcher-spacecraft interface equipment interest, a model dynamical behaviour at frequencies has developed. An initial approach constitutes implementation mathematical through use Statistical Energy Analysis (SEA). The results 4 degrees freedom using SEA will shown. can further developed integration data-driven techniques. In work description two different approaches presented, that include model-based methods. Finally, cross-cutting potential solution briefly introduced; it combine experimental data with as convey them training database an Artificial Neural Network algorithm. hybrid possibly turn out reliable efficient way break down time costs shock test campaign.