Structural efficiency evaluation of innovative reusable launch vehicles

Abstract This work is focused on evaluating the structural design of innovative reusable micro launcher MESO, originated from RRTB, a funded project by EU. The efficiency MESO evaluated in association with its mass budget, which based project’s early adopted requirements. In this particular loop, reusability concept intergraded implementing fail-safe approach, considering exclusive use high TRL aluminum alloys. main objective achieved developing global Finite Element Model (FEM), comprising set sub-models, represent primary structure, secondary structures, equipment and their interfaces as well. paper proceeds description modelling approach regarding mesh development connections created between sub-models for assembling integrated Global FEM launcher. first iteration load analysis loop resulted extraction Design Limit Loads (DLL). DLL investigated both ground flight cases, comprise most severe combination quasi-static loads. verified subjected to various types preliminary analysis, taking into consideration required ECSS safety factors static strength stability assessment. analyses results indicated order magnitude location all weak areas Subsequently sizing procedure performed prevent failure modes according conclusions derived influence modifications be considered next where same steps are going followed until requirements satisfied once again.