ANISOGRID DESIGN FOR FUSELAGE PRIMARY STRUCTURES – RESULTS OF EU/RU PROJECTS ALASCA AND POLARBEAR

Kurzfassung

In the level 1 projects ALaSCA (Advanced Lattice Structures for Composite Airframes) and PoLaRBEAR (Production and Analysis Evolution for Lattice Related Barrel Elements under Operations with Advanced Reliability) the potential of novel airframe architecture is demonstrated. Deriving from a well proven spacecraft structure design, all classical design levels are investigated from coupon to full-size structural test level. During the projects different barrel design concepts are developed including design solutions on component level like window cut-outs, barrel-barrel interface or floor-barrel attachment. Accordingly the partners developed new analysis methods and sizing algorithms as well as manufacturing processes and test methods for these unconventional stiffened fuselage structures.