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DEPOSE - Additive manufacturing of cabin monuments using Direct Energy Deposition
Aircraft cabin partitions are commonly made in sandwich design consisting of a lightweight core and two cover layers of fibre-reinforced plastic composites. The critical points of these structures are the load introduction points. For this purpose, so-called inserts with a potting compound are integrated into the structure. For larger loads, hard fabric blocks are used. A suitable design for the load path is only possible to a limited extenn, so that overdimensioning is occurring.
Research Method
The component geometry should be structurally optimised with regard to an optimal load-weight ratio through iterative, software-supported processes, e.g. by topology optimisation, and then validated through various static and dynami tests. Starting from the characterisation of the mechanical and geometric properties, the results are successively transferred to higher component complexities according to the Building Block Approach. In addition, the influences of process optimisations on the part will be investigated. Finally, a full-size test is carried out on the Hexapod test bench and the knowledge gained is used to derive rules and guidelines for the production-appropriate design for the manufacture of DED-based structures.
Project Organisation
Principal Investigator (PKT): Prof. Dr.-Ing. Dieter Krause
Co-Investigator: Finn H. Christiansen, M.Sc., Tobias S. Hartwich, M.Sc.
The project is part of the Field of Application Aviation.
TU Hamburg
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