Parametric Structural Analysis for the SpaceLiner

Abstract

The Space Launcher Systems Analysis Group (SART) of the German Aerospace Center DLR has been working for several years on developing a novel hypersonic passenger transportation concept. The SpaceLiner, originally proposed in 2005, is a two staged, rocket propelled and vertical take-off transportation system designed for a 90 minutes Europe- Australia reference mission carrying 50 passengers. In addition to the DLR internal activities, the SpaceLiner is also under investigation in the current European Commission’s (EC) research projects FAST20XX and CHATT. A major challenge for the SpaceLiner is the design of a lightweight structure for this unique vehicle concept and the integration of structure and thermal protection system (TPS). For this task, a finite element based structural analysis tool will be used, providing rapid parametric studies for complex vehicle configurations with a high level of flexibility. This paper summarizes the current and past activities on the preliminary structural analysis for the SpaceLiner. The parametric analysis tool will be described in detail. Different structural concepts will be investigated and the results presented. Also discussed is the integration of TPS and- structure, as well as structural-dynamic considerations. In addition to the SpaceLiner related activities also a brief summary of the parametric structural analysis within the EC co-funded ATLLAS-II research project will be given.