Multidisciplinary Simulation of HOPE-X (NASDA) with TRANSYS (DLR)

Abstract

TRANSYS (TRANsportation SYStem) a multidisciplinary system integrating engineering software for Space Transportation System (STS) conceptual study and preliminary design,is in operation at the German Aerospace Center (DLR). To validate the new tool, a recent reusable winged vehicle, H-II Orbiting PlanE eXperimental (HOPE-X), is simulated in the sizing process, which includes geometry generation, mass estimation, aerodynamic analysis, propulsion performance calculation, and trajectory simulation. The new analysis tool is able to simulate HOPE-X on a preliminary design level without detailed data. Only published specifications are used for the simulation. The calculated results are compared with the system design data of NAL (National Aerospace Laboratory) and NASDA (NAtional Space Development Agency of Japan). In this context the HOPE-X design is verified by the independent (DLR) analysis.