Browsing by Author "Yazdi, Kian"

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    Conceptual design and flight simulation of space station missions beyond low earth orbit
    (2006) Yazdi, Kian; Messerschmid, Ernst (Prof. Dr. rer.nat.)
    Humans will live and work in space for the exploration and development of the solar system. A wide range of space infrastructure elements will be required in low Earth orbit and beyond. Besides new transfer and re-entry vehicles as well as planetary surface installations, space stations in the Earth-Moon system can be a crucial element of forthcoming exploration missions. This dissertation documents an investigation on conceptual design and flight simulation of such space station missions beyond low Earth orbit, namely in the Earth-Moon system. The goal is to develop and extend the methodology and software tools of the conceptual design process (Space Station Design Workshop, SSDW) in order to enable spaceflight systems engineering of space stations in the context of future mission scenarios and architectures. The methodological approach for human spaceflight mission design is discussed with taking into account the special characteristics and requirements of interdisciplinary teamwork and software tool support. The results reveal that mission aspects such as the transfer problem are much more relevant than before. The emphasis lies then on the software engineering approach and major characteristics of the computer programmes developed for space systems modelling and dynamic simulation. A design example demonstrates the application of the methodology and tools on a conceptual design problem targeting at a space station mission at the lunar Lagrange point one (LL1), upon which near-term lunar surface exploration missions can build on. Challenged by the constraint of using existing and tailored European/Russian technology and infrastructure elements, the results manifest the feasibility of such a space station that offers various utilization possibilities. The results documented include the station configuration and modules, the transfer vehicles for crew and cargo transport, the station’s life support system and a logistics concept. The concept outlines enhancements of the current transportation and station infrastructure and shows that the International Space Station (ISS) as a transportation node can beneficially support lunar scenarios.