Institute of Space Systems - Space Station Design Workshop
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Universität Stuttgart

SSDW Methodology

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This page gives a brief introduction into the conceptual design methodology used by the SSDW.

Let's first take a closer look at the basics of conceptual system design. This will help to understand the contextual problems associated with the conceptual design process:
  • Fuzzy mission and system requriements at the beginning of the design project make "clean-cut" solutions impossible
  • Mission and system elements are strongly interdependent (network-type problem)
  • Most important project decisions are made at the beginning, which then are driving the cost, schedule and risk associated with the mission throughout its lifetime
  • Conceptual design results are crucial for "stop/go" decisions
From these basic statements, the requirements for a conceptual design methodology can be deduced. It should:
  • Cover analysis, design, simulation and evaluation
  • Implement multidisciplinary elements
  • Enable a heuristic, non-sequential approach using baseline concepts and interactive iteration techniques
  • Provide adapted computer tools to support rapid conceptual design in a coherent environment
These requirements result in the main objectives of the SSDW:
  • Allow for conceptual design and optimization studies for space stations and platforms within a few days, performed by a small design team
  • Allow for realistic education in systems engineering by providing easy-to-use tools and offering design workshops for hands-on experience
  • Support space station utilization with respect to overall system questions and through assessment of experiment specific boundary conditions
One advantage of this approach is that synergisms on the system- and subsystem level can be modeled and thus put to use in the design.