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TY - THES AU - Kortmann, Martin TI - Methodical guideline for the definition of suitable interfaces for modular space systems VL - 2024,1 PB - RWTH Aachen University VL - Dissertation CY - Düren M1 - RWTH-2024-02844 SN - 978-3-8440-9397-1 T2 - Aachener Berichte aus dem Leichtbau SP - 1 Online-Ressource : Illustrationen PY - 2024 N1 - Druckausgabe: 2024. - Auch veröffentlicht auf dem Publikationsserver der RWTH Aachen University N1 - Dissertation, RWTH Aachen University, 2023 AB - Space is a resource that is more and more commercially used. To ensure this resource’s safe andsustainable use, new rules and regulations and new technologies need to be implemented. One of these technologies is on-orbit servicing and on-orbit assembly, which enable the upgrade or lifetime extension of existing satellites or the assembly of new systems in orbit. One keyconcept to support these technologies is the idea of modular robotic systems. However, the keychallenge of these kinds of systems is the complex modularization process, which requires carefultrade-offs for a system already inherently featuring a high level of complexity. This thesis proposes a methodical guideline that supports the user during the conceptualization phase of such a modular robotic system to ease the modularization process. Space systems are uniquely suited for modular robotic systems due to functional and performance requirements and the applicable environmental conditions. In contrast to most modularapplications, not the module’s functional requirements are the design driver, but the definitionof a suitable interface drives the design by its required complexity. This level of complexitybecomes apparent when looking at examples from manned space systems.It is possible to quantify the resulting interface complexity and mechanism performance byevaluating generally applicable functional and performance requirements. In the first step,the applicable requirements are identified. Universal interface functionalities are derived and quantified based on evaluating existing space interface mechanisms and general interface transfer parameters. Besides the connection performance requirements categories for modularity requirements, general mechanism requirements and environmental protection are introduced. Five distinct score categories are defined for the selected requirements to quantify their performance.The three influence factors, complexity, size, and mass, are utilized to judge their impact on the overall system design. Based on this, an algorithm is compiled which calculatesa value that represents an estimation of the effort required to design and build the mechanism.The given indication is used to adapt the module design and conception to optimize the overall system design in the early project stages. This process is presented in the example of two generic cases of a spacecraft modularization concept. The calculated values can also be used to analyze existing interface solutions on the concept level, which is also performed on the example mechanisms. To conclusively verify the correct implementation of the algorithm, theratios of investigated cases are compared and shown to be on a logical scale. This shows that the algorithm can be a valuable tool to engineers during the conceptional design phase of modularspace systems and for judging the suitability of existing or future interface mechanism designs. LB - PUB:(DE-HGF)11 ; PUB:(DE-HGF)3 DO - DOI:10.2370/9783844093971 UR - https://publications.rwth-aachen.de/record/981188 ER -