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@PHDTHESIS{Kortmann:981188,
author = {Kortmann, Martin},
othercontributors = {Schröder, Kai-Uwe and Stoll, Enrico},
title = {{M}ethodical guideline for the definition of suitable
interfaces for modular space systems},
volume = {2024,1},
school = {RWTH Aachen University},
type = {Dissertation},
address = {Düren},
publisher = {Shaker Verlag},
reportid = {RWTH-2024-02844},
isbn = {978-3-8440-9397-1},
series = {Aachener Berichte aus dem Leichtbau},
pages = {1 Online-Ressource : Illustrationen},
year = {2024},
note = {Druckausgabe: 2024. - Auch veröffentlicht auf dem
Publikationsserver der RWTH Aachen University; Dissertation,
RWTH Aachen University, 2023},
abstract = {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.},
cin = {415610},
ddc = {620},
cid = {$I:(DE-82)415610_20160301$},
typ = {PUB:(DE-HGF)11 / PUB:(DE-HGF)3},
doi = {10.2370/9783844093971},
url = {https://publications.rwth-aachen.de/record/981188},
}
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