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IRAS: Low-cost Constellation Satellite Design, Electric Propulsion and Concurrent Engineering

Ehresmann, Manfred and Skalden, Jonathan and Fugmann, Martin and Fasoulas, Stefanos and Klinkner, Sabine and Sakraker, Isil and Stäbler, Tina and Refle, Oliver (2018) IRAS: Low-cost Constellation Satellite Design, Electric Propulsion and Concurrent Engineering. 69th International Astronautical Congress (IAC), Bremen, Germany, 1.-5- Oktober 2018, Bremen, Deutschland.

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Abstract

The Integrated Research Platform for affordable Satellites (IRAS) is a joint research project by DLR, Fraunhofer, IRS and industry partners aimed at developing cost-reducing technologies for satellites. This paper describes the various contributions of the IRS to IRAS, such as development of a reference satellite constellation for implementation and demonstration of new technologies. The digital concurrent engineering platform as an IRAS subproject is being described with regards to the envisioned aim and future application for unifying engineering tools from multiply stakeholders. It allows to create an efficient design toolchain to reduce development time and costs. The evolutionary system design converger is a contribution on the level of electric propulsion systems to the platform. It is given as a subsystem example of the capabilities of the digital concurrent engineering platform. Additional examples of analysis and outputs are given for the IRAS use case. Grid ion thrusters with xenon are likely to be able to provide an electric propulsion system with the lowest total system mass, while an ammonia based arcjet system will allow for the fastest regeneration of the constellation at a reasonable mass fraction. Additive manufacturing with its significant potential for space hardware cost reduction, while maintaining or increasing system performances due to function integration, is explained. An arcjet nozzle with integrated regenerative cooling channels has been identified as promising component. It is being manufactured from tungsten powder through selective laser melting.

Item URL in elib:https://elib.dlr.de/124038/
Document Type:Conference or Workshop Item (Speech)
Title:IRAS: Low-cost Constellation Satellite Design, Electric Propulsion and Concurrent Engineering
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Ehresmann, ManfredIRS Universität StuttgartUNSPECIFIED
Skalden, JonathanIRS Universität StuttgartUNSPECIFIED
Fugmann, MartinIRS Universität StuttgartUNSPECIFIED
Fasoulas, StefanosIRS Universität StuttgartUNSPECIFIED
Klinkner, SabineIRS Universität StuttgartUNSPECIFIED
Sakraker, IsilIsil.Sakraker (at) dlr.dehttps://orcid.org/0000-0003-2666-3446
Stäbler, TinaTina.Staebler (at) dlr.dehttps://orcid.org/0000-0002-3645-1423
Refle, OliverFraunhofer IPAUNSPECIFIED
Date:1 October 2018
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Satellites
Event Title:69th International Astronautical Congress (IAC), Bremen, Germany
Event Location:Bremen, Deutschland
Event Type:international Conference
Event Dates:1.-5- Oktober 2018
Organizer:International Astronautical Federation (IAF)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transport
DLR - Research area:Raumfahrt
DLR - Program:R RP - Raumtransport
DLR - Research theme (Project):Re-usability Flight Experiment (ReFEx)
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design
Institute of Structures and Design > Space System Integration
Deposited By: Stäbler, Tina
Deposited On:05 Dec 2018 09:30
Last Modified:05 Dec 2018 09:30

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