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Compact Deployment Control Mechanism for the Deployable Backbone Structure of a 500-m²-Class Solar Sail

Richter, Martin and Straubel, Marco and Fernandez, Juan M. and Stohlman, Olive R. and Wilkie, William K. (2019) Compact Deployment Control Mechanism for the Deployable Backbone Structure of a 500-m²-Class Solar Sail. ISSS 2019, 29.07.2019 - 02.08.2019, Aachen, Deutschland.

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Spacecraft, intended for solar sailing mission rely on deployable systems to achieve large area to mass ratios once in space, while still being small enough for common launcher envelopes, in stowed configuration. Many deployable systems feature booms that are flattened and consequently, collectively coiled onto one hub. DLR and NASA have joined forces to realize a deployment system, using NASA booms in combination with a deployment mechanism, developed by DLR. This paper’s focus is lying on the mechanism part. The deployment mechanism is based on an existing, smaller scaled version, which has already undergone several functional tests at DLR. Besides the challenges of the up-scaling of a mechanism, featuring booms with a larger cross section to begin with, this paper also focusses on the development of a new, constant-torque brake. Braking systems have always been part of the deployment mechanisms, to prevent the booms from self-deployment through stowed elastic energy. To make these brakes as lightweight as possible, while maintaining torque and reliability, is a challenge on its own.

Item URL in elib:https://elib.dlr.de/128852/
Document Type:Conference or Workshop Item (Speech)
Title:Compact Deployment Control Mechanism for the Deployable Backbone Structure of a 500-m²-Class Solar Sail
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Richter, MartinMartin.Richter (at) dlr.deUNSPECIFIED
Straubel, MarcoMarco.Straubel (at) dlr.deUNSPECIFIED
Fernandez, Juan M.juan.m.fernandez (at) nasa.govUNSPECIFIED
Stohlman, Olive R.olive.r.stohlman (at) nasa.govUNSPECIFIED
Wilkie, William K.william.k.wilkie (at) nasa.govUNSPECIFIED
Date:1 August 2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Deployment mechanism, deployable systems, solar sail, carbon fibre boom, integration and refurbishment
Event Title:ISSS 2019
Event Location:Aachen, Deutschland
Event Type:international Conference
Event Dates:29.07.2019 - 02.08.2019
Organizer:FH Aachen
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):Proj. Entfaltungstechnologie . Solar Sail (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Richter, Martin
Deposited On:23 Sep 2019 04:39
Last Modified:23 Sep 2019 04:39

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