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Sliding Core Deployment Mechanism for Solar Sails based on Tubular Shell Masts

Hillebrandt, Martin and Zander, Martin E. and Huehne, Christian (2019) Sliding Core Deployment Mechanism for Solar Sails based on Tubular Shell Masts. 5th International Symposium on Solar Sailing, 30. Juli – 2. August 2019, Aachen, Deutschland.

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The paper describes the design of a solar sail deployment mechanism for flexible, tubular shell masts of closed cross-section. The mechanism is based on a novel interface design between the mast and its deployment mechanism that enables an interconnection of high stiffness and high load carrying capability. The interface is designed similar to an extrusion nozzle consisting of a core that is sliding inside the boom and a support shell that is enclosing the boom. As the boom has a closed cross-section, the core is held contactless in position from the outside by an enforced form closure using the flexibility of the boom shell. Between core and enclosing support shell remains only a small gap whereby any lateral motion of the boom shell is prevented. This enables a stiff connection and good load transmission between boom and deployment mechanism which results in a high overall performance. Lateral bending tests show that the bending strength of the mast around its weak axis is increased by 90% through use of this interface while bending stiffness increases by 23%. The paper describes the mechanical principle of this sliding core interface and presents an overview of a mechanism prototype for solar sails and similar applications.

Item URL in elib:https://elib.dlr.de/129630/
Document Type:Conference or Workshop Item (Speech)
Title:Sliding Core Deployment Mechanism for Solar Sails based on Tubular Shell Masts
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hillebrandt, MartinMartin.Hillebrandt (at) dlr.deUNSPECIFIED
Zander, Martin E.Martin.Zander (at) dlr.dehttps://orcid.org/0000-0001-5972-2938
Huehne, Christianchristian.huehne (at) dlr.dehttps://orcid.org/0000-0002-2218-1223
Date:October 2019
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Keywords:Deployable Space Structures, Deployable Booms, Deployment Mechanism, High Strain Composites
Event Title:5th International Symposium on Solar Sailing
Event Location:Aachen, Deutschland
Event Type:international Conference
Event Dates:30. Juli – 2. August 2019
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Transportation
DLR - Research area:Raumfahrt
DLR - Program:R RP - Space Transportation
DLR - Research theme (Project):R - Raumfahrzeugsysteme - Konzepte und Entwurf (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Hillebrandt, Martin
Deposited On:19 Nov 2019 05:19
Last Modified:19 Nov 2019 05:19

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