Large deployable reflector technologies for future European telecom and earth observation missions

A. Ihle, E. Breunig, L. Datashvili, M. Migliorelli, L. Scialino, K. van 't Klooster, J. Santiago-Prowald

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

This paper presents requirements, analysis and design results for European large deployable reflectors (LDR) for space applications. For telecommunications, the foreseeable use of large reflectors is associated to the continuous demand for improved performance of mobile services. On the other hand, several earth observation (EO) missions can be identified carrying either active or passive remote sensing instruments (or both), in which a large effective aperture is needed e.g. BIOMASS. From the European point of view there is a total dependence of USA industry as such LDRs are not available from European suppliers. The RESTEO study is part of a number of ESA led activities to facilitate European LDR development. This paper is focused on the structural-mechanical aspects of this study. We identify the general requirements for LDRs with special emphasis on launcher accommodation for EO mission. In the next step, optimal concepts for the LDR structure and the RF-Surface are reviewed. Regarding the RF surface, both, a knitted metal mesh and a shell membrane based on carbon fibre reinforced silicon (CFRS) are considered. In terms of the backing structure, the peripheral ring concept is identified as most promising and a large number of options for the deployment kinematics are discussed. Of those, pantographic kinematics and a conical peripheral ring are selected. A preliminary design for these two most promising LDR concepts is performed which includes static, modal and kinematic simulation and also techniques to generate the reflector nets.

Originele taal-2Engels
TitelProceedings of 12th European Conference on Spacecraft Structures, Materials and Environmental Testing
Plaats van productieNoordwijk
UitgeverijEuropean Space Agency
ISBN van geprinte versie9789290922551
StatusGepubliceerd - 19 dec 2012
Extern gepubliceerdJa
Evenement12th European Conference on Spacecraft Structures, Materials and Environmental Testing - Noordwijk, Nederland
Duur: 20 mrt 201223 mrt 2012

Publicatie series

NaamESA SP
Volume691

Congres

Congres12th European Conference on Spacecraft Structures, Materials and Environmental Testing
Land/RegioNederland
StadNoordwijk
Periode20/03/1223/03/12

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