PRECISION RADIOTELESCOPE TUBULAR STRUCTURES, DIMENSIONALLY STABLE PARABOLIC RADIOTELESCOPE SHELLS

PRECISION RADIOTELESCOPE TUBULAR STRUCTURES
parabolic CFRP REFLECTOR SHELLS and SHELL SEGMENTS for spacecraft radiotelescopes

International programme SPEKTR-RADIOSTRON on the development of large space radiotelescope.
18 participating countries including Russia

PRECISION RADIOTELESCOPE TUBULAR STRUCTURES

retaining their shape and dimensions over a range of operating temperatures for the frameworks of the aerials of spacecraft radio telescopes, for the attachment of instrument platforms to the satellite bodies

Length up to 1300 mm
Elastic modulus (E) no less than 108 GPa
Linear thermal expansion coefficient no more than 0,3x10^-6К^-1
Thermal twist no more than 7 sec
Thermal bending no more than 10 mkm

POTENTIAL FIELDS OF APPLICATION: specialized ground-based test stands for the accurate measurement of thermal deformation and for the investigations in nuclear physics, frame gantries of automated stands, bodies of optical telescopes and photographic equipment of spacecraft

DIMENSIONALLY STABLE PARABOLIC CFRP SHELLS and SHELL SEGMENTS -

sandwich structures with honeycomb core, carbon-epoxy skins and radioreflective metal layer based on synthetic fabric on the working surfaces

Maximum deviation of the parabolic surface from the theoretical one no more than 0,4 mm

Linear thermal expansion coefficient of skin no more than 0,7x10^-6К^-1

Shell diameter up to 2800 mm

Segments dimensions up to 2800x7800 mm²

Structure thickness from 5 tо 50 mm

1m² shell mass from 2,5 kg

CFRP shell in the process of manufacture

The development has been carried out in cooperation with S.A. Lavochkin Research and Production Association and P.N. Lebedev Astrospace Centre of the Physical Institute of the Russian Academy of Science.

NO METALLIC ANALOGUES

Two sections under thermovacuum
testing in Research Centre ESTEC
(European Space Technology Centre, Holland)

FSUE "ORPE "Technologiya"

For further information please contact:

Address:	FSUE "ORPE "Technologiya" 15, Kiev St., Obninsk 249035, Kaluga region, Russia
Phones:	+7 (48439) 6 2841, +7 (495) 232 1045 Vikulin Vladimir Vasil'evich General Director Doctor of Technical Sciences, Professor, Academician of the International Academy of Ceramics and International Engineering Academy
Phones:	+7 (48439) 6 4775, +7 (495) 996 3593 Romashin Boris Alexandrovich Head of Department for Foreign Economic Relations
Fax:	+7 (48439) 6 4575
Internet:	http://www.technologiya.ru, http://www1.technologiya.ru
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