Stacbeam - An efficient, low-mass, sequentially deployable structureDesign features of the stacking triangular articulated compact beam (Stacbeam) as a candidate truss structure for GEOS spacecraft solar power arrays are explored. Solar arrays of increasing size require folding, noninterfering structures, minimal thermal effects, slow and controlled deployment, and a high aspect ratio. The Stacbeam consists of a triangular batten frame perpendicular to the beam axis, three longerons attached at the corners of the batten frame and mounted parallel to the beam axis, and three diagonals to provide shear and torsional stiffness. Locking hinges are installed at the midpoint and ends of each longeron and at the midpoint and ends of each diagonal. The material is graphite/epoxy composite with a 120 GPa modulus and a 1500 kg/sq m density. Successful vertical deployment on the ground has been effected with a prototype deployer, together with horizontal cantilever in a fully deployed configuration.
Document ID
19830046030
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Adams, L. R. (Astro Research Corp. Carpinteria, CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Subject Category
Spacecraft Design, Testing And Performance
Meeting Information
Meeting: IECEC ''82; Seventeenth Intersociety Energy Conversion Engineering Conference