NASA NTRS · 19790000271
Foldable beam
Abstract
Articulated beam folds into helix around cylindrical hub without segments becoming twisted. Twisting motion that normally occurs when a structure is folded into helix is undesirable in segmented beam because it complicates joints between segments.
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Crawford, R. F.. 1979-12-01. Foldable beam. https://ntrs.nasa.gov/citations/19790000271
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