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Comparative morphology of configurations with reduced part count derived from the octahedral-tetrahedral trussMorphology (the study of structure and form) of the octahedral-tetrahedral (octet) truss is described. Both the geometry and symmetry of the octet truss are considered. Morphological techniques based on symmetry operations are presented which enable the derivation of reduced-part-count truss configurations from the octet truss by removing struts and nodes. These techniques are unique because their Morphological origination and they allow for the systematic generation and analysis of a large variety of structures. Methods for easily determining the part count and redundancy of infinite truss configurations are presented. Nine examples of truss configurations obtained by applying the derivation techniques are considered. These configurations are structurally stable while at the same time exhibiting significant reductions in part count. Some practical and analytical considerations, such as structural performance, regarding the example reduced-part-count truss geometries are briefly discussed.
Document ID
19910009855
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Lalvani, Haresh (George Washington Univ. Hampton, VA., United States)
Collins, Timothy J. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 6, 2013
Publication Date
February 1, 1991
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
NAS 1.15:102768
NASA-TM-102768
Accession Number
91N19168
Funding Number(s)
PROJECT: RTOP 506-43-41-02
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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