A method is presented for the minimum mass design of three-dimensional space frames constructed of thin-walled rectangular cross-sectional members. Constraints on nodal displacements and rotations, material stress, local buckling, and cross-sectional dimensions are included. A high-quality separable approximate problem is formed in terms of the reciprocals of the four section properties of the frame element cross section, replacing all implicit functions with simplified explicit relations. The cross-sectional dimensions are efficiently calculated without using multilevel techniques. Several test problems are solved, demonstrating that a series of approximate problem solutions converge rapidly to an optimal design.
Approximations method for space frame synthesis
Naeherungsverfahren fuer die rechnerische Synthese von Weltraum-Rahmenstrukturen
AIAA Journal ; 21 , 11 ; 1571-1580
1983
10 Seiten, 11 Bilder, 4 Tabellen, 13 Quellen
Aufsatz (Zeitschrift)
Englisch
Approximations Method for Space Frame Synthesis
AIAA | 1983
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