Optimal Layout of Trusses: Simple Solutions
作者： G. I. N. Rozvany , W. Gollub
DOI: 10.1007/978-3-7091-2788-9_9
关键词:
摘要: As was mentioned in Chapter 2, this class of optimal layouts pioneered around the turn century by an Australian scientist, A.G.M. Michell (1904). The specific cost function ψ for considered structures is = k|N|, where k 1/σ p a given constant, σ permissible stress and N member force. corresponding optimality criteria were (1) (2) 2. They imply that least-weight trusses plane must consist following types regions points with non-vanishing members: (220) where 1 2 are principal forces whilst strains.
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