On optimality of column geometry

Roman Bogacz , K. Frischmuth

Abstract

Critical loads of columns under compressive follower forces have been widely discussed in the literature. By means of shape optimization, improvements by factors of more than eight could be achieved. However, the obtained solutions turn out to be not robust against perturbations of shape or material parameters. The aim of this paper is to explain this sensitivity effect, basing on a study of eigenforms. Further, a robust alternative to the classical optimization approach is proposed.
Author Roman Bogacz (FACME / IAE)
Roman Bogacz,,
- Institute of Automotive Engineering
, K. Frischmuth
K. Frischmuth,,
-
Journal seriesArchive of Applied Mechanics, ISSN 0939-1533, e-ISSN 1432-0681, (A 20 pkt)
Issue year2018
Vol88
No1-2
Pages317-327
Publication size in sheets0.5
Keywords in EnglishColumns, Shape optimization, Stability
DOIDOI:10.1007/s00419-017-1315-x
Languageen angielski
File
s00419-017-1315-0-1.pdf 1.16 MB
Score (nominal)25
ScoreMinisterial score = 20.0, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.49 (2) - 2016=1.46 (5)
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