Optimal selection of topologies for the minimum-weight design of continuum structures with stress constraints
Article
Article Title | Optimal selection of topologies for the minimum-weight design of continuum structures with stress constraints |
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ERA Journal ID | 3711 |
Article Category | Article |
Authors | Liang, Qing Quan (Author), Xie, Yi Min (Author) and Steven, Grant P. (Author) |
Journal Title | Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science |
Journal Citation | 213 (8), pp. 755-762 |
Number of Pages | 24 |
Year | 1999 |
Publisher | SAGE Publications Ltd |
Place of Publication | England, UK |
ISSN | 0954-4062 |
2041-2983 | |
Digital Object Identifier (DOI) | https://doi.org/10.1243/0954406991522374 |
Web Address (URL) | http://pep.metapress.com/content/119771/ |
Abstract | This paper presents a method for assisting the optimal selection of topologies for the minimum-weight design of continuum structures subject to stress constraints by using the performance index (PI). A performance index is developed for evaluating the efficiency of structural topologies based on the scaling design approach. This performance index is incorporated in the evolutionary structural optimization (ESO) method to monitor the optimization process when gradually removing inefficient material from the structure. The optimal topology can be identified from the performance index history. Various structures with stress and height constraints are investigated by using this performance index, which is also employed to compare the efficiency of structural topologies generated by different optimization methods. It is shown that the proposed performance index is capable of measuring the efficiency of structural topologies obtained by various structural optimization methods and is a valuable design tool for engineers in selecting optimal topologies in structural design. |
Keywords | Form factor, optimization, efficiency, ranking, performance index, topology, stress constraint, evolutionary structural optimization, finite element analysis |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Victoria University of Technology |
University of Sydney |
https://research.usq.edu.au/item/9y507/optimal-selection-of-topologies-for-the-minimum-weight-design-of-continuum-structures-with-stress-constraints
2027
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