Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Efficient buckling constrained topology optimization using reduced order modeling

Dahlberg, Vilmer LU ; Dalklint, Anna LU ; Spicer, Matthew ; Amir, Oded and Wallin, Mathias LU (2023) In Structural and Multidisciplinary Optimization 66(7).
Abstract

We present an efficient computational approach to continuum topology optimization with linearized buckling constraints, using Reduced Order Models (ROM). A reanalysis technique is employed to generate basis vectors that subsequently are used to significantly reduce the size of the generalized eigenvalue problems. We demonstrate the efficacy of this approach by optimizing for stiffness with buckling constraints and show results for several test cases. Based on our findings, we conclude that the ROM can potentially save significant computational effort without compromising the quality of the results.

Please use this url to cite or link to this publication:
author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Combined approximations, Linearized buckling analysis, Reanalysis, Reduced order modeling, Topology optimization
in
Structural and Multidisciplinary Optimization
volume
66
issue
7
article number
161
publisher
Springer
external identifiers
  • scopus:85163763688
ISSN
1615-147X
DOI
10.1007/s00158-023-03616-7
language
English
LU publication?
yes
id
d8a5c99c-702d-4395-865f-6f2f97493961
date added to LUP
2023-09-15 09:41:34
date last changed
2023-10-12 09:31:18
@article{d8a5c99c-702d-4395-865f-6f2f97493961,
  abstract     = {{<p>We present an efficient computational approach to continuum topology optimization with linearized buckling constraints, using Reduced Order Models (ROM). A reanalysis technique is employed to generate basis vectors that subsequently are used to significantly reduce the size of the generalized eigenvalue problems. We demonstrate the efficacy of this approach by optimizing for stiffness with buckling constraints and show results for several test cases. Based on our findings, we conclude that the ROM can potentially save significant computational effort without compromising the quality of the results.</p>}},
  author       = {{Dahlberg, Vilmer and Dalklint, Anna and Spicer, Matthew and Amir, Oded and Wallin, Mathias}},
  issn         = {{1615-147X}},
  keywords     = {{Combined approximations; Linearized buckling analysis; Reanalysis; Reduced order modeling; Topology optimization}},
  language     = {{eng}},
  number       = {{7}},
  publisher    = {{Springer}},
  series       = {{Structural and Multidisciplinary Optimization}},
  title        = {{Efficient buckling constrained topology optimization using reduced order modeling}},
  url          = {{http://dx.doi.org/10.1007/s00158-023-03616-7}},
  doi          = {{10.1007/s00158-023-03616-7}},
  volume       = {{66}},
  year         = {{2023}},
}