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Acoustic topology optimisation using CMA-ES

Ramamoorthy, V. T.; Ozcan, E.; Parkes, A.J.; Sreekumar, A.; Jaouen, L.; Becot, F.X.

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Authors

V. T. Ramamoorthy

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ENDER OZCAN ender.ozcan@nottingham.ac.uk
Professor of Computer Science and Operational Research

A. Sreekumar

L. Jaouen

F.X. Becot



Abstract

Structural topology optimisation techniques are increasingly being applied to acoustic materials. Most acoustic topology optimisation applications use the solid-isotropic-material-with-penalization (SIMP) approach [1]–[4] which is a derivative-based method. In this work, we study the use of covariance-matrix-adaptation-evolution-strategy (CMA-ES) [5], [6], considered the state of the art approach for derivative-free continuous optimisation, as a candidate for acoustic topology optimisation. The performance of both CMA-ES and SIMP are compared on a small test problem. In this initial study, manufacturability restrictions and volumeconstraints were not considered for either of the algorithms. Comparisons show that SIMP quickly results in a good quality solution, while CMA-ES converges slowly but to a better quality solution.

Citation

Ramamoorthy, V. T., Ozcan, E., Parkes, A., Sreekumar, A., Jaouen, L., & Becot, F. (2020). Acoustic topology optimisation using CMA-ES. In Proceedings of ISMA2020 International Conference on Noise and Vibration Engineering: USD2020 International Conference on Uncertainty in Structural Dynamics

Conference Name ISMA-USD 2020 - International Conference on Noise and Vibration Engineering
Conference Location Leuven, Belgium
Start Date Sep 7, 2020
End Date Sep 9, 2020
Acceptance Date Aug 19, 2020
Publication Date Sep 7, 2020
Deposit Date Sep 27, 2022
Publicly Available Date Mar 28, 2024
Book Title Proceedings of ISMA2020 International Conference on Noise and Vibration Engineering: USD2020 International Conference on Uncertainty in Structural Dynamics
ISBN 9789082893113
Public URL https://nottingham-repository.worktribe.com/output/11746826
Publisher URL http://past.isma-isaac.be/downloads/isma2020/proceedings/Contribution_509_proceeding_3.pdf

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