Acoustic topology optimisation using CMA-ES

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

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: Sep 27, 2022
• 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