Stochastic sensitivity analysis of a panel speaker structure with a locally resonant material

J. Kim*, J. Jung*, I. Lee*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A design optimization based on topology optimization was recently applied to a panel speaker structure to create band gaps using locally resonant metamaterials (LRMs). However, under practical environment, deterministically optimized designs cannot always perform as expected. This undesirable phenomenon occurs due to uncertainties such as variations of material properties or misplacement of resonators. The uncertainties should be considered during the optimization process to obtain reliable designs. To tackle the probabilistic problem in the design optimization under uncertainties, a stochastic sensitivity analysis must be preceded. This study aims to investigate the effects of uncertainties and analyze sensitivities of uncertainties concerning the performance of an LRM for further optimization.

Original languageEnglish
Title of host publicationProceedings of 2020 International Congress on Noise Control Engineering (INTER-NOISE 2020)
EditorsJin Yong Jeon
PublisherKorean Society of Noise and Vibration Engineering
Publication date2020
ISBN (Electronic)978-899402136-2
Publication statusPublished - 2020
Event49th International Congress and Exposition on Noise Control Engineering - Virtual event, Seoul, Korea, Republic of
Duration: 23 Aug 202026 Aug 2020
https://internoise2020.org/

Conference

Conference49th International Congress and Exposition on Noise Control Engineering
LocationVirtual event
Country/TerritoryKorea, Republic of
CitySeoul
Period23/08/202026/08/2020
Internet address

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