Multiphysics topology optimization for piezoelectric acoustic focuser
- Authors
- Yoon, Gil Ho; Choi, Hyunggyu; Hur, Shin
- Issue Date
- Apr-2018
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Topology optimization; Piezoelectric material; SIMP approach; Acoustic focuser; Manufacturing constraint
- Citation
- COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING, v.332, pp.600 - 623
- Indexed
- SCIE
SCOPUS
- Journal Title
- COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
- Volume
- 332
- Start Page
- 600
- End Page
- 623
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/17695
- DOI
- 10.1016/j.cma.2017.12.002
- ISSN
- 0045-7825
- Abstract
- The application of piezoelectric materials allows many advantages such as reducing the number of parts and manufacturing cost of a mechanical system. Despite these merits, the performance predictions and optimization of piezoelectric-material-based devices are challenging because of the mutual coupling between electricity and mechanics. The analysis and the optimization become more challenging when acoustics are to be coupled with piezoelectric-material-based devices. In the present study, the mutual couplings among electric, mechanics, and acoustics are simulated and its applications for the topology optimization of an acoustic energy focuser are presented. Owing to the local optima issue, some blurred and unsuccessful layouts are obtained. To overcome this issue and impose the manufacturing constraint, a modified morphology density filter is also developed. With the presented approach, it is possible to determine some optimized piezoelectric rings to focus acoustic energy. Compared with the existing design methods, some better designs in terms of objective value can be obtained by the present approach.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.