Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Junghwan Kook"'
Publikováno v:
Materials & Design, Vol 191, Iss , Pp - (2020)
The main aim of this paper is to present a topology optimization method for a local resonator, in order to tailor flexural bandgaps in plate structures. The local resonator is required to be designed systematically in order to tailor the bandgap at t
Externí odkaz:
https://doaj.org/article/a2fa3272c66b4b469e06db839579590e
Autor:
Junghwan Kook, Jakob S. Jensen
Publikováno v:
AIP Advances, Vol 4, Iss 12, Pp 124304-124304-17 (2014)
The aim of this paper is to investigate the enhancement of the damping ratio of a structure with embedded microbeam resonators in air-filled internal cavities. In this context, we discuss theoretical aspects in the framework of the effective modal da
Externí odkaz:
https://doaj.org/article/211202897f214747ae9f0b46d695df71
Autor:
Jakob S. Jensen, Junghwan Kook
Publikováno v:
Crystals, Vol 6, Iss 9, p 112 (2016)
In this work, we study the existence of coupled bandgaps for corrugated plate structures and acoustic channels. The study is motivated by the observation that the performance of traditional bandgap structures, such as periodic plates, may be compromi
Externí odkaz:
https://doaj.org/article/30953692da7c4830a7aa3239d0971d76
Publikováno v:
Journal of Mechanical Science and Technology. 36:3313-3327
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0a9f1e304c5f01084cb47eea5abe3f9
https://doi.org/10.1007/s12206-022-0611-y
https://doi.org/10.1007/s12206-022-0611-y
Publikováno v:
Structural and Multidisciplinary Optimization. 65
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e1f88f69bdb92ed727001acbe130f8d
https://doi.org/10.1007/s00158-022-03451-2
https://doi.org/10.1007/s00158-022-03451-2
Autor:
Jin Hyun Chang, Junghwan Kook
Publikováno v:
Structural and Multidisciplinary Optimization. 64:4387-4408
An effective and straightforward method to implement topology optimization using high-level programming is presented. The method uses the LiveLink for MATLAB, which couples the commercial COMSOL Multiphysics software with MATLAB programming environme
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd8dcd46aa54b1cd04078ce2942041a2
https://doi.org/10.1007/s00158-021-03052-5
https://doi.org/10.1007/s00158-021-03052-5
Publikováno v:
Structural and Multidisciplinary Optimization. 65
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37a2f871c56bb2afe90ab5c9e31c4d7c
https://doi.org/10.1007/s00158-022-03228-7
https://doi.org/10.1007/s00158-022-03228-7
Autor:
Junghwan Kook
Publikováno v:
Mechanics Based Design of Structures and Machines. 47:356-374
In this work, we present a topology optimization method for acoustic-structure interaction problems, which combines bi-directional evolutionary structural optimization (BESO) with a mixed displacem...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b61a1ae43dac4bc3601fa949c9973c50
https://doi.org/10.1080/15397734.2018.1557527
https://doi.org/10.1080/15397734.2018.1557527
Autor:
Junghwan Kook, Milad Saadatmand
Publikováno v:
Journal of the Brazilian Society of Mechanical Sciences and Engineering. 42
An analytical study of capacitive micromachined ultrasonic transducers (CMUTs) with circular microplates has been carried out. The study comprises one-sided (single electrode back-plate) and two-sided (double electrode back-plate) systems, and derive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4df55b8ed515012fde5a6084c7a389a
https://doi.org/10.1007/s40430-020-02551-8
https://doi.org/10.1007/s40430-020-02551-8
Autor:
Junghwan Kook, Milad Saadatmand
Publikováno v:
Microsystem Technologies. 25:2937-2947
In this study, the optimization of a circular dual back-plate condenser microphone has been done in order to increase the pull-in voltage, sensitivity and resonance frequency simultaneously. Microphone’s diaphragm is assumed as a circular micro-pla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68bd9b2aae6379b2d59ef08490f9b4c6
https://doi.org/10.1007/s00542-018-4240-4
https://doi.org/10.1007/s00542-018-4240-4