Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Eunghwy Noh"'
Autor:
Won-Suk Ohm, Young-Cheol Park, Dong Joo Lee, Sangbeom Woo, Hada Jang, Eunghwy Noh, Keunsang Lee, Young-Soo Seo, Hunki Lee, Min Ho Song, Jae Wan Lee
Publikováno v:
Journal of Mechanical Science and Technology. 33:3127-3135
This paper describes an active silencer system for low-frequency noise in water-filled pipes, with implementation in marine vessels and structures in mind. Active noise control in underwater environment has its unique challenges arising from bubbles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ae5da8269697c5e028c9e77c2310434
https://doi.org/10.1007/s12206-019-0608-3
https://doi.org/10.1007/s12206-019-0608-3
Publikováno v:
The Journal of the Acoustical Society of America. 145:EL514-EL520
This Letter reports measurements of nonlinearity parameter B/A of water-saturated glass beads under uniaxial compression representative of the gravitational loading in seabed. The finite-amplitude method in conjunction with the multi-Gaussian beam mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ed48783a77c28a53d6a7c6120dcae0ee
https://doi.org/10.1121/1.5111058
https://doi.org/10.1121/1.5111058
Autor:
Eunghwy Noh, Won-Suk Ohm, Wonjong Chun, Hongwoo Yoon, Wonkyu Moon, Hunki Lee, Woosuk Chang, Kyounghun Been
Publikováno v:
The Journal of the Acoustical Society of America. 144:2434-2446
A fast computational method for modeling and simulation of large projector arrays is presented. The method is based on the array equations that account for the acoustic interaction among the projector elements as well as the individual characteristic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::177744c035f8599535f891b330bc97c7
https://doi.org/10.1121/1.5065493
https://doi.org/10.1121/1.5065493
Autor:
Wonjong Chun, Wonkyu Moon, Woosuk Chang, Hongwoo Yoon, Won-Suk Ohm, Kyounghun Been, Eunghwy Noh
Publikováno v:
Transactions of the Korean Society for Noise and Vibration Engineering. 27:221-233
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8053e86b183d5faa8f4265a48721c32f
https://doi.org/10.5050/ksnve.2017.27.2.221
https://doi.org/10.5050/ksnve.2017.27.2.221
Publikováno v:
The Journal of the Acoustical Society of Korea. 35:436-444
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e76046515fd5ed6e5f76252e144af648
https://doi.org/10.7776/ask.2016.35.6.436
https://doi.org/10.7776/ask.2016.35.6.436
Publikováno v:
AIP Conference Proceedings.
Marine sediments are known to exhibit the nonlinearity parameter B/A that is much greater than that of homogeneous fluids and solids. The enormous value of B/A is particularly sensitive to the state of grain contacts. Although there exists a large bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51bf58f0ab5239f0fd0cc0ccbe9de785
https://doi.org/10.1063/1.4934384
https://doi.org/10.1063/1.4934384
Publikováno v:
The Journal of the Acoustical Society of America. 140:3124-3124
In this talk, we present a theory and the supporting experiment for the nonlinearity parameter B/A of saturated, unconsolidated marine sediments. The model is composed of the quadratic nonlinearity of the equivalent suspension of grains and the inter
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7a0a61b34ac350bc1d5a310d179901a5
https://doi.org/10.1121/1.4969784
https://doi.org/10.1121/1.4969784
Autor:
Eunghwy Noh, Youna Ji, Kim Jaepil, Young-Soo Seo, Won-Suk Ohm, Wonjong Chun, Young-Cheol Park
Publikováno v:
The Journal of the Acoustical Society of America. 140:3089-3089
With the introduction of low-frequency active sonar in anti-submarine warfare, there is a growing need for a novel underwater invisibility device that could replace the existing passive anechoic tiles. In this talk, we describe an experiment on activ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14b883feaca538afbc1eacb57680fafd
https://doi.org/10.1121/1.4969627
https://doi.org/10.1121/1.4969627
Publikováno v:
The Journal of the Acoustical Society of America. 140:3089-3089
Modeling and simulation for the design of a projector array involves computations in the transducer and acoustic domains. In the transducer domain, each transducer is often described by the two-port, equivalent-circuit model, in which the radiation i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9ffa2fce7ddf40fd8e56ea846bc9b71
https://doi.org/10.1121/1.4969626
https://doi.org/10.1121/1.4969626
Publikováno v:
The Journal of the Acoustical Society of America. 139:2033-2033
Uniformity of constituent projector elements is a prerequisite for building a high-performance underwater transmit array. Unless the element-to-element variations in transmitting voltage response (TVR) and directivity fall within specified limits, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4811e3f8a6e58f954b1094828d431ba2
https://doi.org/10.1121/1.4950004
https://doi.org/10.1121/1.4950004