Abstract
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. In this light the effect of bubbles on active noise control in water-filled pipes is explored, and a design guideline for a robust active silencer is proposed. The silencer consists of an underwater sound source, an error hydrophone, and an electronic controller programmed with an adaptive filter. The adaptive filter is updated using the filtered-x least mean square algorithm. Estimation of the incoming noise is performed using an adaptive notch filter. The performance of the active silencer is tested for pure tone noises below 500 Hz in a water-filled pipe connected to a reservoir. Notable reduction of noise is achieved with varying degrees of success at different bubble fractions.
| Original language | English |
|---|---|
| Pages (from-to) | 3127-3135 |
| Number of pages | 9 |
| Journal | Journal of Mechanical Science and Technology |
| Volume | 33 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2019 Jul 1 |
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All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
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Active control of low-frequency noise in bubbly water-filled pipes. / Noh, Eunghwy; Woo, Sangbeom; Lee, Dong Joo; Song, Min Ho; Lee, Jae Wan; Lee, Hunki; Ohm, Won Suk; Jang, Hada; Lee, Keunsang; Park, Youngcheol; Seo, Youngsoo.
In: Journal of Mechanical Science and Technology, Vol. 33, No. 7, 01.07.2019, p. 3127-3135.Research output: Contribution to journal › Article
TY - JOUR
T1 - Active control of low-frequency noise in bubbly water-filled pipes
AU - Noh, Eunghwy
AU - Woo, Sangbeom
AU - Lee, Dong Joo
AU - Song, Min Ho
AU - Lee, Jae Wan
AU - Lee, Hunki
AU - Ohm, Won Suk
AU - Jang, Hada
AU - Lee, Keunsang
AU - Park, Youngcheol
AU - Seo, Youngsoo
PY - 2019/7/1
Y1 - 2019/7/1
N2 - 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. In this light the effect of bubbles on active noise control in water-filled pipes is explored, and a design guideline for a robust active silencer is proposed. The silencer consists of an underwater sound source, an error hydrophone, and an electronic controller programmed with an adaptive filter. The adaptive filter is updated using the filtered-x least mean square algorithm. Estimation of the incoming noise is performed using an adaptive notch filter. The performance of the active silencer is tested for pure tone noises below 500 Hz in a water-filled pipe connected to a reservoir. Notable reduction of noise is achieved with varying degrees of success at different bubble fractions.
AB - 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. In this light the effect of bubbles on active noise control in water-filled pipes is explored, and a design guideline for a robust active silencer is proposed. The silencer consists of an underwater sound source, an error hydrophone, and an electronic controller programmed with an adaptive filter. The adaptive filter is updated using the filtered-x least mean square algorithm. Estimation of the incoming noise is performed using an adaptive notch filter. The performance of the active silencer is tested for pure tone noises below 500 Hz in a water-filled pipe connected to a reservoir. Notable reduction of noise is achieved with varying degrees of success at different bubble fractions.
UR - http://www.scopus.com/inward/record.url?scp=85068748664&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85068748664&partnerID=8YFLogxK
U2 - 10.1007/s12206-019-0608-3
DO - 10.1007/s12206-019-0608-3
M3 - Article
AN - SCOPUS:85068748664
VL - 33
SP - 3127
EP - 3135
JO - KSME Journal
JF - KSME Journal
SN - 1738-494X
IS - 7
ER -