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저작자표시-비영리-변경금지 2.0 대한민국 이용자는 아래의 조건을 따르는 경우에 한하여 자유롭게 l 이 저작물을 복제, 배포, 전송, 전시, 공연 및 방송할 수 있습니다. 다음과 같은 조건을 따라야 합니다: l 귀하는, 이 저작물의 재이용이나 배포의 경우, 이 저작물에 적용된 이용허락조건 을 명확하게 나타내어야 합니다. l 저작권자로부터 별도의 허가를 받으면 이러한 조건들은 적용되지 않습니다. 저작권법에 따른 이용자의 권리는 위의 내용에 의하여 영향을 받지 않습니다. 이것은 이용허락규약 ( Legal Code) 을 이해하기 쉽게 요약한 것입니다. Disclaimer 저작자표시. 귀하는 원저작자를 표시하여야 합니다. 비영리. 귀하는 이 저작물을 영리 목적으로 이용할 수 없습니다. 변경금지. 귀하는 이 저작물을 개작, 변형 또는 가공할 수 없습니다.

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Page 1: Disclaimer - Seoul National Universitys-space.snu.ac.kr/bitstream/10371/166510/1/000000158884.pdf · 2020-05-18 · ¥dwo m l ç h é ö ö l é ÷ ÷ j ´ ò i n ã ö ã ÷ ã ò

저 시-비 리- 경 지 2.0 한민

는 아래 조건 르는 경 에 한하여 게

l 저 물 복제, 포, 전송, 전시, 공연 송할 수 습니다.

다 과 같 조건 라야 합니다:

l 하는, 저 물 나 포 경 , 저 물에 적 된 허락조건 명확하게 나타내어야 합니다.

l 저 터 허가를 면 러한 조건들 적 되지 않습니다.

저 에 른 리는 내 에 하여 향 지 않습니다.

것 허락규약(Legal Code) 해하 쉽게 약한 것 니다.

Disclaimer

저 시. 하는 원저 를 시하여야 합니다.

비 리. 하는 저 물 리 목적 할 수 없습니다.

경 지. 하는 저 물 개 , 형 또는 가공할 수 없습니다.

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···················································································································ⅰ

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3.1.1. 난류 변동 압력 ·······································································6

3.1.2. 원형 수중청음기에 수신되는 난류 유동 소음 ·········11

3.1.3. 고주파 수동소나 자체소음 모의결과 ··························13

···························16

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·········· 19

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주파수에 따른 소음 준위 4.2.1. ················································20

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유동 속도 변화에 따른 소음 준위 4.2.2. ·······························20

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~

~

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exp

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⟨⟩

⟨⟩

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exp

× exp

exp

exp (6)

exp (7)

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10

(8)

(9)

exp (10)

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(11)

log (12)

⟨⟩ (13)

× exp

(14)

∞exp (15)

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⟨⟩

exp

×∞

exp

exp

(16)

exp

expcossin

(17)

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13

(18)

(19)

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청음기 반경 (a) 7 cm

청음기 반경 (b) 7 cm

속도 12 knots

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해양배경소음 미고려(a) 해양배경소음 고려(b)

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(a) Sea state 0 (b) Sea state 2

(c) Sea state 4

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(a) (b) (c)

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(a) Speed 6 knots (b) Speed 9 knots (c) Speed 12 knots

(d) Speed 15 knots (e) Speed 18 knots

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