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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.8
- 수록면
- 281 - 288 (8page)
- DOI
- 10.3744/SNAK.2018.55.4.281
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초록· 키워드
오류제보하기
Acoustic radiation efficiency is a crucial factor to estimate Underwater Radiated Noise (URN) of ships accurately. This paper describes a numerical method to analyse acoustic radiation efficiency of one side-wetted rectangular Mindlin plate with simply supported boundaries excited by a harmonic point force. Transverse displacements of plate and acoustic radiation pressures are evaluated by the mode superposition method. The acoustic radiation efficiencies analyzed by both Mindlin and thin plate theories show little differences at monopole and corner modes of low frequency regions but relatively large differences at edge and critical modes of high frequency regions. Especially, the critical frequency with the highest acoustic radiation efficiency evaluated by the Mindlin plate theory is higher than that of thin plate theory. In addition, the acoustic loading effect of fluid also increases bending wave-number of plate and its critical frequency. Finally, the acoustic radiation characteristics of plates with different aspect ratios and thicknesses through numerical analyses are investigated and discussed.
목차
1. 서론
2. Mindlin 판의 음향방사효율 수치해석
3. 평판의 임계주파수
4. 음향방사효율 수치해석
5. 결론
References
참고문헌 (21)
참고문헌 신청
[학술지(정기간행물)] - Berry, A. / 1990 / A general formulation for the sound radiation from rectangular, baffled plates with arbitrary boundary conditions / The Journal of the Acoustical Society of America 88 (6) : 2792 ~ 2802
[학술지(정기간행물)] - Cao, X. / 2011 / Sound radiation from shear deformable stiffened laminated plates / Journal of Sound and Vibration 330 (16) : 4047 ~ 4063
[학술지(정기간행물)] - Cheng, Z. / 2012 / Radiation efficiency of submerged rectangular plates / Applied Acoustics 73 : 150 ~ 157
[학술지(정기간행물)] - Gomperts, M.C. / 1977 / Sound radiation from baffled, thin, rectangular plates / Acta Acustica United with Acustica 37 (2) : 93 ~ 102
[기타자료] - International Maritime Organization / 2014 / IMO MEPC.1/Circ.833: Guidelines for the reduction of underwater noise from commercial shipping to address adverse impacts on marine life / IMO
[학술지(정기간행물)] - Cao, X. / 2011 / Sound radiation from shear deformable stiffened laminated plates / Journal of Sound and Vibration 330 (16) : 4047 ~ 4063
[학술지(정기간행물)] - Cheng, Z. / 2012 / Radiation efficiency of submerged rectangular plates / Applied Acoustics 73 : 150 ~ 157
[학술지(정기간행물)] - Gomperts, M.C. / 1977 / Sound radiation from baffled, thin, rectangular plates / Acta Acustica United with Acustica 37 (2) : 93 ~ 102
[기타자료] - International Maritime Organization / 2014 / IMO MEPC.1/Circ.833: Guidelines for the reduction of underwater noise from commercial shipping to address adverse impacts on marine life / IMO
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UCI(KEPA) : I410-ECN-0101-2018-538-003345902