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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.11
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- 1,059 - 1,066 (8page)
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이 논문의 연구 히스토리 (5)
2011
2010
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The micro-perforated panel absorber(MPPA) is one of promising noise control elements because of its applicability to extreme environments where general porous materials cannot be used. Since the MPPA is inherently non-porous sound absorber, it can be a good candidate of acoustic protection system of a space launcher. The overall sound pressure level inside payload fairings of commercial launch vehicles is so high(around 140 dB OASPL) that the conventional linear impedance model cannot be directly applied to the design of the acoustic protection systems. In this paper an acoustic impedance models of a micro-perforated panel absorber at high sound pressure environment were reviewed and the use of the impedance on the practical design of MPPAs was addressed. The variation of absorption characteristics of MPPA was discussed according to the design parameters, e.g., perforation ratio, the minute hole diameter, the thickness of MPP and the incident sound pressure level.
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참고문헌 (12)
참고문헌 신청
1. [학술대회논문] - Park, S.-H. / 2006 / Lift-off Vibro-acoustic Analysis of the Upper Stage of Small Launch Vehicle / ICSV 13
2. [학술대회논문] - Troclet, B. / 1999 / Synthesis of Vibroacoustic Studies Performed during Ariane 5 Program / 1er Colloque Europeen sur la Technologie des Lanceurs "Vibration des Lanceurs" Toulouse
4. [학술대회논문] - Park, S.-H. / 2009 / Experimental Evaluation of Passive Acoustic Absorbers for the Reduction of Acoustic Loads of Launch Vehicles / Proceedings of the KSNVE Annual Autumn Conference : 615 ~ 616
5. [학술지(정기간행물)] - Ingard, U / 1950 / Acoustic Circulation Effects and the Nonlinear Impedance of Orifices / J. Acoust. Soc. Am 22 (2) : 211 ~ 218
6. [학술지(정기간행물)] - Maa, D.-Y. / 1998 / Potential of Microperforated Panel Absorber / J. Acoust. Soc. Am 104 (5) : 2861 ~ 2866
2. [학술대회논문] - Troclet, B. / 1999 / Synthesis of Vibroacoustic Studies Performed during Ariane 5 Program / 1er Colloque Europeen sur la Technologie des Lanceurs "Vibration des Lanceurs" Toulouse
4. [학술대회논문] - Park, S.-H. / 2009 / Experimental Evaluation of Passive Acoustic Absorbers for the Reduction of Acoustic Loads of Launch Vehicles / Proceedings of the KSNVE Annual Autumn Conference : 615 ~ 616
5. [학술지(정기간행물)] - Ingard, U / 1950 / Acoustic Circulation Effects and the Nonlinear Impedance of Orifices / J. Acoust. Soc. Am 22 (2) : 211 ~ 218
6. [학술지(정기간행물)] - Maa, D.-Y. / 1998 / Potential of Microperforated Panel Absorber / J. Acoust. Soc. Am 104 (5) : 2861 ~ 2866
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