한국항공운항학회지 (Journal of the Korean Society for Aviation and Aeronautics)

  • 제20권3호
  • /
  • Pages.44-50
  • /
  • 2012
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  • 1225-9705(pISSN)
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  • 2466-1791(eISSN)
한국항공운항학회 (The Korean Society for Aviation and Aeronautics)
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중형항공기 동체 소음해석 기법 연구

The Study for Vibro-acoustic Noise Analysis in the Fuselage of Regional Turboprop Airplane

  • 투고 : 2012.08.20
  • 심사 : 2012.09.19
  • 발행 : 2012.09.30
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초록

The noise reduction is important one of considerations in the process of a civil aircraft development program. External noise sources are classified into an air-born source and a structure-born source. Among these noise sources, the most affected noise source into a cabin is the air-born noise source from an engine or propeller. The external noise is transmitted into the cabin through the fuselage structure of airplane which are composed of an fuselage structure, an interior trim panel and an acoustic insulation layer between an fuselage structure and an interior trim panel. Therefore, appropriate fuselage structure and acoustic insulation layer is very important to reduce the internal noise level. In this paper, the vibro-acoustic coupled analysis of the cabin noise of the 80~90 seats regional turboprop aircraft is carried out to validate the acoustic analysis method using Direct BEM and FEM. The sound pressure level onto the fuselage skin is acquired by fan-source noise analysis using BEM, and which sound pressure is used as acoustic noise source in vibro-acoustic noise analysis for cabin noise analysis using FEM.

키워드

과제정보

연구 과제번호 : 민항기 친환경 에너지 절감 및 시험평가 기술개발

연구 과제 주관 기관 : 지식경제부

참고문헌

  1. 최영휴., "산업소음공학; Industrial Noise Engineering," 도서출판 YOUNG, Dec, 2009, pp. 54-60.
  2. "14 CFR Part25; Airworthiness Standards: Transport Category Airplanes," Federal Aviation Administration, Dec, 2008.
  3. "29 CFR Part1910; Occupational Safety and Health Standards," Occupational Safety & Health Administration, Dec, 2008.
  4. Mixson, J.S., and Powell, C.A., "Review of Recent Research on Interior Noise of Propeller Aircraft,"AIAA/NASA 9th Aeroacoustics Conference, AIAA Paper 84-2349, Williamsburg, VA., Oct, 1984.
  5. "Aeroacoustic Simulation using LMS Virtual. Lab Acoustics Rev9," LMS International, Leuven, Belgium.
  6. Dandaroy, I., and Bhuiyan, M. T., "Vibro-acoustic Modeling of Turboprop Aircraft Interior Noise using Finite Element Method/Boundary Element Method," INTER-NOISE 2006, Honolulu, HW., Dec, 2006.
  7. Ahlquist, J. R., Huguenet, P., and Higueras, J. I. P., "Coupled FEM/BEM Vibroacoustic Modeling of Turbopropeller Cabin Noise," AIAA/CEAS 16th Aeroacoustics Conference, AIAA Paper 2010-3948.
  8. "LMS Virtual. Lab Aero-Acoustics Training; A Next Generation Solution for Functional Performance Engineering," LMS International, Leuven, Belgium.

피인용 문헌

  1. Short-term annoyance reduction evoked by active noise control method on turboprop regional aircraft cabin noise vol.33, pp.4, 2012, https://doi.org/10.1007/s12206-019-0309-y