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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2016, Vol. 37 ›› Issue (8): 2370-2384.doi: 10.7527/S1000-6893.2016.0073

• Review • Previous Articles     Next Articles

Research status of aircraft interior noise

ZUO Kongcheng, CHEN Peng, WANG Zheng, TIAN Hao, TANG Daofeng   

  1. Aerodynamic Noise Control Key Laboratory, China Aerodynamics Research and Development Center, Mianyang 621000, China
  • Received:2016-01-18 Revised:2016-03-02 Online:2016-08-15 Published:2016-05-11

Abstract:

One of the most important factors influencing passengers' comfortableness for civil aircraft is interior noise whose minimization is one of the goals for all countries in the world. This paper reviews the identification of noise sources/transmission paths, interior noise reduction measures, acoustic test and simulating calculation after introducing the characteristics of exterior noise sources. Thereinto, the discussion of identification of noise sources/transmission paths is carried out through various identification techniques, including frequency analysis, coherence techniques, source/path modification and identification of airborne/structure-born paths. The passive and active control concerning aircraft cabin noise reduction is introduced comprehensively. Active control can identify and control the noise sources with an auto-negotiation way in the event that passive control can modify and optimize the noise transmission paths, and then both their advantages and disadvantages are provided. For noise test and simulation, this paper firstly introduces current domestic and overseas research situation of ground test and points out domestic drawbacks. Whereafter, the paper presents the methods of simulating calculation and lists their range of application. At the end of this paper, the current existing problems and challenges of aircraft cabin noise are referred and possible future research direction is proposed.

Key words: interior noise, noise source, transmission path, noise reduction, aircraft

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