Sound Field Analysis Method for Noise Reduction in Fairing Materials and Structures
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Aerospace Research Institute of Materials & Processing Technology,Beijing 100076

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V45

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    Abstract:

    In order to improve the acoustic-vibration environment inside the fairing,the most common and efficient method is laying noise reduction materials on the inner wall of fairing to reduce the sound pressure level of noise.In this paper, the engineering application and research progress of fairing noise reduction materials and applicable frequency bands at home and abroad were summarized.Baseline properties and noise reduction principles of several main noise reduction materials were introduced in detail.On top of all, suggestions for the research and development of noise reduction materials in China were put forward.

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History
  • Received:May 13,2022
  • Revised:September 19,2022
  • Adopted:September 20,2022
  • Online: December 15,2023
  • Published: December 30,2023