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Volume 36 Issue 7
Jul.  2010
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Journal of Beijing University of Aeronautics and Astronautics  > 2010  >  36(7): 808-811.
Luo Guailin, Wang Jinjun. Integrated methods for cabin noise control[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(7): 808-811. (in Chinese)
Citation: Luo Guailin, Wang Jinjun. Integrated methods for cabin noise control[J]. Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(7): 808-811. (in Chinese)
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Integrated methods for cabin noise control

  • Fluid Mechanics Key Laboratory of Education Ministry, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 05 Jan 2010
  • Publish Date: 30 Jul 2010
    Abstract
  • When a domestic propeller aircraft was modified to an aerial testing platform, the cabin noise was too high to suffer. The characteristics of original cabin noise were tested in flight condition. The performance of various advanced noise descending materials were tested and compared in an acoustic laboratory. According to the noise speciality of propeller aircraft, a totally new anti-noise crease plate which can segregate noise and decorate the cabin was developed. To simulate and test the cabin noise of propeller aircraft authentically, a method called sound segregate performance test within noise reverberation chamber-noise elimination chamber was suggested. The combination effect of various noise descending materials was verified in an abandon section of fuselage. Based on the test result, the integrated methods for cabin noise control were determinated. Flight test of the modified aircraft shows that the methods are quite effective.

     

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