한국생산제조학회지 (Journal of the Korean Society of Manufacturing Technology Engineers)

  • 제25권6호
  • /
  • Pages.479-485
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  • 2016
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  • 2508-5093(pISSN)
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  • 2508-5107(eISSN)
한국생산제조학회 (The Korean Society of Manufacturing Technology Engineers)
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40 mm 중구경 화포용 천공형 소음기 설계

A Muffler with Ventilation Holes for a 40 mm Medium Caliber Gun

  • Lee, Hae-Suk (The 8th Research and Development Institute, Agency for Defense Development) ;
  • Hong, Jun-Hee (Department of Mechanical Engineering, Chungnam National University)
  • 투고 : 2016.07.26
  • 심사 : 2016.11.25
  • 발행 : 2016.12.15
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초록

A 40 mm medium caliber gun to be equipped with ventilation holes is designed and manufactured in this study. The muffler used is composed of holes, blades, and several spaces in the tube. Accordingly, a numerical analysis is performed with computational fluid dynamics (CFD) before testing the muffler. The validity of the numerical analysis is examined by analyzing the differences between the measured data of the firing test and the results of the CFD analysis. The CFD analysis showed that the numerical analysis can be used positively in the muffler design because no difference exists between the results of the field test and the CFD analysis. The test result also indicated a noise reduction of approximately 10 dB. Moreover, the muzzle velocity is almost equivalent, regardless of the muffler.

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참고문헌

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