한국군사과학기술학회지 (Journal of the Korea Institute of Military Science and Technology)

  • 제24권2호
  • /
  • Pages.228-236
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  • 2021
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  • 1598-9127(pISSN)
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  • 2636-0640(eISSN)
한국군사과학기술학회 (The Korea Institute of Military Science and Technology)
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선형펌프방식 압축수 시스템의 실험적 수중소음인자별 경향분석 연구

A Study on the Experimental Trend Analysis of Underwater Noise Factors in Compressed Water System of the Linear Pump Type

  • 이종주 (국방과학연구소 해양기술연구원) ;
  • 안강수 (국방과학연구소 해양기술연구원) ;
  • 서종무 (국방과학연구소 해양기술연구원)
  • Yi, Jong-ju (Maritime Technology Research Institute, Agency for Defense Development) ;
  • Ahn, Kang-su (Maritime Technology Research Institute, Agency for Defense Development) ;
  • Sur, Jong-mu (Maritime Technology Research Institute, Agency for Defense Development)
  • 투고 : 2021.01.04
  • 심사 : 2021.03.12
  • 발행 : 2021.04.05
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초록

In order to understand the underwater noise source factor of the linear pump type forced ejection system, a reduced-model compressed water experiment device was developed. The reduced-model compressed water experiment device consists of a reverberation tank, a linear pump type forced ejection device, and an underwater vehicle. The underwater noise source was selected from the hydraulic ram moving speed, the hydraulic ram/piston pipe spacing, the ejection pipe inlet/water ram area ratio, and the number of water ram inlets. The underwater vehicle was ejected into the reverberation tank by the device. The source level was derived from the measured sound pressure. The source level tends to increase as the hydraulic ram/piston tube spacing and the hydraulic ram moving speed increase. The source level tended to increase as the area ratio was increased, but the level was weak. The number of water ram inlet did not affect the source level.

키워드

참고문헌

  1. Takahashi, S., Kikuchi, T. and Ogura, A., "Measurements of Underwater Absorption Coefficient by the Reverberation Method, Japanese Journal of Applied Physics, Vol. 25, Supplement 25-1, pp. 112-114, 1986. https://doi.org/10.7567/JJAPS.25S1.112
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  5. Kookhyun Kim, Jang-Yeon Hwang, Dea-Seung Cho, Jongju Lee, "Scaled Model Test of Compressed Water Type Ejection System : Part 2 - Dynamic Characteristics," The Korean Society of Ocean Engineers Annual Conference Proceedings, pp. 154-156, 2019.
  6. Sunjoo Lee, "Numerical Investigation of Effect of Opening Pattern of Flow Control Valve on Underwater Discharge System Using Linear Pump," Journal of the Korea Institute of Military Science and Technology, Vol. 22, No. 2, pp. 255-265, 2019. https://doi.org/10.9766/KIMST.2019.22.2.255