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A Study on the Improvement of the Mast Design for Wind Detector

풍향풍속 검출기 마스트 설계 개선에 관한 연구

  • Kim, Dong-Young (Naval Sea System Team 2, Defense Agency for Technology and Quality) ;
  • Park, Hae-Jin (Naval Sea System Team 2, Defense Agency for Technology and Quality)
  • 김동영 (국방기술품질원 함정센터 함정2팀) ;
  • 박해진 (국방기술품질원 함정센터 함정2팀)
  • Received : 2021.02.01
  • Accepted : 2021.05.07
  • Published : 2021.05.31

Abstract

During the sea trial test for the aerovane in AOE-II, a malfunction occurred in the wind detector movement around 40 to 90° on the starboard side and around 270 to 320° on the port side. The purpose of this study was to analyze and improve the cause of the above phenomenon. The wind detector was covered with a mast structure and was not affected directly by the blowing wind, and a vortex air current was formed behind the mast structure, causing the motion malfunction. The above problem was solved by moving and installing the wind detector on the newly installed mast yard. After conducting vibration analysis and reviewing the effects of vibration, the wind detector was installed in the new mast yard and verified by a sea trial test. Since the improvement plan was slightly effective, the position of the wind detector moved away from the mast on the new mast yard and was re-verified through a sea trial test. The movement malfunction of the wind detector did not occur, confirming that it is an appropriate improvement plan.

차기군수지원함(AOE-II) 풍향풍속계 장비에 대해서 항해시운전평가 결과, 함의 우현에서는 40~90도 부근, 좌현에서는 270~320도 부근에서 풍향풍속 검출기 움직임 오작동 현상이 발생되었다. 위의 현상에 대한 원인을 분석하고 개선하는 것이 본 연구의 목적이었다. 원인 추정으로 풍향풍속 검출기가 마스트 구조물에 가려져서 불어오는 바람의 직접적인 영향을 받지 않게 되고, 마스트 구조물 뒤쪽으로 와류 기류가 형성되어 움직임 오작동 현상을 발생시켰다고 추정하였다. 위의 문제를 해결하기 위해서 신규 설치되는 마스트 야드에 풍향풍속 검출기를 이동 설치하는 방안을 검토하였다. 진동 해석을 실시하여 진동 영향성을 검토 후 신규 마스트 야드에 풍향풍속 검출기를 설치하여 항해시운전평가로 검증하였다. 개선 방안이 일부 유효하여, 신규 마스트 야드에서 풍향풍속 검출기 위치를 마스트와 이격하여 이동 설치 후 항해시운전평가로 다시 검증하였다. 풍향풍속 검출기 움직임 오작동 현상이 더 이상 발생하지 않아서 적절한 개선방안으로 확인되었다.

Keywords

References

  1. H. W. Kim, Y. C. Ju, D. H. Lee, K. S. Lee, K. H. Kim, E. I. Kim, "Experimental Research on the Effects of Wind Data with the Erroneous Azimuthal and Attitudinal Position of the Wind Measurement Mast", Proceedings of the KIEE Conference, The Korean Institute of Electrical Engineers, Republic of Korea, pp.480-484, April 2001.
  2. S. W. Ko, M. S. Jang, Y. S. Lee, "The Error Analysis of measuring wind speed on Met Mast Shading Effect", Journal of the Korean Solar Energy Society, Vol.31, No.3, pp.1-7, June 2011. DOI: http://dx.doi.org/10.7836/kses.2011.31.3.001
  3. H. M. Kim, W. H. Kim, "Research on the Flow Characteristics of the Rear Area of Integrated Sensor Mast for Naval Vessels by Incoming Flow Rate", Proceedings of the KSPE Conference, The Korean Society for Precision Engineering, Republic of Korea, pp.387-388, October 2018.
  4. J. H. Park, J. K. Ryu, J. Jang, "Ship Mast Wind Pressure Analysis using Numerical Analysis", Proceedings of the KSPE Conference, The Korean Society for Precision Engineering, Republic of Korea, pp.21, October 2016.
  5. J. H. Park, D. Y. Lee, J. W. Yang, C. Y. Song, "Design Enhancement to Avoid Radar Mast Resonance in Large Ship using Design of Experiments", Journal of Ocean Engineering and Technology, Vol.33, No.1, pp.50-60, February 2019. DOI: http://dx.doi.org/10.26748/KSOE.2018.088
  6. J. W. Son, D. H. Kim, B. W. Choi, Y. J. Lee, "Design and Strength Analysis of a Mast and Mounting Part of Dummy Gun for Multi-Mission Unmanned Surface Vehicle", The Journal of Korean institute of information technology, Vol.16, No.11, pp.51-59, November 2018. DOI: http://dx.doi.org/10.14801/jkiit.2018.16.11.51