Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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A Study on the Characteristics of Shaft Electric Motive Force of Controllable Pitch Propeller - Focusing on the M/V Segero -

가변피치 프로펠러의 축기전력 특성에 관한 연구 - 세계로호를 중심으로 -

  • Park, Kyung-Min (Division of Coast guard, Mokpo National Maritime University) ;
  • Im, Myeong-Hwan (Division of Cadet Training, Mokpo National Maritime University) ;
  • Choe, Sang-Bom (Division of Cadet Training, Mokpo National Maritime University) ;
  • Ahn, Byong-Won (Division of Marine Engineering, Mokpo National Maritime University)
  • 박경민 (목포해양대학교 해양경찰학부) ;
  • 임명환 (목포해양대학교 승선실습과정부) ;
  • 최상범 (목포해양대학교 승선실습과정부) ;
  • 안병원 (목포해양대학교 기관시스템공학부)
  • Received : 2021.11.08
  • Accepted : 2022.02.25
  • Published : 2022.02.28
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Abstract

Most machines are made of several types of . In particular, the shaft system of the ship consists of the brass of the propeller blade and the stainless steel of the shaft. When dissimilar the electrolyte solution of seawater, a voltaic cell and a shaft electromotive force is generated. This electromotive force causes electrical corrosion of the bearing and shaft supporting the shaft system. prevent this corrosion, a shaft grounding system is installed in ships. As for the experimental method, various information acquired by designing a program to periodically measure the electromotive force of the controllable pitchpropeller) system using an A/D converter of NI. This study analyzed the generation and characteristics of accumulator electromotive force for CPP and considered the installation location of the grounding system to remove the accumulator electromotive force.

대부분의 기계는 여러 종류의 금속으로 구성된다. 특히 선박의 축계는 프로펠러 날개의 황동과 스테인리스로 된 축으로 이루어져 있다. 이 이종금속이 바닷물의 전해액에 들어가면 볼타 전지를 이루고, 기전력이 발생된다. 이 기전력은 축계를 받치고 있는 베어링과 축을 전기부식 시키는 원인이 된다. 선박에서는 이 부식을 막기 위해 선박에서는 축 접지 시스템을 설치하여 운용하고 있다. 본 연구는 가변피치 프로펠러의 축기전력을 측정하기 위하여 추진축의 전압과 주기관의 회전수를 동시에 측정하였다. 측정장치는 내셔널인스트루먼트사의 24bit A/D컨버터를 사용하여 측정하였고, 프로그램은 LabVIEW를 사용하였다. 주기관의 회전수와 축기전력의 발생, 블레이드 각도에 따른 기전력과, 배의 항해 방향에 따른 축기전력을 측정하고 분석하였다.

Keywords

References

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