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선박 추진축 선미 베어링 압력 분포 해석

Pressure Distribution Analysis for After Bush Bearing of Ship Propulsion Shaft

  • 신상훈 (현대중공업 선박해양연구소) ;
  • 최익흥 (현대중공업 선박해양연구소)
  • 발행 : 2004.06.01

초록

Since the scale of vessels is growing up recently, some troubles between the shaft and after bush bearing are frequently reported. Generally, mean pressure on bush bearing is used as a design criterion. However, in some case of the long bearing such as after bush bearing of the propulsion shaft, it might be liable to be locally under high pressure. As for the main engine bearings and the intermediate shaft bearing, it is reasonable to take the mean pressure as a design criterion. But, in case of after bush bearing, it is not sufficient because of the possibility of high pressure caused by local contact. In this study, Hertzian contact condition was applied to evaluation of the local pressure for after bush bearing. To reduce the local maximum pressure, the height of the after bush bearing was controlled. It was found that local maximum pressure could be reduced effectively by taking a partial slope on the white metal of the aft bush bearing.

키워드

참고문헌

  1. 대한조선학회, 한국표준연구소, 1976, 추진축계표준, 공업진흥청.
  2. 전효중, 1983, 축계장치와 추진기, 일중사
  3. Johnson, K.L., 1989, Contact Mechanics, Cambridge University Press.
  4. Bureau Veritas, 1987, Method of Calculations of Contact Conditions of Secondary Elastic Alignment of Line Shafting, Appendix C.V.

피인용 문헌

  1. A Feasibility Study on the Application of Stern Tube Unit for the Twin Skeg LNG Carrier vol.53, pp.4, 2016, https://doi.org/10.3744/SNAK.2016.53.4.282
  2. Propulsion Shafting Alignment Analysis Considering the Interaction between Shaft Deflection and Oil Film Pressure of Sterntube Journal Bearing vol.53, pp.6, 2016, https://doi.org/10.3744/SNAK.2016.53.6.447