軸系 密封裝置 設計 電算化 硏究

• 영문명: A Study on Computerizing the Sealing System Design of Propeller Shaft
• 발행기관: 한국해양대학교 해사산업연구소
• 저자명: 전효중(H.J. Jeon) 왕지석(J.S. Wang) 김의간(U.K. Kim) 김수열(S.Y. Kim)
• 간행물 정보: 『해사산업연구소논문집』제1집, 171~205쪽, 전체 35쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 1991.05.01

영문 초록

Lip type stern tube sealing systems have used in almost all the middle or large ships which are being constructed in these days. It seems that the pressure fluctuation of the seal ring interspace, the cross-section profile and the materials quality of the seal rings have great effects on the sealing function of this sealing system. In this paper, the mechanical movement of lip seal ring which plays the most important role in stern tube sealing system and the possibility of leakage caused by pressure fluctuation are studied by theory and experiment. Using the finite element method for the axi-symetric object which receives the torsional load, the displacement and stress analysis of the seal rings are executed for products of several representaitive manufactrers of seal rings, and also the possibility of crack occurance is checked by theoretical analysis. If the force which seal ring lip periphery receives is too small, there will be the possibility of leakage caused by the pressure fluctuation of the seal ring interspace, and if this force is too large, the frictional force between the seal ring and the liner will become large, the excessve wear of lip tip will occurs, and in the end its endurance will become problematical. The possibility of leakage caused by hardening of seal ring materials and creep phenomena of tested seal rings are also examined. The trial seal rings were designed and manufactured using the porgram of displacement and stress analysis developed in this study and the experimantal apparatus to test the trial seal rings was also designed and manufactured. This trial seal rings were fitted in the experimental apparatus which was made in the same form as an actual stern tube. The one side of this apparatus was filled with sea water and the other side of it was filled with the lubricating oil. The leakage of oil and sea water was checked and the temperature was measured, rotating the propeller shaft at the constant velocity by D.C. motor. It was proved that the trial seal rings made in Viton rubber functioned excellenty but the trial seal rings made in N.B.R. rubber had problem in its durability.

목차

Abstract

1. 서론

2. 유한요소법에 의한 해석

3. 각 제작회사 기재 제품들의 비교 및 고찰

4. 시제품의 단면형상과 특성

5. ？이스 시일(Face seal)

6. 예비실험

7. 본 실험

8. 결론

참고문헌