軸心이 不一致한 船尾管 密封裝置에서 시일 링의 擧動과 應力解析에 關한 硏究

• 영문명: A Study on the Behaviour and the Stress Analysis of Seal Rings in the Eccentric Stern Tube Sealing System
• 발행기관: 한국해양대학교 해사산업연구소
• 저자명: 전효중(H.J.Jeon) 왕지석(J.S. Wang) 김영주(Y.J. Kim) 남연길(J.K. Nam)
• 간행물 정보: 『해사산업연구소논문집』제1집, 151~169쪽, 전체 19쪽
• 주제분류: 공학 > 해양공학
• 파일형태: PDF
• 발행일자: 1991.05.01

영문 초록

To analize the behaviour of seal rings in the stern tube sealing system of which the propeller shaft is eccentric to the stern tube, stress analysis of axi-symetric body with non-symetric loading and non-symetric given displacements is investigated in this paper using the finite element method. As the non-symetric loads and non-symetric given displacements of axi-symetric body are generally periodic functions of angle e, the nodal forces and nodal displacements can be expanded in cosine and sine series, that is, Fourier series. Furthermore, using Euler's formula, the cosine and sine series can be converted into exponential series and it is proved that the related calculus become more clear. Substituting the nodal displacements expanded in Fourier series into the strain components of cylindrical coordinates system, the element strains are expressed in series form and by the principal of virtual work, the element stiffnes martix and element load vector are obtained for each order. It is also shown that if the non-symetric loads are even or odd functions of angle e, the stiffness matrix and load vector of the system are composed with only real numbers and relatively small capacity of computer memory is enough for caculation.

목차

Abstract

1. 서론

2. 함수의 Fourier 급수 전개

3. 비대칭 하중과 변위를 받는 축대칭 물체의 유한요소 정식화

4. 우함수이거나 기함수인 경우

5. 계산예

6. 축심이 불일치한 선미관 밀봉장치

7. 결론

참고문헌