J. Ocean Eng. Technol. Search

CLOSE


J. Ocean Eng. Technol. 1994;8(2):93-104.    

Estimation of Sloshing Natural Periods in Liquid Cargo Tanks
액체 화물창내의 SLOSHING 고유주기 산정에 관한 연구
신장용,최경식,강신영,김현수
한국해양대학교 해양공학과,한국해양대학교 해양공학과,한국해양대학교 해양공학과,삼성중공업 선박해양연구소
© 1994 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Liquid Sloshing, Natural Periods, Resonance, Rectanguar Tanks with Baffles
핵심용어: 액체화물 슬로싱, 슬로싱 고유주기, 공진, 베풀이 설치된 직사각형 탱크
Abstract
Recently in the design of super tankers or LNG carriers which transport a large amount of liquid in the cargo holds, the structural damage due to liquid sloshing becomes an important problem. The impact pressure from sloshing is most violent when the liquid motion of a partially filled tank is in resonance with the motion of a ship. In this paper the sloshing natural periods in liquid cargo tanks are estimated for partially filled tanks with various geometries. Especially the sloshing periods of baffled tanks which are often installed to reduce liquid motion and sloshing forces are calculated. A variational method is adopted to analyze the baffled tank of arbitrary filling depth of liquid. In this approach the liquid domain is divided into several subdomains in which the analytic solutions are potential energy are calculated from the velocity potentials in eachsubdomain. By minimizing the Hamilton's functional, the sloshing natural periods are estimated and the results are compared with experimental and numerical results.


ABOUT
BROWSE ARTICLES
ARTICLE CATEGORY

Browse all articles >

PUBLICATION ETHICS
FOR CONTRIBUTORS
Editorial Office
President Office BD Rm. 1302, 13 Jungang-daero 180beon-gil, Dong-gu, Busan 48821, Republic of Korea
Tel: +82-51-759-0656    Fax: +82-51-759-0656    E-mail: ksoehj@ksoe.or.kr                

Copyright © 2024 by The Korean Society of Ocean Engineers.

Developed in M2PI

Close layer
prev next