Effects of Fleet-Angle on Sway Motions of a Cargo: Design Force Calculation

J. Ocean Eng. Technol. 2005;19(1):77-86.

SHIN JANG-RYONG;PARK YONG-HYUN;GOH SUNG-HEE;HONG KEUM-SHIK;

Daewoo Shipbuilding and Marine Engineering Ltd.;Daewoo Shipbuilding and Marine Engineering Ltd.;School of Mechanical Engineering, Pusan National University;School of Mechanical Engineering, Pusan National University;

로프각이 화물의 진자운동에 미치는 영향: 설계력의 계산

신장용;박영현;고성희;홍금식;

대우조선해양(주);대우조선해양(주);부산대학교 기계공학부;부산대학교 기계공학부;

Keywords: Design Force, Amplification Coefficient

핵심용어: 설계력, 증폭계수

Abstract

Over the last 10 years, significant changes have taken place in the world of container shipping. The size and the speed of the quay-side crane have been increased considerably. As a result, the stiffness of a crane is decreased and the sway oscillation of cargo may become violent. The purpose of this paper is to determine the design force caused by the sway oscillation of the cargo, lifted by four ropes, with an initial fleet angle, and the governing equations of the lifting system for an anti-sway control system design.