Dynamic Torsional Analysis of Ship with Large Hatch Opening

• Main Authors: Jey-Zen Chan, 陳智仁
• Other Authors: W.H.Wang
• Format: Others
• Language: zh-TW
• Published: 1994
• Online Access: http://ndltd.ncl.edu.tw/handle/96622099957401650972

碩士 === 國立海洋大學 === 造船工程學系 === 82 === The module ship segment elements were used to build the coupled horizontal bending and torsional vibration of the ship with large hatch opening. The natural frequencies and mode shapes were solved by distributed-mass transfer matrix method and the boundary conditions at fore and after ends were applied. The equations of motion in global coordinate system were derived using Hamilton's variational principle. Then, the discontinuities between ship segments, the strengthened effect of the cross decks, the horizontal vibration added mass and the torsional added polar moment of inertia were considered. The analysis results of a box beam with opening in this paper show good coincidence by comparied with the results of the referance[11].