Factors affecting&nbsp; the navigation safety of semi-submersible vessels in longitudinal waves and their mechanism

LI Xiao-jun; XIE Xin-lian; ZHOU Ran; ZHU Le-qun; LIU Xue-yi

doi:10.16411/j.cnki.issn1006-7736.2018.03.002

Journal of Dalian Maritime University >

2018 , Vol. 44 >Issue 3: 9 - 14

DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2018.03.002

Factors affecting the navigation safety of semi-submersible vessels in longitudinal waves and their mechanism

LI Xiao-jun ,
XIE Xin-lian ,
ZHOU Ran ,
ZHU Le-qun ,
LIU Xue-yi

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(1. Tianjin Research Institute for Water Transport Engineering M.O.T., Tianjin 300456, China; 2. Transportation Engineering College, Dalian Maritime University, Dalian 116026, China; 3. Offshore Oil Engineering CO. LTD, Tianjin 300461, China)

Received date: 2018-05-28

Revised date: 2018-07-07

Online published: 2024-06-27

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Abstract

A semi-submersible vessel’s motion model was constructed in order to find out the key factors to induce the parameter rolling for semi-submersible vessels carrying heavy cargo in the long waves. Then, the variable parameter analysis method was used to quantitatively calculate and analyze the influence degree and rule of the key factors including the wave length, wave height, metacentric height and speed variation on the navigation safety of the semi-submersible vessels. Finally, based on the case analysis, the critical interval values of semi-submersible vessels without parametric roll are obtained. The study of this problem will help improve and standardize the stability criterion of semi-submersible vessels.

Key words： semi-submersible vessels; navigation safety; parametric rolling; metacentric height

Cite this article

LI Xiao-jun , XIE Xin-lian , ZHOU Ran , ZHU Le-qun , LIU Xue-yi . Factors affecting the navigation safety of semi-submersible vessels in longitudinal waves and their mechanism[J]. Journal of Dalian Maritime University, 2018 , 44(3) : 9 -14 . DOI: 10.16411/j.cnki.issn1006-7736.2018.03.002

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