大连海事大学学报 >
2017 , Vol. 43 >Issue 1: 14 - 18
DOI: https://doi.org/10.16411/j.cnki.issn1006-7736.2017.01.003
开敞水域半潜船初稳性高度限值的确定
收稿日期: 2016-09-02
修回日期: 2016-10-13
网络出版日期: 2016-10-13
基金资助
国家自然科学基金资助项目(71570125);中央高校基本科研业务费专项基金资助项目(3132016358).
Determination of metacentric height limits for semi-submersible vessel in the open sea
Received date: 2016-09-02
Revised date: 2016-10-13
Online published: 2016-10-13
李晓君 , 谢新连 , 林岩 . 开敞水域半潜船初稳性高度限值的确定[J]. 大连海事大学学报, 2017 , 43(1) : 14 -18 . DOI: 10.16411/j.cnki.issn1006-7736.2017.01.003
Ship motion equations with two freedom degrees of rolling and heaving were used to simulate the nonlinear rolling of semi-submersible vessel under the condition of ship length being the wave length and the encounter frequency being twice natural frequency of rolling. It was found that theoretically the parametric rolling can happen for the semi-submersible vessel at zero speed. Based on the Level 1 vulnerable criteria of parametric rolling, the metacentric height limits formula in open sea was proposed, and a calculation case was carried out. Results indicate that this formula is simple and reasonable.
Key words： semi-submersible vessel; open sea; metacentric height; parametric rolling
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