纵浪中影响半潜船航行安全的因素及作用机理  

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

作　　者：李晓君 谢新连 周然 朱乐群 刘雪宜 LI Xiao-jun;XIE Xin-lian;ZHOU Ran;ZHU Le-qun;LIU Xue-yi(Tianjin Research Institute for Water Transport Engineering M.O.T.,Tianjin 300456,China;Transportation Engineering College,Dalian Maritime University,Dalian 116026,China;Offshore Oil Engineering CO.LTD.,Tianjin 300461,China)

机构地区：[1]交通运输部天津水运工程科学研究所,天津300456 [2]大连海事大学交通运输工程学院,辽宁大连116026 [3]海洋石油工程股份有限公司,天津300461

出　　处：《大连海事大学学报》2018年第3期9-14,共6页Journal of Dalian Maritime University

基　　金：科技部国家重点研发计划(2016YFE0204800);海洋石油工程股份有限公司科研项目(E-0817P003)

摘　　要：针对载有重大件货物的半潜船在长波海浪中航行时具有发生参数横摇的风险,构建半潜船的运动模型,找出诱发半潜船参数横摇的关键因素.然后,运用变参数分析法定量计算分析波浪长度、波浪高度、初稳性高度和航速变化等关键因素对半潜船航行安全的影响程度及作用规律.最后,基于案例分析,获得半潜船不发生参数横摇时各关键因素取值区间.该问题的研究有利于推动半潜船稳性规范的完善与统一.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.

关 键 词：半潜船 航行安全 参数横摇 初稳性高度 

分 类 号：U661.2[交通运输工程—船舶及航道工程]