极限载况下的船舶艉轴变形安全状态评估  

Safety Assessment of the Ship’s Stern Shaft Deformations under Extreme Load Conditions

作　　者：袁梦 蔡连财 刘志恒 李卫锋 徐逸然 霍浩杰 YUAN Meng;CAI Lian-cai;LIU Zhi-heng;LI Wei-feng;XU Yi-ran;HUO Hao-jie(COSCO Shipping Specialized Carriers Co.Ltd.,Guangzhou 510623,China;Shanghai Marine Equipment Research Institute,Shanghai 200031,China)

机构地区：[1]中远海运特种运输股份有限公司,广州510623 [2]中国船舶集团有限公司第七〇四研究所,上海200031

出　　处：《船海工程》2024年第4期60-65,共6页Ship & Ocean Engineering

基　　金：国家自然科学基金(U20A20328)。

摘　　要：针对船舶设计建造阶段轴系校中计算不能完全覆盖实际运营极限工况的问题,以某半潜船极限载况实船航行为例,利用直接计算法得到波浪中航行时的船体变形,提出一种实船航行艉轴变形安全评估方法。该方法基于设计波法确定船体波浪载荷,利用全船有限元计算船体艉轴变形,依据规范采用轴系校中的方法评估艉轴安全,并通过船舶装载手册验证数据的可靠性,是一种有效完整的艉轴变形安全模拟评估方法。Safety assessment of stern shaft deformation during the ship design and construction stage cannot fully cover the actual sailing conditions.A method for safety assessment of stern shaft deformation of ships sailing in waves was proposed,by using an actual extreme sailing condition of semi-submersible vessel as example.The hull wave load was determined by the design wave method;the hull stern shaft deformation was direct calculated by using the whole ship finite element model,and the shaft safety assessed by shaft alignment calculation according to rules,reliability of the assessment also verified by using ship loading manual.This method was verified to be a valid and complete method for stern shaft safety assessment.

关 键 词：艉轴 船体变形 设计波法 船舶 

分 类 号：U664.21[交通运输工程—船舶及航道工程]