船舶推进轴系冲击性能预估和影响因素分析  

Shock response and influencing factors analysis for ship propulsion shafting

作　　者：马炳杰[1] 王志刚[1] 姚辉[1] 

机构地区：[1]中国船舶重工集团公司第711研究所,上海200090

出　　处：《大连海事大学学报》2011年第4期13-16,共4页Journal of Dalian Maritime University

摘　　要：基于有限元方法,以船舶推进轴系为研究对象,对轴系各个部件的有限元建模方法进行讨论并建立轴系抗冲击元模型.分别针对影响轴系抗冲击性能的五个重要因素,即轴承刚度、轴系转速、螺旋桨推力、几何非线性、轴承间隙进行分析并得出具有参考意义的结论.同时,对系统中诸多非线性因素,采用时域模拟法对其抗冲击性能进行预估和分析.初步指出轴系抗冲击的薄弱环节及轴系在抗冲击设计时需注意的问题.Taking the ship propulsion shafting as research object,the finite element-based modeling method for all parts of shafting are discussed,and the anti-shock model for shafting is built.The effects of five important factors including bearing stiffness,shafting rotate speed,prop thrust,geometry nonlinear and bearing gap on shafting are analyzed respectively,and the useful references are obtained.At the same time,the time-domain method is used to foremast and analyze anti-shock performance for several nonlinear factors.Finally,the weak links and attention-getting aspects of anti-shock defenses are proposed.

关 键 词：船舶推进轴系 冲击性能 轴承刚度 轴承间隙 轴系转速 螺旋桨推力 几何非线性 

分 类 号：U664[交通运输工程—船舶及航道工程] TB535[交通运输工程—船舶与海洋工程]