桅杆振动计算边界条件研究  

Research on Boundary Conditions of Mast Vibration Calculation

作　　者：肖亮[1] 夏利娟[1] 金咸定[1] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200030

出　　处：《船舶工程》2005年第4期45-48,共4页Ship Engineering

摘　　要：文章通过对多种边界条件的模型进行振动模态计算,探讨了影响桅杆一阶振动频率的因素,并且通过增加弹簧支撑来代替桅杆底部和侧面的支撑船体结构,结果令人满意.同时探讨了一种更加简化的桅杆模型来进行振动模态计算,使计算量大大减少,方便了桅杆设计.The vibration calculation for mast is with different boundary conditions are made in very important for warship. Normal mode moaels this paper, and some factors that affect the first frequency are discussed in the paper. The normal modes of the models, which boundary condition is replaced by spring sustain, are satisfied. What＇s more, a more predigested model, which reduces much computing work and makes design more convenience, used to normal mode analysis.

关 键 词：船舶 桅杆 振动 边界条件 刚度 

分 类 号：U667.1[交通运输工程—船舶及航道工程]