船舶柴油机曲轴的模态分析  

Modal analysis of marine diesel engine crankshaft

作　　者：朱发新[1] 林少芬[1] 陈跃坡[1] 

机构地区：[1]集美大学轮机工程学院,厦门361021

出　　处：《船舶工程》2008年第1期23-25,共3页Ship Engineering

摘　　要：通过建立船舶柴油机曲轴的三维几何模型,结合ANSYS软件对曲轴的细节特征和约束进行简化.采用Lanczos法进行自由模态分析,获得曲轴前5阶固有频率和振型向量,并求得曲轴振动中的危险区域.In the paper, the 3-D model of engine crankshaft is built, and the detailed features and constraints on the crankshaft are simplified by using ANSYS software. The Lanczos method is used m the modal analysis in order to obtain natural frequencies and vibration-mode vectors of the first 5 orders, and dangerous areas is located in the vibration of crankshaft.

关 键 词：船舶动力装置 船用柴油机 船舶轴系 曲轴 固有频率 模态分析 

分 类 号：U664.21[交通运输工程—船舶及航道工程]