艉轴承等效支点位置对轴系回旋振动的影响

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英文篇名：Influence of Equivalent Supporting Point Location in Stern Bearing on Shaft Whirling Vibration 作者：张晓东 英文作者：ZHANG Xiao-dong (Office of Rearch and Development,Naval University of Engineering,Wuhan 430033,China) 关键词：推进轴系 ; 回旋振动 ; 等效支承 ; 艉轴承 英文关键词：propulsion shaft;whirling vibration;equivalent supporting;stern bearing 中文刊名：WHZC 英文刊名：Ship & Ocean Engineering 机构：海军工程大学科研部; 出版日期：2012-12-25 出版单位：船海工程 年：2012 期：v.41;No.211 语种：中文; 页：WHZC201206015 页数：4 CN：06 ISSN：42-1645/U 分类号：53-56

摘要

在轴系回旋振动研究中,将艉轴承支承分为单点支承、多点支承、分布支承及接触支承四种方式,应用有限元方法,针对不同支承分别建立相应的轴系回旋振动模型,求得艉轴承不同支承方式的支反力以及等效支点位置,并进行相应的回旋振动模态分析。计算结果表明,不同支承方式的等效支点位置对轴系回旋振动固有频率有一定影响。
        In the research of whirling vibration,there are four supporting types in stern bearing such as single,multipoint,distribution and contact supporting.Finite element method was used to found relevant shaft whirling vibration model respectively to get the reaction forces and equivalent supporting point locations under different supporting types,analyze whirling vibration modal.The results showed that different supporting type's equivalent supporting point locations has certain effect upon shaft whirling vibration.

引文

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