大开口船弯扭耦合振动分析  

ANALYSIS OF BENDING-TORSION COUPLING VIBRATION OF SHIPS WITH LARGE OPENINGS

作　　者：陈扬[1] 刘勇辉[1] 金咸定[1] 陆鑫森[1] 

机构地区：[1]上海交通大学

出　　处：《中国造船》1989年第4期56-65,共10页Shipbuilding of China

摘　　要：本文探讨了用计及剪切和翘曲影响的薄壁梁有限元方法来计算大开口船弯扭耦合振动的特性,导出了抗扭箱对增加船体扭转附加刚度的计算公式,并作了数值计算和实验研究。按本文方法编制的计算程序,除能进行弯扭耦合振动分析外,还能计算垂向或水平扳动以及扭转振动。In this paper, the FEM of thin-walled beam method taking the effects of shear and warping into account, is applied for computation of bending-torsion coupling vibration characteristics of ships with large openings. The contribution of anti-torsion box towards the torsion rigidity is deduced.The sectional factor at the region where the sudden change of cross section area occurs is discussed. Numerical computation and experimental research Were carried out The programe developed based on the method can also be effectively used for other types of ship vibration.

关 键 词：弯扭耦合振动 抗扭箱 多用途货船 有限元方法 振形 薄壁梁 水平弯曲振动 计算公式 惯性矩 计算程序 

分 类 号：U671[交通运输工程—船舶及航道工程]