船体结构在预载荷作用下的瞬态响应分析  

Transient Response Analysis of Ship Structures under Preload

作　　者：闫晋辉[1] 任鸿[1] 王琳[1] YAN Jin-hui;REN Hong;WANG Lin(Marine Design&Research Institute of China,Shanghai 200011,China)

机构地区：[1]中国船舶及海洋工程设计研究院

出　　处：《船海工程》2019年第6期16-19,共4页Ship & Ocean Engineering

摘　　要：以MSC.PATRAN/NASTRAN为平台,根据某舰船船体的主要参数、垂直发射系统基座布置以及结构形式建立船体和基座结构有限元模型,选用预应力-动力分析求解方法进行预载荷作用下的瞬态响应计算,着重分析垂发装置基座结构及附近主要船体结构的应力分布,分析基座结构的动力放大效应。推荐导弹发射等引起的冲击荷载的时程曲线类型及持续时间。The finite element model of ship and foundation structures was established with MSC. PATRAN/NASTRAN according to the main parameters of ship hull, foundation layout of vertical launching system and detailed ship structures. The prestress-dynamic analysis method was used to analyze the transient response under preload. The stress distribution of foundation of vertical launching system and hull structures was emphatically analyzed. The dynamic amplification effect on the foundation structures was also researched. The time history curve and duration time of impact load caused by missile launching are recommended.

关 键 词：惯性载荷 预载荷 瞬态分析 动力放大系数 

分 类 号：U663.7[交通运输工程—船舶及航道工程]