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Dynamic Optimization of Ship Grillages based on Grillage Dynamic Stiffness Algorithm and Scheme Database
Pages: 668-683
Year: Issue:  6
Journal: Journal of Ship Mechanics

Keyword:  ship grillagedynamic optimizationdynamic stiffnessdiscrete scheme database;
Abstract: 文章提出了一种基于动力刚度法和离散方案库的船舶板架结构动力优化设计方法.首先把船舶板架结构分解成由多个离散梁组成的组合结构,使用动力刚度法来分析计算带有机械隔振装置的船舶板架结构的固有频率和动力响应;应用等效静力算法计算结构在动载荷下的应力分布.与传统有限元方法相比较,文中分析方法具有计算精度好、运算速度快的优点.针对船舶板架结构的特点,结构动力优化设计选取纵桁和横向构件剖面惯性矩作为设计变量以减...
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