新型桁架箱体浮筏结构重量优化研究  

Research on weight optimization of a new truss box floating raft structure

作　　者：王壮[1] 朱显明[1] 杨睿 李晓彬[2] WANG Zhuang;ZHU Xian-ming;YANG Rui;LI Xiao-bin(China Ship Development and Design Center,National key Laboratory on Ship Vibration and Noise,Wuhan 430063,China;Wuhan University of Technology,School of Transportation,Wuhan 430063,China)

机构地区：[1]中国舰船研究设计中心船舶振动噪声重点实验室,湖北武汉430063 [2]武汉理工大学交通学院,湖北武汉430063

出　　处：《舰船科学技术》2021年第3期40-43,共4页Ship Science and Technology

摘　　要：结合桁架结构的优点,将桁架结构应用于传统浮筏形成一种新型桁架箱体浮筏结构,并对其重量进行优化。首先在有限元软件Abaqus中建立了桁架箱体浮筏模型,然后基于模态分析,重力场分析和抗冲击分析,以筏架上、下面板厚度为设计变量,分析了面板厚度变化对结构刚度及强度水平的影响,且在保证足够刚度和强度水平的前提下,浮筏减重可达15.4%。本文的研究可为新型桁架箱体浮筏的结构轻量化设计奠定基础。Combining the advantages of the truss structure, the truss structure is applied to the traditional floating raft to form a new type of truss box floating raft structure, and its weight is optimized. Firstly, establishing a truss box floating raft model through the finite element software ABAQUS, then based on the modal analysis, gravity field analysis and impact analysis. Taking the thickness of the upper and lower decks of the raft as design variables, the influence of the thickness of decks on the structural stiffness and strength level is analyzed. Under the premise of ensuring sufficient rigidity and strength level, the weight loss of the floating raft can reach 15.4%. The research in this paper can construct the foundation for the structural lightweight design of the new truss box floating raft.

关 键 词：桁架箱体浮筏 模态分析 抗冲击分析 有限元法 重量优化 

分 类 号：TB535[理学—物理]