抗冲瓦结构在脉冲载荷下的动态响应分析与优化  

Dynamic response and optimization of anti-shock chiral layer under impulse loading

作　　者：陈嘉伟[1,2] 张辉[2] 侯小军[2] 倪其军[2] CHEN Jiawei;ZHANG Hui;HOU Xiaojun;NI Qijun(School of Transportation,Wuhan University of Technology,Wuhan 430063,China;China Ship Scientific Research Center,Wuxi 214082,China)

机构地区：[1]武汉理工大学交通学院,武汉430063 [2]中国船舶科学研究中心,无锡214082

出　　处：《江苏科技大学学报（自然科学版）》2018年第5期617-622,共6页Journal of Jiangsu University of Science and Technology:Natural Science Edition

基　　金：国家重点研发计划基金资助项目(2016YFC0301000)

摘　　要：为提高抗冲瓦结构的抗冲击性能,基于有限元分析软件Abaqus研究了抗冲瓦结构在不同峰值脉冲载荷下的响应,重点分析了抗冲瓦结构的变形模式、加速度峰值响应与其芯层结构尺寸间的关系,应用多学科优化软件Modelcenter对其结构尺寸进行优化.结果表明:受到冲击后,抗冲瓦结构在冲击端和固定端会出现局部压缩大变形,其变形模式与脉冲载荷峰值有很大关系,芯层胞元的几何尺寸与抗冲瓦结构的抗冲击性能有很大关系,应用遗传算法可以较好地实现结构在动态载荷下的优化.The dynamic response of anti-shock chiral layer under different peak impulse loading was analysed based on Abaqus,the emphasis being placed on the relationship among the dynamic deformation of anti-shock chiral layer,acceleration peak of steel center and structure geometry size.The muti discipline software Modelcenter was applied to optimization of the geometry of anti-shock chiral so as to improve the shock resistance.Results show the impact and fixed section would exhibit large compress deformation,an optimal design of the structure geometry having an important effect on the structure′s shock resistance was achieved by GA.

关 键 词：抗冲瓦 手征结构 动态响应 优化分析 

分 类 号：U674.7[交通运输工程—船舶及航道工程]