爆炸荷载下舰船复合材料上层建筑结构动力响应分析  

Dynamic response analysis of ship composite superstructure under explosion load

作　　者：赖震宇[1] LAI Zhen-yu(School of Science and Technology,Nanchang University,Jiujiang 332020,China)

机构地区：[1]南昌大学科学技术学院,江西九江332020

出　　处：《舰船科学技术》2022年第16期20-23,共4页Ship Science and Technology

基　　金：江西省教育厅科学技术研究项目(GJJ191565)。

摘　　要：以某舰船复合材料上层建筑结构为原型,通过有限元仿真软件,建立8个端面的舰船复合材料上层建筑仿真模型,分析爆炸载荷下舰船复合材料上层建筑结构动力响应,8个端面分别是前端、上端1、上端2、上端3、侧端1、侧端2、后端、底端。试验证明:起爆中心与上层建筑结构距离越远,其应力越小,出现变形的可能性越小,爆炸冲击波作用方向的端面应力值最大;不断提升炸药相对基准线角度,上层建筑结构前端、上端1、上端2、侧端2与起爆中心的距离逐渐变远,应力峰值逐渐降低,上端3、侧端1、后端与起爆中心的距离逐渐变近,应力峰值逐渐提升;起爆中心与上层建筑结构距离越近的端面,其速度与加速度峰值越大,随着时间的延长,上层建筑结构的动力响应整体呈衰减趋势。For an active ship superstructure composite structure as the prototype, through the finite element simulation software, establish the upper end of the eight ships composites building simulation model, analysis under explosion loading ship superstructure composite structure dynamic response, eight end face is the front, top 1, top 2 and top 3, side 1, 2, the back-end side, bottom. The test results show that the farther the distance between the detonation center and the superstructure, the smaller the stress, the smaller the possibility of deformation, and the maximum stress value of the end face of the action direction of the explosion shock wave. The distance between the front end, upper end 1, upper end 2 and side end 2 of the superstructure and the initiation center gradually decreases, while the distance between the top end 3, side end 1 and back end and the initiation center gradually becomes closer, and the stress peak gradually increases. The closer the distance between the initiation center and the superstructure, the greater the peak velocity and acceleration. With the extension of time, the dynamic response of the superstructure shows a decreasing trend.

关 键 词：爆炸载荷 舰船复合材料 上层建筑结构 动力响应 有限元 仿真模型 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]