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基于缺陷敏感性分析的加筋圆柱壳结构设计
  • ISSN号：1000-4939
  • 期刊名称：应用力学学报
  • 时间：2013.6.6
  • 页码：344-350
  • 分类：V214[航空宇航科学与技术—航空宇航推进理论与工程;航空宇航科学技术]
  • 作者机构：[1]大连理工大学工程力学系工业装备结构分析国家重点实验室,116023, [2]北京宇航系统工程研究所,北京100076
  • 相关基金：国家自然科学基金（91216201;11128205）; 973项目（2011CB610304）; 中央高校基本科研业务费专项资金（DUT 11 ZD（G）04）
  • 相关项目：基于顺从性原理的高效预折薄壁吸能构件设计
作者： 郝鹏|王博|李刚|杜凯繁|曾杜娟|张希|
关键词： 加筋圆柱壳, 屈曲, 临界荷载, 缺陷敏感性, 结构设计, stiffened shell, buckling, collapse load, imperfection sensitivity, structural design.
中文摘要：

为了对加筋圆柱壳进行面向低缺陷敏感度的结构设计,针对一个直径为3m的正置正交加筋圆柱壳,基于显式后屈曲数值分析,研究了预制不同幅度的内凹、外凸双曲母线形状设计的加筋圆柱壳轴压临界荷载对初始模态缺陷的敏感性。结果表明：外凸双曲母线形状可在幅度为20mm时提高含缺陷结构的轴压临界荷载,可达6.6%,表现为对缺陷的低敏感性;内凹双曲母线则可在幅度为-10mm时小幅提高完善结构的轴压临界荷载,可达1.7%;当加筋圆柱壳应用于运载火箭的燃料贮箱时,燃料加注会升高贮箱内压,因此可通过内压控制形成外凸形状来降低结构的缺陷敏感性。

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基于顺从性原理的高效预折薄壁吸能构件设计
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期刊信息
  • 《应用力学学报》
  • 北大核心期刊（2011版）
  • 主管单位:国家教育部
  • 主办单位:西安交通大学
  • 主编：陈宜亨
  • 地址：西安市咸宁西路28号西安交通大学
  • 邮编：710049
  • 邮箱：cjam@mail.xjtu.edu.cn
  • 电话：029-82668756
  • 国际标准刊号：ISSN：1000-4939
  • 国内统一刊号：ISSN：61-1112/O3
  • 邮发代号:
  • 获奖情况:
  • 国际工程索引（EI）及我国力学类核心期刊
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  • 被引量:8573