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基于灵敏度分析的结构-声学鲁棒优化设计

王冲 邱志平 王晓军 吴迪

王冲, 邱志平, 王晓军, 等 . 基于灵敏度分析的结构-声学鲁棒优化设计[J]. 北京航空航天大学学报, 2014, 40(4): 512-516. doi: 10.13700/j.bh.1001-5965.2013.0328
引用本文: 王冲, 邱志平, 王晓军, 等 . 基于灵敏度分析的结构-声学鲁棒优化设计[J]. 北京航空航天大学学报, 2014, 40(4): 512-516. doi: 10.13700/j.bh.1001-5965.2013.0328
Wang Chong, Qiu Zhiping, Wang Xiaojun, et al. Robust optimization of coupled structural-acoustic systems based on sensitivity analysis[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(4): 512-516. doi: 10.13700/j.bh.1001-5965.2013.0328(in Chinese)
Citation: Wang Chong, Qiu Zhiping, Wang Xiaojun, et al. Robust optimization of coupled structural-acoustic systems based on sensitivity analysis[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(4): 512-516. doi: 10.13700/j.bh.1001-5965.2013.0328(in Chinese)

基于灵敏度分析的结构-声学鲁棒优化设计

doi: 10.13700/j.bh.1001-5965.2013.0328
基金项目: 

国防基础科研计划资助项目(A2120110001,B2120110011);高等学校学科创新引智计划资助项目(B07009);国家自然科学基金资助项目(11002013)

详细信息
    作者简介:

    王 冲(1987- ),男,河北沧州人,博士生,2002wangc@sohu.com.

  • 中图分类号: O328;O422.6

Robust optimization of coupled structural-acoustic systems based on sensitivity analysis

  • 摘要: 针对工程中普遍存在的结构-声场耦合系统,充分考虑系统本身及外载荷的不确定性,提出了求解系统响应范围的区间有限元分析方法及鲁棒优化设计模型.从耦合系统的平衡方程出发,利用中心差分方法得到了系统响应的灵敏度计算公式.引入区间变量来表征信息不足的不确定参数,借助一阶泰勒展式,可以快速估算系统响应的区间上下界.在结构鲁棒优化设计过程中,通过引入灵敏度指标,将原不确定单目标优化问题转化为确定的多目标优化问题.为保证结构性能更加稳定,利用区间可能度刻画约束条件的鲁棒性.数值算例通过某弹舱模型弹性板厚度的优化设计,验证了所建立的鲁棒优化模型及算法的有效性.

     

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出版历程
  • 收稿日期:  2013-06-07
  • 刊出日期:  2014-04-20

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