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基于高阶矩的稳健优化设计研究

宋述芳 吕震宙

宋述芳, 吕震宙. 基于高阶矩的稳健优化设计研究[J]. 力学学报, 2012, (4): 735-744. doi: 10.6052/0459-1879-11-256
引用本文: 宋述芳, 吕震宙. 基于高阶矩的稳健优化设计研究[J]. 力学学报, 2012, (4): 735-744. doi: 10.6052/0459-1879-11-256
Song Shufang, Lü Zhenzhou. THE ROBUST OPTIMIZATION DESIGN BASED ON MOMENT ESTIMATION METHOD[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, (4): 735-744. doi: 10.6052/0459-1879-11-256
Citation: Song Shufang, Lü Zhenzhou. THE ROBUST OPTIMIZATION DESIGN BASED ON MOMENT ESTIMATION METHOD[J]. Chinese Journal of Theoretical and Applied Mechanics, 2012, (4): 735-744. doi: 10.6052/0459-1879-11-256

基于高阶矩的稳健优化设计研究

doi: 10.6052/0459-1879-11-256
基金项目: 国家自然科学基金(NSFC51175425);航空科学基金(2011ZA53015);航天科技创新基金(2011200093);西北工业大学基础研究基金(JC20100201)和陕西省基础研究基金(2012JQ1015)资助项目.
详细信息
  • 中图分类号: TB114.3

THE ROBUST OPTIMIZATION DESIGN BASED ON MOMENT ESTIMATION METHOD

Funds: The project was supported by the National Natural Science Foundation of China (NSFC51175425); Aviation Science Foundation (2011ZA53015); the Aerospace Science and Technology Innovative Foundation (2011200093); the Basic Research Fund of North- western Polytechnical University (JC20100201) and the Nature Science Basic Research Fund of Shanxi Province (2012JQ1015).
  • 摘要: 采用随机响应量的前四阶统计矩来度量目标函数和概率约束条件的稳健性, 通过引入“权重因子”来确定新构造的目标函数中原 函数和敏感系数的比重, 利用加权组合法将稳健优化设计这一多目标优化问题转化为单目标问题, 从而建立新的基于高阶矩的稳健优化设计数学模型. 矩估计方法可高效地评估目标函数和概率约束条件的统计矩, 且不需要搜索技术, 因此不构成嵌套循环(即稳健优化过程是单循环的), 从而可以大大降低优化的计算工作量. 对多个桁架结构进行了确定性优化设计、可靠性优化设计、传统的和该文所提的稳健优化设计, 验证了所建立的基于高阶矩的稳健优化设计数学模型的合理性和正确性, 比较并解释了计算所得的优化结果.

     

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出版历程
  • 收稿日期:  2011-09-13
  • 修回日期:  2012-04-13
  • 刊出日期:  2012-07-18

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