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轮盘概念设计中拓扑和形状同时优化方法

范俊 尹泽勇 王建军 米栋 闫成

范俊, 尹泽勇, 王建军, 等 . 轮盘概念设计中拓扑和形状同时优化方法[J]. 北京航空航天大学学报, 2015, 41(3): 456-465. doi: 10.13700/j.bh.1001-5965.2014.0232
引用本文: 范俊, 尹泽勇, 王建军, 等 . 轮盘概念设计中拓扑和形状同时优化方法[J]. 北京航空航天大学学报, 2015, 41(3): 456-465. doi: 10.13700/j.bh.1001-5965.2014.0232
FAN Jun, YIN Zeyong, WANG Jianjun, et al. Simultaneous topology and shape optimization method in conceptual design of disk[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(3): 456-465. doi: 10.13700/j.bh.1001-5965.2014.0232(in Chinese)
Citation: FAN Jun, YIN Zeyong, WANG Jianjun, et al. Simultaneous topology and shape optimization method in conceptual design of disk[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(3): 456-465. doi: 10.13700/j.bh.1001-5965.2014.0232(in Chinese)

轮盘概念设计中拓扑和形状同时优化方法

doi: 10.13700/j.bh.1001-5965.2014.0232
基金项目: 国家863计划资助项目(2006AA04Z418)
详细信息
    作者简介:

    范俊(1982―),男,江西丰城人,博士生,fanjun93404@126.com

    通讯作者:

    尹泽勇(1945—),男,重庆人,院士,yinzy@cae.cn,主要研究方向为航空发动机多学科优化设计技术.

  • 中图分类号: V231.91

Simultaneous topology and shape optimization method in conceptual design of disk

  • 摘要: 为了减小人为选择参数对优化结果的影响,针对航空发动机轮盘概念设计阶段的结构优化问题,提出了拓扑和形状同时优化(STSO)法.该方法是在变密度(SIMP)法的基础上,通过分析优化目标和约束的灵敏度,用序列二次规划优化(SQP)法进行求解.接着,以板壳结构为例,对比分析了STSO法和分步优化法的结果,说明了拓扑和形状同时优化方法的优点.最后,将同时优化方法应用于轮盘结构概念设计,对比分析了使用拓扑和形状同时优化方法与单独拓扑优化方法进行轮盘结构优化的结果,探讨了不同振型对应的频率约束对优化结果的影响.结果表明,不同振型对应的频率约束下优化结果的结构形式呈现多样性;相较于单独拓扑优化方法,STSO法收敛速度较快、结果也更精确;但是由于形状优化变量取值范围选取不当,有可能会出现网格畸变过大,而导致STSO法所得的结果无效.

     

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出版历程
  • 收稿日期:  2014-04-29
  • 网络出版日期:  2015-03-20

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