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基于径向基函数响应面的机翼有限元模型修正

秦玉灵 孔宪仁 罗文波

秦玉灵, 孔宪仁, 罗文波等 . 基于径向基函数响应面的机翼有限元模型修正[J]. 北京航空航天大学学报, 2011, 37(11): 1465-1470.
引用本文: 秦玉灵, 孔宪仁, 罗文波等 . 基于径向基函数响应面的机翼有限元模型修正[J]. 北京航空航天大学学报, 2011, 37(11): 1465-1470.
Qin Yuling, Kong Xianren, Luo Wenboet al. Finite element model updating of airplane wing based on Gaussian radial basis function response surface[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(11): 1465-1470. (in Chinese)
Citation: Qin Yuling, Kong Xianren, Luo Wenboet al. Finite element model updating of airplane wing based on Gaussian radial basis function response surface[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(11): 1465-1470. (in Chinese)

基于径向基函数响应面的机翼有限元模型修正

基金项目: 长江学者创新团队发展计划资助项目(IRT0520)
详细信息
    作者简介:

    秦玉灵(1982-),女,石家庄人, 博士生,erica2004ren@163.com.

  • 中图分类号: V 414.19

Finite element model updating of airplane wing based on Gaussian radial basis function response surface

  • 摘要: 用ANSYS三维实体单元SOLID45建立机翼基准有限元模型并计算其自由振动的前6阶模态频率.用均匀设计方法将结构参数分组并分别计算各组结构参数对应的模态频率,建立高斯径向基函数响应面模型.用最小二乘法则拟合系数并检验响应面拟合精度,对基准模型的结构参数施加摄动量建立待修正有限元模型.用响应面模型和基准模型计算所得模态频率的相对误差建立适应度函数的表达式,将混沌搜索机制引入粒子群算法对结构参数的摄动量进行寻优计算,搜索所得优化解代入即得修正后模型,将修正后模型与基准模型在测试频段内段外的模态频率近似度进行比较,证实了修正后模型的有效性.

     

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出版历程
  • 收稿日期:  2010-07-14
  • 网络出版日期:  2011-11-30

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