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基于高拟真度模型的高超声速飞行器静气动弹性优化

粟华 谷良贤 龚春林

粟华, 谷良贤, 龚春林. 基于高拟真度模型的高超声速飞行器静气动弹性优化[J]. 航空动力学报, 2013, 28(8): 1836-1842.
引用本文: 粟华, 谷良贤, 龚春林. 基于高拟真度模型的高超声速飞行器静气动弹性优化[J]. 航空动力学报, 2013, 28(8): 1836-1842.
SU Hua, GU Liang-xian, GONG Chun-lin. Static aeroelastic optimization of hypersonic aircraft based on high-fidelity model[J]. Journal of Aerospace Power, 2013, 28(8): 1836-1842.
Citation: SU Hua, GU Liang-xian, GONG Chun-lin. Static aeroelastic optimization of hypersonic aircraft based on high-fidelity model[J]. Journal of Aerospace Power, 2013, 28(8): 1836-1842.

基于高拟真度模型的高超声速飞行器静气动弹性优化

Static aeroelastic optimization of hypersonic aircraft based on high-fidelity model

  • 摘要: 为解决基于计算流体动力学(CFD)和计算结构动力学(CSD)高拟真度模型的静气动弹性优化过程中模型更新自动化困难、求解速度慢的难点,提出了基于几何主模型技术的CFD/CSD一体化参数化建模方法和基于网格单元修正的常体积四面体(CVT)数据交换技术,并引入响应面模型来降低气动弹性优化求解难度.通过AGARD 445.6机翼静气动弹性分析对上述方法的可行性和有效性进行了验证;并以某高超声速飞行器为例,采用基于二次响应面的多目标优化算法进行了CFD/CSD气动弹性分析与优化,优化后飞行器升阻比增加16%,结构质量减少9%,且响应面模型精度拟合误差不超过1.5%.计算结果表明:所发展的CFD/CSD一体化参数化建模与优化方法能够有效地解决高拟真度模型的静气动弹性优化问题.

     

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出版历程
  • 收稿日期:  2012-09-24
  • 刊出日期:  2013-08-28

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