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基于径向基函数插值的气动弹性计算方法

DOI: 10.13700/j.bh.1001-5965.2013.0460, PP. 953-958

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Abstract:

动网格与界面数据传递方法是气动弹性计算的主要关键技术.将径向基函数(RBF,RadialBasisFunction)插值引入气动弹性计算,介绍了径向基函数的概念并给出其应用于动网格及界面数据传递的基本方法.对AGARD445.6机翼颤振问题进行了计算流体动力学(CFD,ComputationalFluidDynamics)/计算结构动力学(CSD,ComputationalStructureDynamics)耦合计算,在不同的来流速度条件下得到了振动收敛、等幅谐振及振动发散的现象,临界颤振速度及颤振频率与实验数据符合良好,验证了径向基函数插值方法用于气动弹性计算的有效性.

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