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基于降阶模型的叶片失谐颤振分析
张陈安; 张伟伟; 叶正寅; 王发民
Source Publication高温气体动力学研究进展
2011
Pages371-375
Conference NameLHD2011夏季学术研讨会
Conference Date2011
Conference Place内蒙赤峰
Abstract本文运用气动力降阶技术,构建了包含相位、频率失谐的叶轮机叶片非定常气动力降阶模型。分析了STCF 4 和NASA Rotor 67 在周期性间隔失谐情况下发生相位失谐和频率失谐时气动阻尼曲线的变化。计算结果表明,相位失谐的影响范围非常小,只对失谐叶片相邻的两个叶片发生一定影响,而频率失谐的影响相对于相位失谐来说要更明显。失谐叶片的出现能对叶轮上叶片的气动阻尼产生明显的影响,在安排合理的情况下能有效提高气动阻尼水平,从而提高颤振边界。
Keyword叶轮机械 颤振 失谐 气动阻尼 降阶模型
DepartmentLHD高超声速空气动力学
Language中文
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/47962
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
张陈安,张伟伟,叶正寅,等. 基于降阶模型的叶片失谐颤振分析[C]高温气体动力学研究进展,2011:371-375.
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