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旋转畸变对模态波发展过程影响试验

严伟 胡骏 杨帆 王志强 尹超

严伟, 胡骏, 杨帆, 王志强, 尹超. 旋转畸变对模态波发展过程影响试验[J]. 航空动力学报, 2014, (10): 2443-2449. doi: 10.13224/j.cnki.jasp.2014.10.022
引用本文: 严伟, 胡骏, 杨帆, 王志强, 尹超. 旋转畸变对模态波发展过程影响试验[J]. 航空动力学报, 2014, (10): 2443-2449. doi: 10.13224/j.cnki.jasp.2014.10.022
YAN Wei, HU Jun, YANG Fan, WANG Zhi-qiang, YIN Chao. Effect experiment of rotating distortion on the development of modal wave[J]. Journal of Aerospace Power, 2014, (10): 2443-2449. doi: 10.13224/j.cnki.jasp.2014.10.022
Citation: YAN Wei, HU Jun, YANG Fan, WANG Zhi-qiang, YIN Chao. Effect experiment of rotating distortion on the development of modal wave[J]. Journal of Aerospace Power, 2014, (10): 2443-2449. doi: 10.13224/j.cnki.jasp.2014.10.022

旋转畸变对模态波发展过程影响试验

doi: 10.13224/j.cnki.jasp.2014.10.022
基金项目: 

高等学校博士学科点专项科研基金(20123218120009)

详细信息
    作者简介:

    严伟(1986- ),男,河北石家庄人,博士生,主要从事叶轮机气动力学方向的研究.

  • 中图分类号: V231.3

Effect experiment of rotating distortion on the development of modal wave

  • 摘要: 为探究“危险频率”的物理机制,设计了旋转畸变发生器,对旋转畸变条件下两级低速轴流压气机的失速起始过程进行了试验研究.结果表明:该旋转畸变发生器在不同转速下均能输出类方波状的总压分布.旋转畸变导致压气机总静压升特性下降和稳定裕度损失,并且存在使压气机稳定裕度损失最大的畸变旋转频率.失速起始过程中模态波产生于畸变区,传播到非畸变区时会受到抑制.当畸变旋转频率等于模态波的传播频率时,模态波发展为旋转失速所需的时间最短,压气机稳定裕度损失最大.对失速起始信号的时频分析显示“危险频率”在数值上等于模态波的传播频率.

     

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出版历程
  • 收稿日期:  2013-06-15
  • 刊出日期:  2014-10-28

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