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为了能够准确识别压气机旋转失速过程中失速团的数目,将压气机旋转失速过程中脉动压力波动的相位和幅值特征绘制在极坐标中,然后根据其在极坐标图中表现出来的特征来确定失速团的数目.经过与传统方法对比说明该分析方法对于失速团数目的确定优于原有的方法,具有抗噪性和一定的精度.另外,使用该方法可以可视化周向失速分布区域,并能可视化压气机失速先兆的发生和发展.
In order to accurately identify the number of stall groups during the stalling of the compressor, the phase and amplitude characteristics of the pulsating pressure fluctuations during the stalling of the compressor are plotted in the polar coordinates. Based on their characteristics in the polar plot Determine the number of stall groups.Compared with the traditional methods, this method shows that this method is superior to the original method in determining the number of stall groups, and has anti-noise and certain accuracy.In addition, this method can be used to visualize the circumferential stall distribution area, And can visualize the occurrence and development of compressor stall aura.