亚声速轴流压气机失速监测方法试验  

Experiment of the Algorithm of Detecting the Stall Inception for the Subsonic Compressor

作　　者：高曼[1] 楚武利[1] 吴艳辉[1] 张皓光[1] 李清鹏[1] 

机构地区：[1]西北工业大学动力与能源学院,陕西西安710072

出　　处：《推进技术》2012年第3期398-404,共7页Journal of Propulsion Technology

基　　金：国家自然科学基金(51006084);陕西省自然科学基金(2011JQ7018)

摘　　要：为了研究轴流压气机失速先兆信号监测的有效算法,对亚声速轴流压气机试验台的孤立转子在不同转速下,从稳定工况到失速工况叶顶不同轴向位置进行了动态压力信号测量试验,采用自相关分析和方差分析算法对试验数据进行了对比分析。结果表明,该压气机为突尖型失速,在叶顶前缘附近能明显感受到失速先兆信号,自相关分析监测到失速先兆信号的时间明显早于方差分析,可更有效的达到失速预警的作用。To study an effective algorithm of detecting the stall inception signal for the axial compressor,the subsonic axial-flow isolated rotor was gradually pushed to stall at the different rotor speed to measure dynamic pressure signal at the different axial position of blade tips.Then the test data with the autocorrelation analysis and the variance analysis was studied.Test data presented show that the compressor stall is caused by the spike and the stall inception signal can be detected obviously near the rotor leading edge.Finally,the reaction time of autocorrelation analysis is longer than that of the variance analysis for the compressor.Thus,autocorrelation analysis is more effective to detect the stall inception.

关 键 词：轴流压气机 突尖型失速 自相关分析 方差分析 失速预警 

分 类 号：V235.12[航空宇航科学与技术—航空宇航推进理论与工程]