摘要
针对某型发动机压气机转子叶片叶尖裂纹故障,制订了4种排故方案。进行了振动特性、应力分布测量及台架动频动应力测量对比试验,对各排故方案作出了评价,从而确定了最终的排故方案。试验表明4种排故方案均能有效降低振动应力,但方案4优于其它3种方案,能使振动应力水平降低60.6%,频率提高11.5%。
Four troubleshooting concepts were recede for an aeroengine compressor rotor blode tip crock failure. The comparative experiments of ribation characteristic, stres distribution measurements and measurements of dynamic frequency and dynamie stress for bench were conducted. The various troubleshooting concepts were evaluated. The experimental results show that for troubleshooting concepts can reduce the ribration stress effectively but the fourth concept is prior to the others which can reduce the vibration stress level by 60.6%, and improve the frequeney by 11.5%.
出处
《航空发动机》
2009年第3期47-49,共3页
Aeroengine
关键词
压气机转子叶片
裂纹故障
排故方案
削角
航空发动机
振动应力
试验
compressor rotor blade
crack failure
trouble shootig Ioncept chamfer
aeroengine
vibration stress
experiment
作者简介
黄爱萍（1966-）,女，高级工程师，主要从事航空发动机测试工作。
