某单级压气机试验件叶顶碰摩特性研究  

ANALYSIS OF BLADE RUB-IMPACT CHARACTERISTICS IN A SINGLE STAGE COMPRESSOR TEST RIG

作　　者：王永亮[1] 钟兢军[1] 崔颖[1] 陆华伟[1] 

机构地区：[1]大连海事大学轮机工程学院,大连116026

出　　处：《动力学与控制学报》2016年第4期343-347,共5页Journal of Dynamics and Control

基　　金：国家自然科学基金资助项目(51606023;51436002);辽宁省自然科学基金项目(2015020130);中央高校基本科研业务费专项资金资助(3132015026;3132014319)~~

摘　　要：对某型压气机单级试验件气动性能试验中轴系振动特性进行了监测与分析,结果表明,背压变化会导致动叶叶顶与机匣发生碰摩现象,引发轴系低频高幅冲击振动,并给出了引发该型压气机叶顶碰摩的主要因素,以及避免碰摩引起高幅振动的主要改进措施,为轴流压气机级气动特性试验的安全运行提供参考.The vibration characteristics of a single stage compressor test rig were studied and analyzed through aerodynamic characteristics testing. The results shown that the change of back pressure led to the rub-impact between blade and casing,and the low frequency and high amplitude vibration also occurred. Moreover,the main factors of blade rub-impact were investigated,and some improvements were given to avoid the blade rub-impact.The results in this paper provide the reference to the safe operation of axial flow compressor test in investigating the aerodynamic characteristics.

关 键 词：压气机 试验 叶顶碰摩 非定常气流力 

分 类 号：TK473[动力工程及工程热物理—动力机械及工程]