基于能量法判据的压气机叶片颤振风险分析  

Compressor Blade Flutter Risk Analysis Based on Energy Method Criterion

作　　者：马义良[1] 程学亮 李宇峰[1] 赵洪羽 MA Yiliang;CHENG Xueliang;LI Yufeng;ZHAO Hongyu(Harbin Turbine Company Limited,Harbin Heilongjiang,150046)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,黑龙江哈尔滨150046

出　　处：《东方汽轮机》2023年第2期14-17,34,共5页Dongfang Turbine

摘　　要：叶片颤振属于气动弹性稳定性问题,是压气机叶片在设计过程的必要环节,文章以某轴流压气机叶片为分析对象,采用能量法判据进行了叶片瞬态气动分析,得到在一个振动周期内气流对叶片所做的功,根据气流对叶片做功的正负,判断叶片的颤振风险,为压气机叶片的安全运行提供了重要理论依据.Blade flutter is a problem of aeroelastic stability,which is an essential part in the design process of compressor blades.In this paper,an axial flow compressor blade is taken as the analysis object,and the transient aerodynamic analysis of the blade is car-ried out with the criterion of energy method.The work done by the airflow on the blade in a vibration cycle is obtained,and the flutter risk of the blade is determined according to the positive or negative work done by the airflow on the blade,which provides an important theoretical basis for the safe operation of compressor blades.

关 键 词：压气机 动叶片 颤振 能量法判据 

分 类 号：TK474[动力工程及工程热物理—动力机械及工程]