某压气机叶片强度、振动特性及颤振分析  

Analysis on Strength,Vibration Characteristics and Flutter of Blades in a Compressor

作　　者：马义良[1] 潘劭平 郭魁俊 梁天赋 关淳 MA Yiliang;PAN Shaoping;GUO Kuijun;LIANG Tianfu;GUAN Chun(Harbin Turbine Co.,Ltd.,Harbin 150046,China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《热力透平》2023年第3期216-221,共6页Thermal Turbine

摘　　要：基于有限元方法对某轴流压气机叶片进行了数值分析,采用流固耦合方法计算了叶片的气动压力载荷和气流激振力,确保了叶片强度与振动分析结果的精确性。采用能量法研究了叶片在一个振动周期内结构与流场之间的气弹稳定性,分析了叶片在不同运行工况下的颤振风险。本次分析综合评估了叶片的运行安全性,可为后续叶片的安全运行提供重要的依据。Based on finite element method,numerical analysis was carried out on the blades in an axial compressor.The fluid structure coupling method was used to calculate the aerodynamic pressure load and the air flow exciting force of the blades,therefore,the accuracy of the analysis results of the blade strength and vibration could be ensured.The energy method was used to analyze the aero-elastic stability between structure and flow field of the blades in a vibration cycle,and the flutter risk of blades in different operation conditions was assessed.This analysis gives a comprehensive evaluation on the operation safety of the blades,and can provide important reference for the subsequent operation of blades.

关 键 词：压气机叶片 静强度 动频率 动应力 颤振 

分 类 号：TK02[动力工程及工程热物理]