基于谐响应分析的燃机压气机动叶片尾流激振响应预估方法  

Estimated Method of Gas Turbine Compressor Dynamic Blade Wake Flow Vibration Response Based on Harmonic Response Analysis

作　　者：杨博宇 张玲 文丰艾 文丰茜 Yang Boyu;Zhang Ling;Wen Feng'ai;Wen Fengqian(不详)

机构地区：[1]东方电气集团东方汽轮机有限公司产品研发中心,四川618000 [2]二重(德阳)重型装备有限公司,四川618000 [3]中国科学院光电技术研究所,四川610000 [4]西南技术物理研究院,四川610000

出　　处：《中国重型装备》2021年第1期33-36,51,共5页CHINA HEAVY EQUIPMENT

摘　　要：燃机轴流式压气机均匀静叶栅尾流使本级动叶片产生周期激振,而周期激振是导致动叶片疲劳破坏的主要因素,造成压气机故障。通过对压气机的尾流激振产生的响应进行分析,将载荷周期延拓、傅氏级数拟合以及分布载荷压力转化为集中力的方法,推导出该响应的求解方法。此方法有一定的预估效果。Wake flow of gas turbine axial flow compressor uniform static cascade caused periodic vibration of the dynamic blade at the same level,while periodic vibration was the main factor of dynamic blade fatigue failure to result in compressor failure.By analyzing response from compressor wake flow vibration,and applying methods of loading periodic extension,Fourier series fitting and turning distribution loading pressure into concentrated load,solution of the response has been concluded with estimated effects.

关 键 词：燃气轮机 压气机叶片 均匀静叶栅 尾流 谐响应分析 

分 类 号：TH113.1[机械工程—机械设计及理论]