广东电力2016，Vol.29Issue(5)：1-5,19,6.DOI:10.3969/j.issn.1007-290X.2016.05.001
基于流固耦合的燃机压气机叶片结构动力学分析
Structural Dynamics Analysis on Gas Turbine Compressor Blade Based on Fluid-solid Coupling
摘要
Abstract
Fluid-solid coupling method is used for numerical simulating calculation on aeroelasticity of rotor blades of some compressor,and result of steady-state computation and experimental result are compared to verify veracity of this computa-tion method. By means of one-way fluid-solid coupling calculation,this paper carries out structural dynamics analysis on blades which is to transfer aerodynamic load obtained from unsteady computation to the form of load pressure field for struc-tural dynamics analysis. It analyzes transient response of blades under aerodynamic force and conducts modal analysis as well. Results indicate that blades may bear larger amplitude of alternating stress under aerodynamic force and be easy to pro-duce high-cycle fatigue. In addition,larger dynamic stress is produced and the maximum stress occurs at the leading edge of blade root. Analysis on modal shape of each order and locations of dangerous points may provide basis for design and analysis on fatigue of blades as well as strengthen operational security and reliability of blades.关键词
流固耦合/气动力/瞬态响应/模态分析/高周疲劳Key words
fluid-solid coupling/aerodynamic force/transient response/modal analysis/high-cycle fatigue分类
航空航天引用本文复制引用
史久志,覃海起,尹洪,邓小文,吕玉坤..基于流固耦合的燃机压气机叶片结构动力学分析[J].广东电力,2016,29(5):1-5,19,6.基金项目
中国博士后科学基金面上资助项目(2015M570696) （2015M570696）
中国南方电网有限责任公司科技项目(GDKJ00000005) （GDKJ00000005）
