A reduced order model for coupled mode cascade flutter analysis
A reduced order model for coupled mode cascade flutter analysis作者机构:School of Power and EnergyNorthwestern Polytechnical UniversityXi'an 710072China Yangtze River Delta Research Institute of Northwestern Polytechnical UniversityTaicang 215400China Department of Aeronautics and AstronauticsFudan UniversityShanghai 200433China
出 版 物:《Chinese Journal of Aeronautics》 (中国航空学报(英文版))
年 卷 期:2022年第35卷第10期
页 面:176-182页
核心收录:
学科分类:082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术]
基 金:supported by the National Science and Technology Major Project, China (No. 2017-II-0009-0023) the Aeronautical Science Foundation of China(No. 2020Z039053004) the Fundamental Research Funds for the Central Universities, China (No. 3102019OQD701)
主 题:Aerodynamic influence coefficients Chirp signal Coupled mode flutter Eigenvalue problem Reduced order model
摘 要:A Reduced Order Model(ROM)based analysis method for turbomachinery cascade coupled mode flutter is presented in this *** unsteady aerodynamic model is established by a system identification technique combined with a set of Aerodynamic Influence Coefficients(AIC).Subsequently,the aerodynamic model is encoded into the state space and then coupled with the structural dynamic equations,resulting in a ROM of the cascade *** cascade flutter can be determined by solving the eigenvalues of the ***-torsional coupled mode flutter analysis for the Standard Configuration Eleven(SC11)cascade is used to validate the proposed method.