摘要
本文将群论算法和动态子结构技术结合起来，并采用计算效率极高的Ｂｅｎｆｉｅｌｄ－Ｈｒｕｄａ的模态代入变换法，分析了某型发动机压气机的叶片／轮盘耦合系统的振动特性，计算了该叶片／轮盘耦合系统的前５阶振动频率和振型．根据叶片／轮盘耦合系统的共振条件进行共振分析，确定该发动机压气机有可能发生叶片／轮盘耦合共振．
The computational method of group theory combined with dynamic substructure tech-nique and efficient Benfield-Hruda' s substructure method are employed in this paper to ana-lyze dynamic properties of disc-blade coupling system of a certain aeroengine compressor. The first five vibrational modes and modal shapes of the disc-blade coupling system is calcu-lated. According to the resonant condition of disc-blade system. it is identified that disc-blade coupling resonance probably happen.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1994年第2期169-173,共5页
Journal of Beijing University of Aeronautics and Astronautics
关键词
涡轮风扇
叶片
振动
涡扇发动机
turbofans
blades
disks
vibration analysis method
substructure methods
blade-disc coupling system
