To study the blade vibration in coupled impellers system, a finite element model in the base sector for a coupled impellers system with low aspect ratio in a compressor was created. A vibration analysis for the coupled system by wave transmittal technique was processed, thus computed the coupled vibration that may occur during operation. The special vibration mode of blades with low aspect ration was figured and the relation between frequency of vibration and rotate speed was developed. The special modes of vibration in the impellers system with low aspect ratio and the relation between frequency of vibration and node lines were pointed out.
������,�ﰮ÷��Ҷ/�̽ṹ�����м��������̽��[J]���ƽ�����,2002,23(3):233~236 Wang Yanrong, Tian Aimei. Several issues in the imple mentation of vibration analysis of bladed disk[J]. Journal of Propulsion Technology, 2002, 23(3):233~236(in Chinese)
�ܴ���,����,��ѩ��,�ȣ�ȼ���ֻ�ҶƬ���������ϵͳ�����Լ���[J]��ȼ�������������о�,2000,13(2):36~39 Zhou Chuanyue, Zou Jingxiang, Wen Xueyou, et al. Modal analysis of disc-blade coupling system of a gas turbo engine[J]. Journal of Gas Turbines Tests and Research, 2000,13(2):36~39(in Chinese)
�����ã��ṹϵͳ�������Է���[M]������:�������պ����ѧ������,1989.32 Yan Litang. Modal analysis of structure system[M]. Beijing:Beijing University of Aeronautics and Astronautics Press, 1989.32(in Chinese)
Hou J F. Blade bibrations coupled with disks . AIAA/ASME/ASCE/AHS Structures, Structural Dynamics, and Materials Conference . Denver, Colorado, 2002