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�������պ����ѧѧ�� 2004, Vol. 30 Issue (09) :808-812    DOI:
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1. �������պ����ѧ ��Դ�붯������ѧԺ, ���� 100083;
2. ���Ϻ��е�רҵѧУ, �Ϻ� 200232
Model analysis of bladed disk coupled system of compressor with low aspect ratio
Zhang Dayi1, Shi Yajie1, Lin Li2, Hong Jie1*
1. School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;
2. CAAC Shanghai Vocational School, Shanghai 200232, China

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Abstract�� 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.
Keywords�� blade vibration   impellers   coupled resonance   low aspect ratio   finite element methods     
Received 2003-06-02;
About author: �Ŵ���(1979-),��,����������,��ʿ��, chinadayi@peoplemail.com.cn.
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�Ŵ���, ʷ�ǽ�, ����, ���.������ҶƬ����Ƭ����������о�[J]  �������պ����ѧѧ��, 2004,V30(09): 808-812
Zhang Dayi, Shi Yajie, Lin Li, Hong Jie.Model analysis of bladed disk coupled system of compressor with low aspect ratio[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2004,V30(09): 808-812
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