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�������պ����ѧѧ�� 2011, Vol. 37 Issue (9) :1049-1053    DOI:
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��ѫ��1, ����Ƽ1, �춬÷2, ʯ��1*
1. �������պ����ѧ �Զ�����ѧ���������ѧԺ, ���� 100191;
2. �����Ƽ���ѧ ��е����ѧԺ, ���� 100083
Harmonic analysis and optimized vibration sensor locations of the helicopter intermediate gearbox
Su Xunwen1, Wang Shaoping1, Zhu Dongmei2, Shi Jian1*
1. School of Automation Science and Electrical Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;
2. School of Mechanical Engineering, University of Science & Technology Beijing, Beijing 100083, China

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Abstract�� Multi-freedom vibration model has been studied. A methodology of optimized vibration sensor location, in which the amplitude was sensitive to fault frequency, was presented. First, a finite element model of the helicopter intermediate gearbox was constructed, then a signal stimulus was forced to the gearbox of the model by the method of harmonic analysis. The study shows that different locations have clear different amplitudes according to the signal stimulus. So the location, where the amplitude was the largest, should be the best sensor location and a function of optimized sensor locations was presented. This optimized sensor location methodology is also applicable to other parts of the helicopter transmission and other rotating mechanics.
Keywords�� helicopter   vibration measurement   harmonic analysis   sensors   modeling     
Received 2010-04-27;
Fund:

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About author: ��ѫ��(1979-),��,ɽ��������,��ʿ��,suxw0703@gmail.com.
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��ѫ��, ����Ƽ, �춬÷, ʯ��.ֱ�����м�����г��Ӧ�����봫�����Ż�����[J]  �������պ����ѧѧ��, 2011,V37(9): 1049-1053
Su Xunwen, Wang Shaoping, Zhu Dongmei, Shi Jian.Harmonic analysis and optimized vibration sensor locations of the helicopter intermediate gearbox[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2011,V37(9): 1049-1053
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