Volume 37 Issue 9
Sep.  2011
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Su Xunwen, Wang Shaoping, Zhu Dongmei, et al. Harmonic analysis and optimized vibration sensor locations of the helicopter intermediate gearbox[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(9): 1049-1053. (in Chinese)
Citation: Su Xunwen, Wang Shaoping, Zhu Dongmei, et al. Harmonic analysis and optimized vibration sensor locations of the helicopter intermediate gearbox[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(9): 1049-1053. (in Chinese)

Harmonic analysis and optimized vibration sensor locations of the helicopter intermediate gearbox

  • Received Date: 27 Apr 2010
  • Publish Date: 30 Sep 2011
  • 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.

     

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