Volume 35 Issue 10
Oct.  2020
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Article Navigation >  Journal of Aerospace Power  > 2020  >  35(10): 2159-2165
LI Bo, ZHANG Heyu, YANG Jun. Effect of different environmental factors on dynamic characteristics of pressure transmission pipe[J]. Journal of Aerospace Power, 2020, 35(10): 2159-2165. doi: 10.13224/j.cnki.jasp.2020.10.016
Citation: LI Bo, ZHANG Heyu, YANG Jun. Effect of different environmental factors on dynamic characteristics of pressure transmission pipe[J]. Journal of Aerospace Power, 2020, 35(10): 2159-2165. doi: 10.13224/j.cnki.jasp.2020.10.016
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Effect of different environmental factors on dynamic characteristics of pressure transmission pipe

doi: 10.13224/j.cnki.jasp.2020.10.016

  • Changcheng Institute of Metrology and Measurement,Aviation Industry Corporation of China Limited,Beijing 100095,China

  • Received Date: 2020-03-25
  • Publish Date: 2020-10-28
    Abstract
  • In order to explore the effect of different factors on the dynamic characteristics of the pressure transmission pipe in the dynamic calibration and operation,the pressure transmission model and the relationship between vibration frequency were deduced. The parameters affecting the dynamic characteristics of the transmission pipe,including static pressure,temperature,gas medium,were established. The experimental verification of different environmental factors was carried out by using special experimental device of the transmission pipe. Results showed that the static pressure only affected the output of the transmission pipe at the resonant frequency,but increased nonlinearly with the increase of the static pressure,and had no significant effect on the dynamic characteristics; with the increase of temperature,the resonant frequency increased but the output amplitude decreased; different gas media would change the dynamic characteristics of the transmission pipe mainly depending on the sound velocity of the medium. This study provides a reference for the data evaluation and correction of the transmission pipe in the use environment.

     

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