Volume 30 Issue 12
Dec.  2015
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WANG Yong-liang, SUN Li-quan, CUI Ying, HAN Yu. Dynamics similarity criteria of rotor dynamic with gyroscopic effect[J]. Journal of Aerospace Power, 2015, 30(12): 2840-2847. doi: 10.13224/j.cnki.jasp.2015.12.004
Citation: WANG Yong-liang, SUN Li-quan, CUI Ying, HAN Yu. Dynamics similarity criteria of rotor dynamic with gyroscopic effect[J]. Journal of Aerospace Power, 2015, 30(12): 2840-2847. doi: 10.13224/j.cnki.jasp.2015.12.004
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Dynamics similarity criteria of rotor dynamic with gyroscopic effect

doi: 10.13224/j.cnki.jasp.2015.12.004

  • 1. Marine Engineering College, Dalian Maritime University, Dalian 116026, China;

  • 2. Harbin Turbine Company Limited, Harbin Electric Corporation, Harbin 150046, China

  • Received Date: 2015-02-03
  • Publish Date: 2015-12-28
    Abstract
  • In order to study the dynamics similarily of actual rotor system with gyroscopic effect similar to the corresponding scaled model, the dynamic similarity criteria for rotor-support system considering gyroscopic moment were derived by using dimensional analysis method, and the similarity ratios of physical variables of actual rotor system and model were obtained. And the correctness of dynamics similarity criteria of rotor system with gyroscopic effect was verified by solving the analytical solution of critical speed for a Jeffcott rotor system at different similarity ratios, and by studying the similarity of critical speeds and modes for an actual rotor system based on the finite element simulation software ANSYS. It shows that the natural frequency of actual rotor system is similar to its scaled model in similarity speed, and the critical speed is similar for rotor system considering gyroscopic moment, simple support and Rayleigh proportional damping.

     

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