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Qiang Zhang, Rong He, Yudong Zhang, Jin Xu. Analysis of the Relationship Between the Meshing Stiffness and the Inherent Characteristics of Planetary Gear Transmission Mechanism[J]. JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2019, 28(4): 811-818. doi: 10.15918/j.jbit1004-0579.18157
Citation: Qiang Zhang, Rong He, Yudong Zhang, Jin Xu. Analysis of the Relationship Between the Meshing Stiffness and the Inherent Characteristics of Planetary Gear Transmission Mechanism[J].JOURNAL OF BEIJING INSTITUTE OF TECHNOLOGY, 2019, 28(4): 811-818.doi:10.15918/j.jbit1004-0579.18157

Analysis of the Relationship Between the Meshing Stiffness and the Inherent Characteristics of Planetary Gear Transmission Mechanism

doi:10.15918/j.jbit1004-0579.18157
  • Received Date:2018-08-26
  • According to the relationship between the meshing stiffness and the inherent characteristics of a seven-speed three-row coupled planetary transmission mechanism, a equivalent concentrated mass dynamics model of the planetary transmission mechanism is established. The natural frequency of the planetary gear train at a specific gear is calculated and extracted. The relationship between the meshing stiffness of each row and the natural frequency of the system is analyzed, thereby avoiding possible resonance behavior by changing the meshing stiffness. These results show that the meshing stiffness, in its range of possible values, has nearly no effect on the low order natural frequency (<4.000.Hz), and that the time-varying meshing stiffness mainly affects the natural frequencies of the higher- and middle-order parts of the system. Changes of the natural frequencies lead to the change of the system's corresponding vibration mode, which will change the vibration situation of the system.
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