Abstract
The planetary reducer has both internal incentive of varying mesh stiffness and external incentive of eccentric quality, which are prone to vibration and noise at work. This paper use ANSYS Workbench to build model, divide grid and carry out modal analysis for transmission gear train of Planetary reducer, and calculate the 6 order modes. The modal analysis result is compared with excited frequency and natural frequency respectively. This paper’s modal analysis is more accuracy, more rational and more scientific than the previous experience design and statics analysis. It not only provides the useful date for acoustic analysis of planetary reducer, but also provides theory basis for avoiding planetary reducer resonance, and lays a foundation for the whole system dynamic response calculation and analysis.
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