Abstract
The traditional dynamic analysis of the finite element structure is mostly focused on the mode analysis. In the paper, the finite element method is combined with the power flow analysis to analyze and optimize the vibration transmission characteristics of the shared bearing bore, so that the vibration energy transmitted to the mounting flange is minimized. The analysis shows that the elastic ring and the outer case play an important role in vibration transmission and reduction. An optimization model is established to improve the vibration reduction rate of the shared bearing bore. The results show that the optimization can effectively improve the vibration reduction rate of the shared bearing bore, approximately 15 % reduction of peak response is achieved.
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