Research on vibration characteristics of motorized spindle at high speed based on power flow
Linkai Wu 1,2
Ye Dai 1,2
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Key Laboratory of Advanced Processing Technology and Intelligent Manufacturing (Heilongjiang Province), Harbin University of Science and Technology, Harbin, China
School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin, China
Submission date: 2023-06-19
Final revision date: 2023-08-15
Acceptance date: 2023-08-28
Online publication date: 2023-12-11
Publication date: 2024-01-31
Corresponding author
Yudong Bao   

Key Laboratory of Advanced Processing Technology and Intelligent Manufacturing (Heilongjiang Province), Harbin University of Science and Technology, 150080, Harbin, China
Journal of Theoretical and Applied Mechanics 2024;62(1):61-73
To show dynamic properties of a motorized spindle at high speed, C01 type motorized spindle bearing-rotor system is used as a study object, and the dynamic model of the bearing-rotor system is established. The method to analyze vibration characteristics of motorized spindles by power flow is proposed, and it is found that the vibration energy is not necessarily considerable at the position where the vibration displacement response is significant. Finally, the system vibration energy distribution under different bearing stiffness is analyzed. The power flow method can analyze the dynamic characteristics of the bearing-rotor system in terms of energy distribution.
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