Design and Evaluation of Integral Damping Bearing for Vibration Suppression in Multi-Disk Rotor Systems
Abstract
:1. Introduction
2. Materials and Methods
2.1. Integral Damping Bearing
2.2. Analysis of Dynamic Characteristics of Integral Damping Bearing
2.3. Simulation Model of Rotor System
2.4. Test Rig of Multi-Disk Rotor System
3. Results
3.1. Influence of IDB on Bending Stress Distribution and Strain Energy of Rotor System
3.2. Influence of IDB on Rotor System Stability
3.3. Experimental Study on Suppressing Vibration of Rotor System
3.4. Performance of Vibration Reduction of IDB Under Different Working Conditions
4. Conclusions
- (1)
- The simulation analysis showed that the first-order mode deformation of the rotor can be significantly improved by the IDB. It can obviously reduce the maximum bending stress and strain energy of the shaft. The bending stress was reduced from 45 MPa (with traditional ball bearings) to 8.63 MPa (with IDBs). By using the IDB, the strain energy borne by the shaft and bearing was only 10.44%. Simultaneously, the IDB markedly boosted the logarithmic decrement of the rotor system, thereby enhancing system stability to accommodate various working conditions.
- (2)
- In experimental studies on vibration reduction in the multi-disk rotor system, it was discovered that the introduction of an IDB significantly reduced unbalanced vibration. The peak amplitude of the rotor system with the IDB was reduced by 19.94%, and the amplitude at the 1X frequency was reduced by 32.73% compared with ball bearings.
- (3)
- The experimental results indicate that unbalanced vibration can be successfully mitigated by IDBs. IDBs can improve the unbalanced failure of the rotor system to various degrees and effectively reduce the sensitivity of unbalanced mass. Across a series of unbalance values and a wide range of rotational speeds, the IDB has stable vibration reduction performance.
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Structural Parameters | Value | Structural Parameters | Value |
---|---|---|---|
Outer diameter of ID | 174 mm | Thickness of S-shaped elastomer | 1.0 mm |
Inner diameter of ID | 90 mm | Height of S-shaped elastomer | 14.6 mm |
Axial thickness of ID | 40 mm | Radial position of S-shaped elastomer | 57.2 mm |
Oil film clearance | 0.5 mm | Distribution angle of S-shaped elastomer | 48° |
Parameter | Ball Bearing | IDB |
---|---|---|
Stiffness coefficient (N/m) | 2.78 × 108 | 2.84 × 106 |
Damping coefficient (N·s/m) | - | 9.70 × 104 |
Unbalance (kg∙cm) | Amplitudes at 1X Frequency (μm) | Reduction (%) | |
---|---|---|---|
Ball Bearing | IDB | ||
0.16 | 19.40 | 13.68 | 29.48 |
0.24 | 21.42 | 14.84 | 30.72 |
0.35 | 22.85 | 15.67 | 31.42 |
0.48 | 25.74 | 17.32 | 32.71 |
0.60 | 27.30 | 18.12 | 33.63 |
0.73 | 29.71 | 19.23 | 35.27 |
Rotational Speed (rpm) | Amplitudes at 1X Frequency (μm) | Reduction (%) | |
---|---|---|---|
Ball Bearing | IDB | ||
600 | 18.27 | 13.09 | 28.35 |
720 | 19.71 | 13.75 | 30.24 |
840 | 21.79 | 14.86 | 31.80 |
960 | 23.51 | 15.92 | 32.28 |
1200 | 29.71 | 19.23 | 35.27 |
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Yan, W.; Wu, B.; Pan, J.; Ye, D.; Fuyang, C. Design and Evaluation of Integral Damping Bearing for Vibration Suppression in Multi-Disk Rotor Systems. Machines 2024, 12, 883. https://doi.org/10.3390/machines12120883
Yan W, Wu B, Pan J, Ye D, Fuyang C. Design and Evaluation of Integral Damping Bearing for Vibration Suppression in Multi-Disk Rotor Systems. Machines. 2024; 12(12):883. https://doi.org/10.3390/machines12120883
Chicago/Turabian StyleYan, Wei, Bowen Wu, Jiabao Pan, Dongdong Ye, and Chengming Fuyang. 2024. "Design and Evaluation of Integral Damping Bearing for Vibration Suppression in Multi-Disk Rotor Systems" Machines 12, no. 12: 883. https://doi.org/10.3390/machines12120883
APA StyleYan, W., Wu, B., Pan, J., Ye, D., & Fuyang, C. (2024). Design and Evaluation of Integral Damping Bearing for Vibration Suppression in Multi-Disk Rotor Systems. Machines, 12(12), 883. https://doi.org/10.3390/machines12120883