Vibration Source Signal Separation of Rotating Machinery Equipment and Robot Bearings Based on Low Rank Constraint
Abstract
:1. Introduction
2. Theory and Model
2.1. Low Rank of Vibration Source Signals
2.2. The Separation Model Based on Low-Rank Constraints
2.3. The Separate Model of Multiple Low-Rank Constraints
3. The Separation Method Based on Multi-Low-Rank Constrained
4. Simulation Analysis
5. Experimental Analysis
5.1. Experimental Verification
5.2. Comparative Analysis
- (1)
- The time-domain waveforms
- (2)
- Envelope spectrum
- (3)
- The signal-to-signal ratio (SSR)
- (4)
- The fault classification
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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Parameter | Value | Parameter | Value |
---|---|---|---|
1.5 V | 1 V | ||
1200 | 800 | ||
1/79.2 s | 1/138.9 s | ||
2800 Hz | 24 kHz | ||
fo | 79.2 Hz | fi | 138.9 Hz |
Parameter Name | Value |
---|---|
Type | 6000 |
Number of Rolling Elements | 7 |
Contact Angle | 0° |
Pitch Diameter D/mm | 17.65 |
Ball Diameter d/mm | 4.8 |
Characteristic Frequency of Outer Ring Fault fo/Hz | 2.548fr |
Characteristic Frequency of eccentric Fault fe/Hz | 1fr |
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He, Z.; Cheng, W.; Xia, J.; Wen, W.; Li, M. Vibration Source Signal Separation of Rotating Machinery Equipment and Robot Bearings Based on Low Rank Constraint. Appl. Sci. 2021, 11, 5250. https://0-doi-org.brum.beds.ac.uk/10.3390/app11115250
He Z, Cheng W, Xia J, Wen W, Li M. Vibration Source Signal Separation of Rotating Machinery Equipment and Robot Bearings Based on Low Rank Constraint. Applied Sciences. 2021; 11(11):5250. https://0-doi-org.brum.beds.ac.uk/10.3390/app11115250
Chicago/Turabian StyleHe, Zhiyang, Weidong Cheng, Jiqiang Xia, Weigang Wen, and Meng Li. 2021. "Vibration Source Signal Separation of Rotating Machinery Equipment and Robot Bearings Based on Low Rank Constraint" Applied Sciences 11, no. 11: 5250. https://0-doi-org.brum.beds.ac.uk/10.3390/app11115250