Rotating Stall Induced Non-Synchronous Blade Vibration Analysis for an Unshrouded Industrial Centrifugal Compressor
Abstract
:1. Introduction
2. Rotating Stall Identification and Resonance Condition for Impeller
2.1. Parameter Characterization of Rotating Stall
2.2. Identification of Stall Induced Impeller Vibration and Resonance
3. Test Facilities and Measurement Procedure
3.1. Centrifugal Compressor Test Rig
3.2. Data Acquisition
3.2.1. Unsteady Static Pressure Measurement
3.2.2. Strain Gauge and Tip Timing Measurement
4. Results and Discussion
4.1. Stall Induced Flow Instability Behavior during Throttling Process
4.2. Rotating Stall Induced Vibration Identification during Speed Ramp
4.3. Stall Parameters Identification Based on Circumferential Pressure Pulsation Signals
4.4. Vibration Quantification Based on Tip Timing Measurement
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Parameters | Value |
---|---|
Number of inlet guide vanes | 11 |
Number of impeller blades | 19 |
Number of diffuser vanes | 20 |
Number of return channel vanes | 18 |
Impeller outlet diameter D2 (mm) | 810 |
Impeller outlet width b2 (mm) | 57.5 |
Diffuser inlet diameter D3 (mm) | 900 |
Diffuser outlet diameter D4 (mm) | 1242 |
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Zhao, X.; Zhou, Q.; Yang, S.; Li, H. Rotating Stall Induced Non-Synchronous Blade Vibration Analysis for an Unshrouded Industrial Centrifugal Compressor. Sensors 2019, 19, 4995. https://doi.org/10.3390/s19224995
Zhao X, Zhou Q, Yang S, Li H. Rotating Stall Induced Non-Synchronous Blade Vibration Analysis for an Unshrouded Industrial Centrifugal Compressor. Sensors. 2019; 19(22):4995. https://doi.org/10.3390/s19224995
Chicago/Turabian StyleZhao, Xinwei, Qiang Zhou, Shuhua Yang, and Hongkun Li. 2019. "Rotating Stall Induced Non-Synchronous Blade Vibration Analysis for an Unshrouded Industrial Centrifugal Compressor" Sensors 19, no. 22: 4995. https://doi.org/10.3390/s19224995