A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing
During the working process of the turbine, some types of faults can cause changes in the vibration characteristics of the blades. The real-time vibration monitoring of the blades is of great significance to the stable operation and state-based maintenance. Torsional vibration is a kind of blade vibr...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/9950269 |
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| _version_ | 1849306013870587904 |
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| author | Haonan Guo Yongmin Yang Fengjiao Guan Haifeng Hu Guoji Shen Suiyu Chen Zifang Bian |
| author_facet | Haonan Guo Yongmin Yang Fengjiao Guan Haifeng Hu Guoji Shen Suiyu Chen Zifang Bian |
| author_sort | Haonan Guo |
| collection | DOAJ |
| description | During the working process of the turbine, some types of faults can cause changes in the vibration characteristics of the blades. The real-time vibration monitoring of the blades is of great significance to the stable operation and state-based maintenance. Torsional vibration is a kind of blade vibration modes and results in failures such as cracks easily. Thus, it is important to measure it due to the harmfulness of torsional vibration. Firstly, the principle of blade tip timing (BTT) is introduced, and the models of the blade are built to analyze the characteristics of torsional vibration. Then, the compressed sensing theory is introduced, and its related parameters are determined according to the measurement requirements. Next, based on the condition that the blade rigidity axis is not bent and bent, respectively, the layout method of sensors is proposed and the numerical simulation of the measurement process is performed. The results of the above two types of numerical simulation verify the proposed measurement method. Finally, by analyzing the influencing factors of measurement uncertainty, the optimization method of sensors’ layout is further proposed. This study can provide important theoretical guidance for the measurement of blade torsional vibration. |
| format | Article |
| id | doaj-art-30eeff386eed4a089c92805baf2c08e6 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-30eeff386eed4a089c92805baf2c08e62025-08-20T03:55:12ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/99502699950269A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip TimingHaonan Guo0Yongmin Yang1Fengjiao Guan2Haifeng Hu3Guoji Shen4Suiyu Chen5Zifang Bian6Laboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, ChinaLaboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, ChinaLaboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, ChinaLaboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, ChinaLaboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, ChinaLaboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, ChinaLaboratory of Science and Technology on Integrated Logistics Support, College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, ChinaDuring the working process of the turbine, some types of faults can cause changes in the vibration characteristics of the blades. The real-time vibration monitoring of the blades is of great significance to the stable operation and state-based maintenance. Torsional vibration is a kind of blade vibration modes and results in failures such as cracks easily. Thus, it is important to measure it due to the harmfulness of torsional vibration. Firstly, the principle of blade tip timing (BTT) is introduced, and the models of the blade are built to analyze the characteristics of torsional vibration. Then, the compressed sensing theory is introduced, and its related parameters are determined according to the measurement requirements. Next, based on the condition that the blade rigidity axis is not bent and bent, respectively, the layout method of sensors is proposed and the numerical simulation of the measurement process is performed. The results of the above two types of numerical simulation verify the proposed measurement method. Finally, by analyzing the influencing factors of measurement uncertainty, the optimization method of sensors’ layout is further proposed. This study can provide important theoretical guidance for the measurement of blade torsional vibration.http://dx.doi.org/10.1155/2021/9950269 |
| spellingShingle | Haonan Guo Yongmin Yang Fengjiao Guan Haifeng Hu Guoji Shen Suiyu Chen Zifang Bian A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing Shock and Vibration |
| title | A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing |
| title_full | A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing |
| title_fullStr | A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing |
| title_full_unstemmed | A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing |
| title_short | A Torsional Vibration Measurement Method for Rotating Blades Based on Blade Tip Timing |
| title_sort | torsional vibration measurement method for rotating blades based on blade tip timing |
| url | http://dx.doi.org/10.1155/2021/9950269 |
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