An Online Fatigue Damage Evaluation Method for Gas Turbine Hot Components
The failure of gas turbines’ hot components due to fatigue significantly affects their efficient and stable operation. Conducting online damage assessment of components subjected to complex cyclic loads based on the working conditions of gas turbines can provide real-time reflection of component fat...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-09-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/19/6785 |
| _version_ | 1797575933180248064 |
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| author | Hongxin Zhu Shun Dai Xiaoyi Zhang Jian Chen Mingyu Luo Weiguang Huang |
| author_facet | Hongxin Zhu Shun Dai Xiaoyi Zhang Jian Chen Mingyu Luo Weiguang Huang |
| author_sort | Hongxin Zhu |
| collection | DOAJ |
| description | The failure of gas turbines’ hot components due to fatigue significantly affects their efficient and stable operation. Conducting online damage assessment of components subjected to complex cyclic loads based on the working conditions of gas turbines can provide real-time reflection of component fatigue damage and achieve the purpose of predictive maintenance. In this study, we propose an online cycle counting method that considers temperature fluctuations during the cycle process. Our method is based on the four-point online rainflow counting method by coupling the counting variable with time, introducing the concept of the duration time for full cycles and half cycles, and incorporating a characteristic temperature that better represents the temperature information during the cycle process. With reference to the characteristic temperature, our proposed method comprehensively considers the form and parameters of subsequent life assessment models. This paper provides a detailed explanation of the proposed method and applies it to the fatigue damage assessment of turbine vanes in a micro gas turbine, thereby verifying its accuracy and applicability. |
| first_indexed | 2024-03-10T21:45:20Z |
| format | Article |
| id | doaj.art-075d9818e29246b29d9f63717332a01c |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T21:45:20Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-075d9818e29246b29d9f63717332a01c2023-11-19T14:18:51ZengMDPI AGEnergies1996-10732023-09-011619678510.3390/en16196785An Online Fatigue Damage Evaluation Method for Gas Turbine Hot ComponentsHongxin Zhu0Shun Dai1Xiaoyi Zhang2Jian Chen3Mingyu Luo4Weiguang Huang5Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaThe failure of gas turbines’ hot components due to fatigue significantly affects their efficient and stable operation. Conducting online damage assessment of components subjected to complex cyclic loads based on the working conditions of gas turbines can provide real-time reflection of component fatigue damage and achieve the purpose of predictive maintenance. In this study, we propose an online cycle counting method that considers temperature fluctuations during the cycle process. Our method is based on the four-point online rainflow counting method by coupling the counting variable with time, introducing the concept of the duration time for full cycles and half cycles, and incorporating a characteristic temperature that better represents the temperature information during the cycle process. With reference to the characteristic temperature, our proposed method comprehensively considers the form and parameters of subsequent life assessment models. This paper provides a detailed explanation of the proposed method and applies it to the fatigue damage assessment of turbine vanes in a micro gas turbine, thereby verifying its accuracy and applicability.https://www.mdpi.com/1996-1073/16/19/6785fatigue damage assessmentonline cycle counting methodtemperature fluctuationscharacteristic temperature |
| spellingShingle | Hongxin Zhu Shun Dai Xiaoyi Zhang Jian Chen Mingyu Luo Weiguang Huang An Online Fatigue Damage Evaluation Method for Gas Turbine Hot Components Energies fatigue damage assessment online cycle counting method temperature fluctuations characteristic temperature |
| title | An Online Fatigue Damage Evaluation Method for Gas Turbine Hot Components |
| title_full | An Online Fatigue Damage Evaluation Method for Gas Turbine Hot Components |
| title_fullStr | An Online Fatigue Damage Evaluation Method for Gas Turbine Hot Components |
| title_full_unstemmed | An Online Fatigue Damage Evaluation Method for Gas Turbine Hot Components |
| title_short | An Online Fatigue Damage Evaluation Method for Gas Turbine Hot Components |
| title_sort | online fatigue damage evaluation method for gas turbine hot components |
| topic | fatigue damage assessment online cycle counting method temperature fluctuations characteristic temperature |
| url | https://www.mdpi.com/1996-1073/16/19/6785 |
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