Research on structural fatigue residual life of pitch bearing rings after pre-damage
ObjectiveThe corrosion fatigue fracture of the wind turbine pitch bearing is a major failure mode, often leading to the blade detachment and shutdown. To this end, a finite element model of replacing the whole pitch bearing with a local one was proposed to investigate the structural fatigue remainin...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Transmission
2025-01-01
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| Series: | Jixie chuandong |
| Subjects: | |
| Online Access: | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.01.005 |
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| author | ZHANG Mingqian CHEN Guanci DING Yinke LIU Minghan MAO Huaping |
| author_facet | ZHANG Mingqian CHEN Guanci DING Yinke LIU Minghan MAO Huaping |
| author_sort | ZHANG Mingqian |
| collection | DOAJ |
| description | ObjectiveThe corrosion fatigue fracture of the wind turbine pitch bearing is a major failure mode, often leading to the blade detachment and shutdown. To this end, a finite element model of replacing the whole pitch bearing with a local one was proposed to investigate the structural fatigue remaining life of pitch bearings after corrosion of the raceways.MethodsA combined method of finite element software Ansys and three-dimensional fracture mechanics software Franc3D was adopted to simulate the corrosion pit by inserting a pre-damage at the location of the maximum equivalent stress in the bearing ring. The crack propagation path and life of the corroded bearing ring were investigated under actual operating conditions.ResultsThe results show that the remaining fatigue life of the corroded bearing ring under actual operating conditions is 2.2×10<sup>7</sup> cycles, approximately 2.3 years, accounting for 11.6％ of the design life. Through this results, the characteristics of the structural fatigue of the bearing ring affected by the corrosion can be better understood, providing guidance and reference for engineering practices in related fields. |
| format | Article |
| id | doaj-art-44ff8fa864bc43b4b0a2ff54e2d6a665 |
| institution | Kabale University |
| issn | 1004-2539 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Journal of Mechanical Transmission |
| record_format | Article |
| series | Jixie chuandong |
| spelling | doaj-art-44ff8fa864bc43b4b0a2ff54e2d6a6652025-01-25T19:01:09ZzhoEditorial Office of Journal of Mechanical TransmissionJixie chuandong1004-25392025-01-0149374381411126Research on structural fatigue residual life of pitch bearing rings after pre-damageZHANG MingqianCHEN GuanciDING YinkeLIU MinghanMAO HuapingObjectiveThe corrosion fatigue fracture of the wind turbine pitch bearing is a major failure mode, often leading to the blade detachment and shutdown. To this end, a finite element model of replacing the whole pitch bearing with a local one was proposed to investigate the structural fatigue remaining life of pitch bearings after corrosion of the raceways.MethodsA combined method of finite element software Ansys and three-dimensional fracture mechanics software Franc3D was adopted to simulate the corrosion pit by inserting a pre-damage at the location of the maximum equivalent stress in the bearing ring. The crack propagation path and life of the corroded bearing ring were investigated under actual operating conditions.ResultsThe results show that the remaining fatigue life of the corroded bearing ring under actual operating conditions is 2.2×10<sup>7</sup> cycles, approximately 2.3 years, accounting for 11.6％ of the design life. Through this results, the characteristics of the structural fatigue of the bearing ring affected by the corrosion can be better understood, providing guidance and reference for engineering practices in related fields.http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.01.005Pitch bearing ringCorrosionPre-damageRemaining fatigue lifeFranc3D software |
| spellingShingle | ZHANG Mingqian CHEN Guanci DING Yinke LIU Minghan MAO Huaping Research on structural fatigue residual life of pitch bearing rings after pre-damage Jixie chuandong Pitch bearing ring Corrosion Pre-damage Remaining fatigue life Franc3D software |
| title | Research on structural fatigue residual life of pitch bearing rings after pre-damage |
| title_full | Research on structural fatigue residual life of pitch bearing rings after pre-damage |
| title_fullStr | Research on structural fatigue residual life of pitch bearing rings after pre-damage |
| title_full_unstemmed | Research on structural fatigue residual life of pitch bearing rings after pre-damage |
| title_short | Research on structural fatigue residual life of pitch bearing rings after pre-damage |
| title_sort | research on structural fatigue residual life of pitch bearing rings after pre damage |
| topic | Pitch bearing ring Corrosion Pre-damage Remaining fatigue life Franc3D software |
| url | http://www.jxcd.net.cn/thesisDetails#10.16578/j.issn.1004.2539.2025.01.005 |
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