Effect of Different Workscope Strategies on Wind Turbine Gearbox Life Cycle Repair Costs
The wind turbine industry is beginning to establish orthodoxies governing the repair of gearboxes, including policies governing the replacement of bearings during gearbox heavy maintenance events. Some maintainers recommend replacing all of the bearings, every time, regardless of condition or age. A...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
The Prognostics and Health Management Society
2013-01-01
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| Series: | International Journal of Prognostics and Health Management |
| Subjects: | |
| Online Access: | http://www.phmsociety.org/sites/phmsociety.org/files/phm_submission/2013/ijphm_13_017.pdf |
| _version_ | 1818657366110896128 |
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| author | D. Crowley A. Lesmerises |
| author_facet | D. Crowley A. Lesmerises |
| author_sort | D. Crowley |
| collection | DOAJ |
| description | The wind turbine industry is beginning to establish orthodoxies governing the repair of gearboxes, including policies governing the replacement of bearings during gearbox heavy maintenance events. Some maintainers recommend replacing all of the bearings, every time, regardless of condition or age. At the same time, others prefer to only replace the failed bearing. The former rationale achieves availability by spending more money than absolutely necessary; the latter sacrifices reliability in exchange for a lower shop visit cost. Even though neither approach results in the lowest Life Cycle Cost, no standard practice has yet been implemented to methodically determine what would be the best approach. Furthermore, as gearboxes approach the end of their planned service lives, a different strategy may be called-for. This paper presents an example of using a reliability-based statistical analysis to determine which strategy will yield the lowest Life Cycle Cost for wind turbine gearboxes. |
| first_indexed | 2024-12-17T03:40:20Z |
| format | Article |
| id | doaj.art-bbf2f3340b064606bbc35164b4de03fe |
| institution | Directory Open Access Journal |
| issn | 2153-2648 |
| language | English |
| last_indexed | 2024-12-17T03:40:20Z |
| publishDate | 2013-01-01 |
| publisher | The Prognostics and Health Management Society |
| record_format | Article |
| series | International Journal of Prognostics and Health Management |
| spelling | doaj.art-bbf2f3340b064606bbc35164b4de03fe2022-12-21T22:05:02ZengThe Prognostics and Health Management SocietyInternational Journal of Prognostics and Health Management2153-26482013-01-014Sp2154160Effect of Different Workscope Strategies on Wind Turbine Gearbox Life Cycle Repair CostsD. CrowleyA. LesmerisesThe wind turbine industry is beginning to establish orthodoxies governing the repair of gearboxes, including policies governing the replacement of bearings during gearbox heavy maintenance events. Some maintainers recommend replacing all of the bearings, every time, regardless of condition or age. At the same time, others prefer to only replace the failed bearing. The former rationale achieves availability by spending more money than absolutely necessary; the latter sacrifices reliability in exchange for a lower shop visit cost. Even though neither approach results in the lowest Life Cycle Cost, no standard practice has yet been implemented to methodically determine what would be the best approach. Furthermore, as gearboxes approach the end of their planned service lives, a different strategy may be called-for. This paper presents an example of using a reliability-based statistical analysis to determine which strategy will yield the lowest Life Cycle Cost for wind turbine gearboxes.http://www.phmsociety.org/sites/phmsociety.org/files/phm_submission/2013/ijphm_13_017.pdfworkscopelife cycle costmaintenanceoptimization |
| spellingShingle | D. Crowley A. Lesmerises Effect of Different Workscope Strategies on Wind Turbine Gearbox Life Cycle Repair Costs International Journal of Prognostics and Health Management workscope life cycle cost maintenance optimization |
| title | Effect of Different Workscope Strategies on Wind Turbine Gearbox Life Cycle Repair Costs |
| title_full | Effect of Different Workscope Strategies on Wind Turbine Gearbox Life Cycle Repair Costs |
| title_fullStr | Effect of Different Workscope Strategies on Wind Turbine Gearbox Life Cycle Repair Costs |
| title_full_unstemmed | Effect of Different Workscope Strategies on Wind Turbine Gearbox Life Cycle Repair Costs |
| title_short | Effect of Different Workscope Strategies on Wind Turbine Gearbox Life Cycle Repair Costs |
| title_sort | effect of different workscope strategies on wind turbine gearbox life cycle repair costs |
| topic | workscope life cycle cost maintenance optimization |
| url | http://www.phmsociety.org/sites/phmsociety.org/files/phm_submission/2013/ijphm_13_017.pdf |
| work_keys_str_mv | AT dcrowley effectofdifferentworkscopestrategiesonwindturbinegearboxlifecyclerepaircosts AT alesmerises effectofdifferentworkscopestrategiesonwindturbinegearboxlifecyclerepaircosts |