Failure analysis of hydraulic turbine shaft
► Failure analysis of a 28 MW hydraulic turbine shaft. ► Lack of corrosion protection lead to corrosion fatigue failure of turbine shaft. ► Corrosion fatigue cracks due to river water leakage through the sealing box. ► High stresses during start/stop cycles in the critical radius for “wet” environme...
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| Veröffentlicht in: | Engineering failure analysis 2012-03, Vol.20, p.54-66 |
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| container_title | Engineering failure analysis |
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| creator | Momčilović, Dejan Odanović, Zoran Mitrović, Radivoje Atanasovska, Ivana Vuherer, Tomaž |
| description | ► Failure analysis of a 28
MW hydraulic turbine shaft. ► Lack of corrosion protection lead to corrosion fatigue failure of turbine shaft. ► Corrosion fatigue cracks due to river water leakage through the sealing box. ► High stresses during start/stop cycles in the critical radius for “wet” environment.
This paper describes the analysis of major failure of 28
MW horizontal hydro turbine shaft. The analysis of load carrying capacity of critical radius and fractography analysis are presented. Special emphasize is on metallurgical failure analysis of in-service crack initiation. The analysis of stresses is obtained by the finite element method and the developed model and load conditions are described. Finite element analysis is performed for case of normal service and start-up regime.
Based on the failure analysis and numerical calculations, it could be concluded that the seal box design led to constant flow of river water in zone of critical radius which resulted as occurrence of corrosion fatigue cracks and major failure of turbine shaft. Suggestions for problem solution for the turbine shaft are also presented. |
| doi_str_mv | 10.1016/j.engfailanal.2011.10.006 |
| format | Article |
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MW hydraulic turbine shaft. ► Lack of corrosion protection lead to corrosion fatigue failure of turbine shaft. ► Corrosion fatigue cracks due to river water leakage through the sealing box. ► High stresses during start/stop cycles in the critical radius for “wet” environment.
This paper describes the analysis of major failure of 28
MW horizontal hydro turbine shaft. The analysis of load carrying capacity of critical radius and fractography analysis are presented. Special emphasize is on metallurgical failure analysis of in-service crack initiation. The analysis of stresses is obtained by the finite element method and the developed model and load conditions are described. Finite element analysis is performed for case of normal service and start-up regime.
Based on the failure analysis and numerical calculations, it could be concluded that the seal box design led to constant flow of river water in zone of critical radius which resulted as occurrence of corrosion fatigue cracks and major failure of turbine shaft. Suggestions for problem solution for the turbine shaft are also presented.</description><identifier>ISSN: 1350-6307</identifier><identifier>EISSN: 1873-1961</identifier><identifier>DOI: 10.1016/j.engfailanal.2011.10.006</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Corrosion fatigue ; Cracks ; Failure analysis ; Fatigue failure ; Finite element method ; Fracture mechanics ; Freshwater ; Hydraulic turbines ; Marine ; Mathematical analysis ; Mathematical models ; Shafts ; Turbines</subject><ispartof>Engineering failure analysis, 2012-03, Vol.20, p.54-66</ispartof><rights>2011 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c386t-c38dac9ebbeeaad217d6cd2be0c4ecd201bb2eed3d600fa102f3b886b9dba1803</citedby><cites>FETCH-LOGICAL-c386t-c38dac9ebbeeaad217d6cd2be0c4ecd201bb2eed3d600fa102f3b886b9dba1803</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.engfailanal.2011.10.006$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27922,27923,45993</link.rule.ids></links><search><creatorcontrib>Momčilović, Dejan</creatorcontrib><creatorcontrib>Odanović, Zoran</creatorcontrib><creatorcontrib>Mitrović, Radivoje</creatorcontrib><creatorcontrib>Atanasovska, Ivana</creatorcontrib><creatorcontrib>Vuherer, Tomaž</creatorcontrib><title>Failure analysis of hydraulic turbine shaft</title><title>Engineering failure analysis</title><description>► Failure analysis of a 28
MW hydraulic turbine shaft. ► Lack of corrosion protection lead to corrosion fatigue failure of turbine shaft. ► Corrosion fatigue cracks due to river water leakage through the sealing box. ► High stresses during start/stop cycles in the critical radius for “wet” environment.
This paper describes the analysis of major failure of 28
MW horizontal hydro turbine shaft. The analysis of load carrying capacity of critical radius and fractography analysis are presented. Special emphasize is on metallurgical failure analysis of in-service crack initiation. The analysis of stresses is obtained by the finite element method and the developed model and load conditions are described. Finite element analysis is performed for case of normal service and start-up regime.
Based on the failure analysis and numerical calculations, it could be concluded that the seal box design led to constant flow of river water in zone of critical radius which resulted as occurrence of corrosion fatigue cracks and major failure of turbine shaft. Suggestions for problem solution for the turbine shaft are also presented.</description><subject>Corrosion fatigue</subject><subject>Cracks</subject><subject>Failure analysis</subject><subject>Fatigue failure</subject><subject>Finite element method</subject><subject>Fracture mechanics</subject><subject>Freshwater</subject><subject>Hydraulic turbines</subject><subject>Marine</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Shafts</subject><subject>Turbines</subject><issn>1350-6307</issn><issn>1873-1961</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqNUE1Lw0AQXUTBWv0P8aQgjTO77SY5SrEqFLzoedmPid2SJnU3Efrv3VAPnsTLzGPmvQfvMXaNkCOgvN_m1H7U2je61U3OATHdcwB5wiZYFmKGlcTThMUCZlJAcc4uYtwCQMErnLC7VdIOgbJRf4g-Zl2dbQ4u6KHxNuuHYHxLWdzour9kZ7VuIl397Cl7Xz2-LZ9n69enl-XDemZFKftxOm0rMoZIa8excNI6bgjsnBIANIYTOeEkQK0ReC1MWUpTOaOxBDFlN0fffeg-B4q92vloqUkZqRuiqhZzKWQ5F4l5-ycTC8mRF5VcJGp1pNrQxRioVvvgdzocFIIaq1Rb9atKNVY5vlKVSbs8aiml_vIUVLSeWkvOB7K9cp3_h8s3qu-DTg</recordid><startdate>20120301</startdate><enddate>20120301</enddate><creator>Momčilović, Dejan</creator><creator>Odanović, Zoran</creator><creator>Mitrović, Radivoje</creator><creator>Atanasovska, Ivana</creator><creator>Vuherer, Tomaž</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SE</scope><scope>7SR</scope><scope>7SU</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>H8D</scope><scope>JG9</scope><scope>KR7</scope><scope>L7M</scope><scope>7QH</scope><scope>7UA</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope></search><sort><creationdate>20120301</creationdate><title>Failure analysis of hydraulic turbine shaft</title><author>Momčilović, Dejan ; Odanović, Zoran ; Mitrović, Radivoje ; Atanasovska, Ivana ; Vuherer, Tomaž</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c386t-c38dac9ebbeeaad217d6cd2be0c4ecd201bb2eed3d600fa102f3b886b9dba1803</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Corrosion fatigue</topic><topic>Cracks</topic><topic>Failure analysis</topic><topic>Fatigue failure</topic><topic>Finite element method</topic><topic>Fracture mechanics</topic><topic>Freshwater</topic><topic>Hydraulic turbines</topic><topic>Marine</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Shafts</topic><topic>Turbines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Momčilović, Dejan</creatorcontrib><creatorcontrib>Odanović, Zoran</creatorcontrib><creatorcontrib>Mitrović, Radivoje</creatorcontrib><creatorcontrib>Atanasovska, Ivana</creatorcontrib><creatorcontrib>Vuherer, Tomaž</creatorcontrib><collection>CrossRef</collection><collection>Corrosion Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Aqualine</collection><collection>Water Resources Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Engineering failure analysis</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Momčilović, Dejan</au><au>Odanović, Zoran</au><au>Mitrović, Radivoje</au><au>Atanasovska, Ivana</au><au>Vuherer, Tomaž</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Failure analysis of hydraulic turbine shaft</atitle><jtitle>Engineering failure analysis</jtitle><date>2012-03-01</date><risdate>2012</risdate><volume>20</volume><spage>54</spage><epage>66</epage><pages>54-66</pages><issn>1350-6307</issn><eissn>1873-1961</eissn><abstract>► Failure analysis of a 28
MW hydraulic turbine shaft. ► Lack of corrosion protection lead to corrosion fatigue failure of turbine shaft. ► Corrosion fatigue cracks due to river water leakage through the sealing box. ► High stresses during start/stop cycles in the critical radius for “wet” environment.
This paper describes the analysis of major failure of 28
MW horizontal hydro turbine shaft. The analysis of load carrying capacity of critical radius and fractography analysis are presented. Special emphasize is on metallurgical failure analysis of in-service crack initiation. The analysis of stresses is obtained by the finite element method and the developed model and load conditions are described. Finite element analysis is performed for case of normal service and start-up regime.
Based on the failure analysis and numerical calculations, it could be concluded that the seal box design led to constant flow of river water in zone of critical radius which resulted as occurrence of corrosion fatigue cracks and major failure of turbine shaft. Suggestions for problem solution for the turbine shaft are also presented.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.engfailanal.2011.10.006</doi><tpages>13</tpages></addata></record> |
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| ispartof | Engineering failure analysis, 2012-03, Vol.20, p.54-66 |
| issn | 1350-6307 1873-1961 |
| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Corrosion fatigue Cracks Failure analysis Fatigue failure Finite element method Fracture mechanics Freshwater Hydraulic turbines Marine Mathematical analysis Mathematical models Shafts Turbines |
| title | Failure analysis of hydraulic turbine shaft |
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