Fatigue life analysis of automotive key parts based on improved peak‐over‐threshold method
To eliminate the limitations of the peak‐over‐threshold (POT) extrapolation method, the paper proposes an improved POT extrapolation method to reconstruct the load sequence and frequency of the part. A threshold model is established based on a generalized Pareto distribution (GPD). Assuming a road s...
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| Veröffentlicht in: | Fatigue & fracture of engineering materials & structures 2020-08, Vol.43 (8), p.1824-1836 |
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| container_issue | 8 |
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| container_title | Fatigue & fracture of engineering materials & structures |
| container_volume | 43 |
| creator | Liu, Xintian Zhang, Minghui Wang, Haijie Luo, Jiao Tong, Jiachi Wang, Xiaolan |
| description | To eliminate the limitations of the peak‐over‐threshold (POT) extrapolation method, the paper proposes an improved POT extrapolation method to reconstruct the load sequence and frequency of the part. A threshold model is established based on a generalized Pareto distribution (GPD). Assuming a road surface's irregularity obeys a normal distribution, the load between the upper and lower thresholds is reconstructed to obtain more dynamic road load data. Rain‐flow counting method is used to calculate the peak‐to‐valley value and frequency of the load signal, and the characteristics of the load mean and amplitude before and after the improvement of the POT extrapolation method were discussed. The effectiveness and conservativeness of the enhanced method are verified by predicting the fatigue life of a swing support rod. |
| doi_str_mv | 10.1111/ffe.13235 |
| format | Article |
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A threshold model is established based on a generalized Pareto distribution (GPD). Assuming a road surface's irregularity obeys a normal distribution, the load between the upper and lower thresholds is reconstructed to obtain more dynamic road load data. Rain‐flow counting method is used to calculate the peak‐to‐valley value and frequency of the load signal, and the characteristics of the load mean and amplitude before and after the improvement of the POT extrapolation method were discussed. The effectiveness and conservativeness of the enhanced method are verified by predicting the fatigue life of a swing support rod.</description><identifier>ISSN: 8756-758X</identifier><identifier>EISSN: 1460-2695</identifier><identifier>DOI: 10.1111/ffe.13235</identifier><language>eng</language><publisher>Oxford: Wiley Subscription Services, Inc</publisher><subject>Extrapolation ; Fatigue life ; generalized Pareto distribution ; load spectrum ; load‐spectrum extrapolation ; mixture distribution ; Normal distribution ; peak‐over‐threshold ; Stress concentration</subject><ispartof>Fatigue & fracture of engineering materials & structures, 2020-08, Vol.43 (8), p.1824-1836</ispartof><rights>2020 Wiley Publishing Ltd.</rights><rights>2020 John Wiley & Sons Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2975-2993e88671de85d30fe8beae746ec0c6c5d1e1ff85985706bf6423b0ae3ab44f3</citedby><cites>FETCH-LOGICAL-c2975-2993e88671de85d30fe8beae746ec0c6c5d1e1ff85985706bf6423b0ae3ab44f3</cites><orcidid>0000-0002-3395-9176</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1111%2Fffe.13235$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1111%2Fffe.13235$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Liu, Xintian</creatorcontrib><creatorcontrib>Zhang, Minghui</creatorcontrib><creatorcontrib>Wang, Haijie</creatorcontrib><creatorcontrib>Luo, Jiao</creatorcontrib><creatorcontrib>Tong, Jiachi</creatorcontrib><creatorcontrib>Wang, Xiaolan</creatorcontrib><title>Fatigue life analysis of automotive key parts based on improved peak‐over‐threshold method</title><title>Fatigue & fracture of engineering materials & structures</title><description>To eliminate the limitations of the peak‐over‐threshold (POT) extrapolation method, the paper proposes an improved POT extrapolation method to reconstruct the load sequence and frequency of the part. 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The effectiveness and conservativeness of the enhanced method are verified by predicting the fatigue life of a swing support rod.</description><subject>Extrapolation</subject><subject>Fatigue life</subject><subject>generalized Pareto distribution</subject><subject>load spectrum</subject><subject>load‐spectrum extrapolation</subject><subject>mixture distribution</subject><subject>Normal distribution</subject><subject>peak‐over‐threshold</subject><subject>Stress concentration</subject><issn>8756-758X</issn><issn>1460-2695</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp1kLFOwzAURS0EEqUw8AeWmBjS2nHs2COqWkCqxAISE5GTPNO0SR3spCgbn8A38iUYwspb7h3Oe3r3InRJyYyGmRsDM8pixo_QhCaCRLFQ_BhNZMpFlHL5fIrOvN8SQkXC2AS9rHRXvfaA68oA1ntdD77y2Bqs-842tqsOgHcw4Fa7zuNceyix3eOqaZ09BN-C3n19fAbvgnQbB35j6xI30G1seY5OjK49XPzpFD2tlo-Lu2j9cHu_uFlHRaxSHsVKMZBSpLQEyUtGDMgcNKSJgIIUouAlBWqM5ErylIjciCRmOdHAdJ4khk3R1Xg3fPXWg--yre1dSOOzOKGKKhlTFajrkSqc9d6ByVpXNdoNGSXZT31ZqC_7rS-w85F9r2oY_gez1Wo5bnwDVpl0XA</recordid><startdate>202008</startdate><enddate>202008</enddate><creator>Liu, Xintian</creator><creator>Zhang, Minghui</creator><creator>Wang, Haijie</creator><creator>Luo, Jiao</creator><creator>Tong, Jiachi</creator><creator>Wang, Xiaolan</creator><general>Wiley Subscription Services, Inc</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7TB</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><orcidid>https://orcid.org/0000-0002-3395-9176</orcidid></search><sort><creationdate>202008</creationdate><title>Fatigue life analysis of automotive key parts based on improved peak‐over‐threshold method</title><author>Liu, Xintian ; Zhang, Minghui ; Wang, Haijie ; Luo, Jiao ; Tong, Jiachi ; Wang, Xiaolan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2975-2993e88671de85d30fe8beae746ec0c6c5d1e1ff85985706bf6423b0ae3ab44f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Extrapolation</topic><topic>Fatigue life</topic><topic>generalized Pareto distribution</topic><topic>load spectrum</topic><topic>load‐spectrum extrapolation</topic><topic>mixture distribution</topic><topic>Normal distribution</topic><topic>peak‐over‐threshold</topic><topic>Stress concentration</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Xintian</creatorcontrib><creatorcontrib>Zhang, Minghui</creatorcontrib><creatorcontrib>Wang, Haijie</creatorcontrib><creatorcontrib>Luo, Jiao</creatorcontrib><creatorcontrib>Tong, Jiachi</creatorcontrib><creatorcontrib>Wang, Xiaolan</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Fatigue & fracture of engineering materials & structures</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Xintian</au><au>Zhang, Minghui</au><au>Wang, Haijie</au><au>Luo, Jiao</au><au>Tong, Jiachi</au><au>Wang, Xiaolan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fatigue life analysis of automotive key parts based on improved peak‐over‐threshold method</atitle><jtitle>Fatigue & fracture of engineering materials & structures</jtitle><date>2020-08</date><risdate>2020</risdate><volume>43</volume><issue>8</issue><spage>1824</spage><epage>1836</epage><pages>1824-1836</pages><issn>8756-758X</issn><eissn>1460-2695</eissn><abstract>To eliminate the limitations of the peak‐over‐threshold (POT) extrapolation method, the paper proposes an improved POT extrapolation method to reconstruct the load sequence and frequency of the part. 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| subjects | Extrapolation Fatigue life generalized Pareto distribution load spectrum load‐spectrum extrapolation mixture distribution Normal distribution peak‐over‐threshold Stress concentration |
| title | Fatigue life analysis of automotive key parts based on improved peak‐over‐threshold method |
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