Study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehicles
Rolling contact fatigue (RCF) is a common form of wheel damage of metro vehicles, which has significant impacts on operational safety and maintenance of wheels. This paper focuses on the RCF observed in wheels used on a metro line in China. On-site investigations and simulation analyses were conduct...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Drive for Locomotives
2024-09-01
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| Series: | 机车电传动 |
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| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.05.013 |
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| author | YUAN Xinyi GAO Ennan TAO Gongquan |
| author_facet | YUAN Xinyi GAO Ennan TAO Gongquan |
| author_sort | YUAN Xinyi |
| collection | DOAJ |
| description | Rolling contact fatigue (RCF) is a common form of wheel damage of metro vehicles, which has significant impacts on operational safety and maintenance of wheels. This paper focuses on the RCF observed in wheels used on a metro line in China. On-site investigations and simulation analyses were conducted to examine the influence of various wear patterns on the RCF of wheel treads. The results showed that about 42% of the wheels rolling on this line experienced RCF on the central section of their treads, with oblique cracks forming at angles of approximately 40° to 50° relative to the horizontal plane. Moreover, these wheels exhibiting RCF typically displayed W-shaped wear patterns. Increased contact position concentration was noted at the low rail side wheels with a radius of less than 600 m when W-shaped tread wear on wheels, resulting in creep force resultants roughly perpendicular to the fatigue cracks on the wheel treads, and a significant increase in contact stress. As a result, the wheel material in the contact area was more likely to fall into the ratcheting zone. The damage values for these wheels were about two times higher than those with LM treads. To sum up, W-shaped wear on wheels is identified as the primary cause of RCF in the central section of wheel treads for vehicles operating on this line. |
| format | Article |
| id | doaj-art-bcc37cb349784dd6a0d0fcd1fe153637 |
| institution | DOAJ |
| issn | 1000-128X |
| language | zho |
| publishDate | 2024-09-01 |
| publisher | Editorial Department of Electric Drive for Locomotives |
| record_format | Article |
| series | 机车电传动 |
| spelling | doaj-art-bcc37cb349784dd6a0d0fcd1fe1536372025-08-20T03:09:25ZzhoEditorial Department of Electric Drive for Locomotives机车电传动1000-128X2024-09-01909878096930Study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehiclesYUAN XinyiGAO EnnanTAO GongquanRolling contact fatigue (RCF) is a common form of wheel damage of metro vehicles, which has significant impacts on operational safety and maintenance of wheels. This paper focuses on the RCF observed in wheels used on a metro line in China. On-site investigations and simulation analyses were conducted to examine the influence of various wear patterns on the RCF of wheel treads. The results showed that about 42% of the wheels rolling on this line experienced RCF on the central section of their treads, with oblique cracks forming at angles of approximately 40° to 50° relative to the horizontal plane. Moreover, these wheels exhibiting RCF typically displayed W-shaped wear patterns. Increased contact position concentration was noted at the low rail side wheels with a radius of less than 600 m when W-shaped tread wear on wheels, resulting in creep force resultants roughly perpendicular to the fatigue cracks on the wheel treads, and a significant increase in contact stress. As a result, the wheel material in the contact area was more likely to fall into the ratcheting zone. The damage values for these wheels were about two times higher than those with LM treads. To sum up, W-shaped wear on wheels is identified as the primary cause of RCF in the central section of wheel treads for vehicles operating on this line.http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.05.013metrowheel rolling contact fatiguewheel wearfatigue indexdamage functionurban rail transit |
| spellingShingle | YUAN Xinyi GAO Ennan TAO Gongquan Study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehicles 机车电传动 metro wheel rolling contact fatigue wheel wear fatigue index damage function urban rail transit |
| title | Study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehicles |
| title_full | Study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehicles |
| title_fullStr | Study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehicles |
| title_full_unstemmed | Study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehicles |
| title_short | Study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehicles |
| title_sort | study on the mechanism of rolling contact fatigue in the central section of wheel treads for metro vehicles |
| topic | metro wheel rolling contact fatigue wheel wear fatigue index damage function urban rail transit |
| url | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.05.013 |
| work_keys_str_mv | AT yuanxinyi studyonthemechanismofrollingcontactfatigueinthecentralsectionofwheeltreadsformetrovehicles AT gaoennan studyonthemechanismofrollingcontactfatigueinthecentralsectionofwheeltreadsformetrovehicles AT taogongquan studyonthemechanismofrollingcontactfatigueinthecentralsectionofwheeltreadsformetrovehicles |