{"title":"基于温度依赖摩擦系数的钢轨接触温度建模","authors":"Mengling Wu, Zewang Yuan, Chun Tian, Maolin Chen","doi":"10.1109/ICITE50838.2020.9231326","DOIUrl":null,"url":null,"abstract":"The rationality of friction model affects the accuracy of rail temperature calculation. A temperature-dependent coefficient of friction (COF) was adopted to develop a 3-D FE model for calculating the rail temperature. A comparison of the results between the models using the temperature-dependent and constant COF was conducted. The peak temperature is 524.73 °C at the slippage of -50% from the temperature-dependent COF, while that is 727.88°C from the constant COF. The temperature rises linearly in the model with the temperature-dependent COF, while the temperature goes up slowly gradually before reaching the peak in the model with the constant COF. The temperature gradient in the model with the constant COF are larger than that with the temperature-dependent COF.","PeriodicalId":112371,"journal":{"name":"2020 IEEE 5th International Conference on Intelligent Transportation Engineering (ICITE)","volume":"9 5","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Modeling Rail Contact Temperature with a Temperature-dependent Coefficient of Friction\",\"authors\":\"Mengling Wu, Zewang Yuan, Chun Tian, Maolin Chen\",\"doi\":\"10.1109/ICITE50838.2020.9231326\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The rationality of friction model affects the accuracy of rail temperature calculation. A temperature-dependent coefficient of friction (COF) was adopted to develop a 3-D FE model for calculating the rail temperature. A comparison of the results between the models using the temperature-dependent and constant COF was conducted. The peak temperature is 524.73 °C at the slippage of -50% from the temperature-dependent COF, while that is 727.88°C from the constant COF. The temperature rises linearly in the model with the temperature-dependent COF, while the temperature goes up slowly gradually before reaching the peak in the model with the constant COF. The temperature gradient in the model with the constant COF are larger than that with the temperature-dependent COF.\",\"PeriodicalId\":112371,\"journal\":{\"name\":\"2020 IEEE 5th International Conference on Intelligent Transportation Engineering (ICITE)\",\"volume\":\"9 5\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 IEEE 5th International Conference on Intelligent Transportation Engineering (ICITE)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICITE50838.2020.9231326\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 IEEE 5th International Conference on Intelligent Transportation Engineering (ICITE)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICITE50838.2020.9231326","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Modeling Rail Contact Temperature with a Temperature-dependent Coefficient of Friction
The rationality of friction model affects the accuracy of rail temperature calculation. A temperature-dependent coefficient of friction (COF) was adopted to develop a 3-D FE model for calculating the rail temperature. A comparison of the results between the models using the temperature-dependent and constant COF was conducted. The peak temperature is 524.73 °C at the slippage of -50% from the temperature-dependent COF, while that is 727.88°C from the constant COF. The temperature rises linearly in the model with the temperature-dependent COF, while the temperature goes up slowly gradually before reaching the peak in the model with the constant COF. The temperature gradient in the model with the constant COF are larger than that with the temperature-dependent COF.
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