{"title":"电接触加热的球面模型与轴对称模型的比较及其应用条件","authors":"S. Kharin","doi":"10.1109/HOLM.2017.8088062","DOIUrl":null,"url":null,"abstract":"Two mathematical models, spherical and axisymmetric, describing the temperature field in closed electrical contacts are compared and the rightness of their application is discussed. The ranges of the contact radius, time and current are determined for which one or another model could be applied with the required accuracy. The temperature field in the axisymmetric model is found in the form of alternative series where the first term represents the solution in the spherical model. It enables us to estimate the error in calculation of the temperature using the spherical model with respect to the axisymmetric model. Some applications to the experimental data are considered.","PeriodicalId":354484,"journal":{"name":"2017 IEEE Holm Conference on Electrical Contacts","volume":"137 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2017-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Comparison of spherical and axisymmetric models of electrical contact heating and the conditions of their application\",\"authors\":\"S. Kharin\",\"doi\":\"10.1109/HOLM.2017.8088062\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Two mathematical models, spherical and axisymmetric, describing the temperature field in closed electrical contacts are compared and the rightness of their application is discussed. The ranges of the contact radius, time and current are determined for which one or another model could be applied with the required accuracy. The temperature field in the axisymmetric model is found in the form of alternative series where the first term represents the solution in the spherical model. It enables us to estimate the error in calculation of the temperature using the spherical model with respect to the axisymmetric model. Some applications to the experimental data are considered.\",\"PeriodicalId\":354484,\"journal\":{\"name\":\"2017 IEEE Holm Conference on Electrical Contacts\",\"volume\":\"137 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2017-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2017 IEEE Holm Conference on Electrical Contacts\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/HOLM.2017.8088062\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2017 IEEE Holm Conference on Electrical Contacts","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/HOLM.2017.8088062","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Comparison of spherical and axisymmetric models of electrical contact heating and the conditions of their application
Two mathematical models, spherical and axisymmetric, describing the temperature field in closed electrical contacts are compared and the rightness of their application is discussed. The ranges of the contact radius, time and current are determined for which one or another model could be applied with the required accuracy. The temperature field in the axisymmetric model is found in the form of alternative series where the first term represents the solution in the spherical model. It enables us to estimate the error in calculation of the temperature using the spherical model with respect to the axisymmetric model. Some applications to the experimental data are considered.
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