{"title":"短行程直流电动机涡流阻尼分析","authors":"Li Liyi, Pan Donghua, Kou Baoquan","doi":"10.1109/CEFC.2010.5481809","DOIUrl":null,"url":null,"abstract":"Eddy currents induced in a conductor in a changing magnetic field produce a damping force proportional to the heat generated in the conductive material. In the DC linear motor system, the conductive plate is added under coils for damping force to improve motor's dynamic response. In the preliminary work, the formula of magnetic field distribution is obtained by the method of images, so the eddy current inducted in the conductor is calculated. Then the damping force is obtained after the equivalent resistance and inductance of conductance place are calculated. The design of eddy current damping for short-stroke DC linear motor is optimized by the formula of damping force, and obtains the speed of mover when maximal damping force is induced.","PeriodicalId":148739,"journal":{"name":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","volume":"10 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Analysis of eddy current damping for short-stroke DC linear motor\",\"authors\":\"Li Liyi, Pan Donghua, Kou Baoquan\",\"doi\":\"10.1109/CEFC.2010.5481809\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Eddy currents induced in a conductor in a changing magnetic field produce a damping force proportional to the heat generated in the conductive material. In the DC linear motor system, the conductive plate is added under coils for damping force to improve motor's dynamic response. In the preliminary work, the formula of magnetic field distribution is obtained by the method of images, so the eddy current inducted in the conductor is calculated. Then the damping force is obtained after the equivalent resistance and inductance of conductance place are calculated. The design of eddy current damping for short-stroke DC linear motor is optimized by the formula of damping force, and obtains the speed of mover when maximal damping force is induced.\",\"PeriodicalId\":148739,\"journal\":{\"name\":\"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation\",\"volume\":\"10 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-05-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CEFC.2010.5481809\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Digests of the 2010 14th Biennial IEEE Conference on Electromagnetic Field Computation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CEFC.2010.5481809","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Analysis of eddy current damping for short-stroke DC linear motor
Eddy currents induced in a conductor in a changing magnetic field produce a damping force proportional to the heat generated in the conductive material. In the DC linear motor system, the conductive plate is added under coils for damping force to improve motor's dynamic response. In the preliminary work, the formula of magnetic field distribution is obtained by the method of images, so the eddy current inducted in the conductor is calculated. Then the damping force is obtained after the equivalent resistance and inductance of conductance place are calculated. The design of eddy current damping for short-stroke DC linear motor is optimized by the formula of damping force, and obtains the speed of mover when maximal damping force is induced.
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