{"title":"根据接触面热量分布计算电枢熔化磨损率","authors":"Anxin Guo;Xiangyu Du;Xuezhi Wang;Shaowei Liu","doi":"10.1109/TPS.2024.3406713","DOIUrl":null,"url":null,"abstract":"Wear between the armature and the rail directly affects the state of armature–rail contact, which in turn affects the service life and launching efficiency of the electromagnetic rail launcher. In order to investigate the armature melting wear law during the launching process, a heat distribution model on the contact surface of the armature–rail is proposed, and a transient calculation model of armature wear is derived; to solve the model, the excitation current, inductance gradient, and contact resistance of the launcher were calculated and further analyzed with respect to the kinematic characteristics of the armature chamber. On this basis, the change rule of armature melting wear rate and the influencing factors are studied, and the derived calculation model is verified by using the experimental method. The results of this study show that the trend of armature wear rate can be broadly classified into a rapidly increasing phase, a sharply decreasing phase, and a smooth phase, with the maximum wear rate reaching about 0.008; the coefficient of friction, rail material, and rail structure all have an effect on the magnitude of the armature wear rate, but do not affect the trend of the armature wear rate; the experimentally verified armature wear volume differs from the theoretically calculated wear volume by only 3.65%. The model and analysis results established in this article are of great significance for optimizing the armature structure, improving the armature–rail contact performance, and ensuring the launching safety.","PeriodicalId":450,"journal":{"name":"IEEE Transactions on Plasma Science","volume":null,"pages":null},"PeriodicalIF":1.3000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Calculation of Armature Melting Wear Rate Based on Contact Surface Heat Distribution\",\"authors\":\"Anxin Guo;Xiangyu Du;Xuezhi Wang;Shaowei Liu\",\"doi\":\"10.1109/TPS.2024.3406713\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Wear between the armature and the rail directly affects the state of armature–rail contact, which in turn affects the service life and launching efficiency of the electromagnetic rail launcher. In order to investigate the armature melting wear law during the launching process, a heat distribution model on the contact surface of the armature–rail is proposed, and a transient calculation model of armature wear is derived; to solve the model, the excitation current, inductance gradient, and contact resistance of the launcher were calculated and further analyzed with respect to the kinematic characteristics of the armature chamber. On this basis, the change rule of armature melting wear rate and the influencing factors are studied, and the derived calculation model is verified by using the experimental method. The results of this study show that the trend of armature wear rate can be broadly classified into a rapidly increasing phase, a sharply decreasing phase, and a smooth phase, with the maximum wear rate reaching about 0.008; the coefficient of friction, rail material, and rail structure all have an effect on the magnitude of the armature wear rate, but do not affect the trend of the armature wear rate; the experimentally verified armature wear volume differs from the theoretically calculated wear volume by only 3.65%. The model and analysis results established in this article are of great significance for optimizing the armature structure, improving the armature–rail contact performance, and ensuring the launching safety.\",\"PeriodicalId\":450,\"journal\":{\"name\":\"IEEE Transactions on Plasma Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2024-09-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"IEEE Transactions on Plasma Science\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://ieeexplore.ieee.org/document/10675364/\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, FLUIDS & PLASMAS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Plasma Science","FirstCategoryId":"101","ListUrlMain":"https://ieeexplore.ieee.org/document/10675364/","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
Calculation of Armature Melting Wear Rate Based on Contact Surface Heat Distribution
Wear between the armature and the rail directly affects the state of armature–rail contact, which in turn affects the service life and launching efficiency of the electromagnetic rail launcher. In order to investigate the armature melting wear law during the launching process, a heat distribution model on the contact surface of the armature–rail is proposed, and a transient calculation model of armature wear is derived; to solve the model, the excitation current, inductance gradient, and contact resistance of the launcher were calculated and further analyzed with respect to the kinematic characteristics of the armature chamber. On this basis, the change rule of armature melting wear rate and the influencing factors are studied, and the derived calculation model is verified by using the experimental method. The results of this study show that the trend of armature wear rate can be broadly classified into a rapidly increasing phase, a sharply decreasing phase, and a smooth phase, with the maximum wear rate reaching about 0.008; the coefficient of friction, rail material, and rail structure all have an effect on the magnitude of the armature wear rate, but do not affect the trend of the armature wear rate; the experimentally verified armature wear volume differs from the theoretically calculated wear volume by only 3.65%. The model and analysis results established in this article are of great significance for optimizing the armature structure, improving the armature–rail contact performance, and ensuring the launching safety.
期刊介绍:
The scope covers all aspects of the theory and application of plasma science. It includes the following areas: magnetohydrodynamics; thermionics and plasma diodes; basic plasma phenomena; gaseous electronics; microwave/plasma interaction; electron, ion, and plasma sources; space plasmas; intense electron and ion beams; laser-plasma interactions; plasma diagnostics; plasma chemistry and processing; solid-state plasmas; plasma heating; plasma for controlled fusion research; high energy density plasmas; industrial/commercial applications of plasma physics; plasma waves and instabilities; and high power microwave and submillimeter wave generation.