{"title":"Analysis of the impact of changes in the stator magnetic circuit on static properties of the electromagnetic linear motor model","authors":"K. Just, P. Piskur","doi":"10.5604/01.3001.0012.6593","DOIUrl":null,"url":null,"abstract":"In this paper, the static characteristics as a function of changes in geometric dimensions\nof the stator magnetic circuit of the linear stepper actuator with permanent magnets is presented.\nThe stator is built from a series of cylindrical coils encapsulated with ferromagnetic case. The runner\nis made of permanent magnet rings connected with ferromagnetic spacers. The electromagnetic\ninterac-tion between the stator and the runner for the sequential supply of coils was analyzed.\nThe electro-magnetic force as a function of the geometry of the coils and the ferromagnetic housing\nfor the con-stant graduation of the runner was determined. The maximum, minimum, and average\nvalues of the electromagnetic force as a function of the geometric independent variable were determined.\nThe ratio of the mean force to the maximum, and mechanical work calculated as the integral of the force\non the path of the runner was adopted as the evaluation criteria. A comparison between the maximum,\naverage and relative values of forces as a function of the geometric dimensions of the stator was made.\nKeywords: modelling and simulation, linear actuator, finite element method, field calculations, cogging\nforce, magnetic force.\n\n","PeriodicalId":232579,"journal":{"name":"Bulletin of the Military University of Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2018-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of the Military University of Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5604/01.3001.0012.6593","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, the static characteristics as a function of changes in geometric dimensions
of the stator magnetic circuit of the linear stepper actuator with permanent magnets is presented.
The stator is built from a series of cylindrical coils encapsulated with ferromagnetic case. The runner
is made of permanent magnet rings connected with ferromagnetic spacers. The electromagnetic
interac-tion between the stator and the runner for the sequential supply of coils was analyzed.
The electro-magnetic force as a function of the geometry of the coils and the ferromagnetic housing
for the con-stant graduation of the runner was determined. The maximum, minimum, and average
values of the electromagnetic force as a function of the geometric independent variable were determined.
The ratio of the mean force to the maximum, and mechanical work calculated as the integral of the force
on the path of the runner was adopted as the evaluation criteria. A comparison between the maximum,
average and relative values of forces as a function of the geometric dimensions of the stator was made.
Keywords: modelling and simulation, linear actuator, finite element method, field calculations, cogging
force, magnetic force.