SciELO - Scientific Electronic Library Online

 
 número67Performance of multivariable traffic model that allows estimating Throughput mean valuesConceptual design of a Langmüir probe for cold plasma characterization employing statistical design of experiments índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Revista Facultad de Ingeniería Universidad de Antioquia

versão impressa ISSN 0120-6230

Resumo

MARTINEZ, Juan E.  e  BEDOYA, Carol L.. A novel exponential function based model for an uniaxial magnetic levitation system. Rev.fac.ing.univ. Antioquia [online]. 2013, n.67, pp.63-75. ISSN 0120-6230.

In this paper a new dynamic model for a uniaxial magnetic levitation system is developed from magnetostatic principles, which we have not found in literature. The system has two coils which are the actuators to control the position of two magnets that need to slide on a vertical axis; this configuration is used in motors with magnetic suspension and generally in any system with active magnetic bearings. Based on the Amperian model and the Biot - Savart law for this system, it was established by means of numerical calculations, the force and distance relationships between the actuators and magnets and between magnets. Once the mentioned relations were numerically determined, then exponential curve fitting was done to them, in order to obtain the nonlinear dynamic model of the magnetic suspension system. This article further presents a linearized model generated from the model previously obtained, showing that it correctly represents the system dynamics near the point of operation.

Palavras-chave : Nonlinear systems; magnetic levitation; Jacobian matrix; Magnetic Bearings.

        · resumo em Espanhol     · texto em Espanhol     · Espanhol ( pdf )