Publication detail

FEM model of magnetic circuit and its verifivation

KUBÍK, M. MACHÁČEK, O. STRECKER, Z. MAZŮREK, I.

Original Title

FEM model of magnetic circuit and its verifivation

Type

conference paper

Language

English

Original Abstract

Magnetorheological (MR) dampers are an advanced devices, where the magnetic circuit plays significant role. Manuals for designing of magnetic circuit and its time response does not exist. Not even possible to use analytical equations. There-fore the finite element analysis (FEA) is necessary to use. The FEA cannot be blindly trust. Before we use model based on FEA for final design of the circuit its accuracy has to be determined. The model results are significantly influenced by input parameters – geometry material properties, elements size boundary condi-tions etc. We cannot expect model corresponding to reality without suitable definition of input parameter. This paper aims to compare the results obtained from the FEA, measurement and determine their relative offsets. Experimental device was developed for magnetic induction measurement in the circuit using a magnetometer. The device consists of cooper coil two ferrite cores MR fluid and stand made of polyamide. The device was modelled in ANSYS Maxwell and the transient analysis was performed. The predicted values of magnetic induction correspond with the experiment.

Keywords

MR damper, ferrite magnetic circuit, Ansys Maxwell

Authors

KUBÍK, M.; MACHÁČEK, O.; STRECKER, Z.; MAZŮREK, I.

RIV year

2015

Released

9. 9. 2015

Publisher

Publishing Center SUA Nitra

Location

Nitra

ISBN

978-80-552-1377-4

Book

Book of Proceeding of 56th International Conference of Machine Design Departments

Pages from

99

Pages to

104

Pages count

400

BibTex

@inproceedings{BUT116256,
  author="Michal {Kubík} and Ondřej {Macháček} and Zbyněk {Strecker} and Ivan {Mazůrek}",
  title="FEM model of magnetic circuit and its verifivation",
  booktitle="Book of Proceeding of 56th International Conference of Machine Design Departments",
  year="2015",
  pages="99--104",
  publisher="Publishing Center SUA Nitra",
  address="Nitra",
  isbn="978-80-552-1377-4"
}