High force tubular linear actuator with integrated eddy current brake for spring-loaded systems

Author

Gruber, Sebastian ; Kruger, Bjorn ; Soter, S.

Author_Institution

Inst. of Electr. Machines & Drives, Univ. of Wuppertal, Wuppertal, Germany

fYear

2013

fDate

9-12 Sept. 2013

Firstpage

1

Lastpage

5

Abstract

In order to meet safety standards in manufacturing industry many production machines are equipped with safety stop functions based on spring-loaded systems. This paper deals with an integrated eddy current brake of a high force tubular permanent magnet linear actuator for hydraulic applications with small actuating pathes. An analytical description of different design criteria for the integrated eddy current brake are shown. The special not rotational symmetrical design of the tubular linear actuator is transferred to a 2D transient FEM simulation model to predict the braking behavior caused by the spring load in case of an emergency stop. Measurements on a test bench are in good agreement with the simulation results and are used to validate the model.

Keywords

actuators; eddy current braking; finite element analysis; magnetic actuators; occupational safety; springs (mechanical); 2D transient FEM simulation; bench testing; eddy current brakes; emergency stop; high force tubular linear actuator; manufacturing industry safety standards; production machines; spring-loaded systems; Actuators; Eddy currents; Force; Load modeling; Mathematical model; Stator windings; Eddy Current Brake; FEM Simulation; Linear Actuator; Permanent Magnet Linear Synchronous Motor;

fLanguage

English

Publisher

ieee

Conference_Titel

AFRICON, 2013

Conference_Location

Pointe-Aux-Piments

ISSN

2153-0025

Print_ISBN

978-1-4673-5940-5

Type

conf

DOI

10.1109/AFRCON.2013.6757738

Filename

6757738