Analyzing the design and performance of a DC linear stepper motor

Habil, Monier, Anayi, Fatih ORCID: https://orcid.org/0000-0001-8408-7673, Xue, Yiqin and Alnagasa, Khalefa 2023. Analyzing the design and performance of a DC linear stepper motor. Machines 11 (8) , 785. 10.3390/machines11080785

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Abstract

This paper describes the design and modelling of a DC linear stepper motor (DLSM), to investigate the air-gap magnetic flux density and the static features of the thrust force under the DC current excitation condition, while taking the nonlinear properties of iron materials used into account. A Finite Element Method (FEM) study utilizing software called a “MagNet” was employed to model and construct a linear DC motor. The thrust force, air-gap flux density, and static thrust force at various airgaps were compared in simulation and real time. The result showed that the magnetic flux density presents a sinusoidal shape in both the simulation and measurement, where the peak error value was around 7.14%. A comparison was made with thrust force, as the armature current has different values; the results show that the difference between the experimental and computed peak value was 8.07%, while the error between the measured and simulated value was 5.02% when the thrust force was measured at different air gap lengths.

Item Type:	Article
Date Type:	Published Online
Status:	Published
Schools:	Engineering
Publisher:	MDPI
ISSN:	2075-1702
Date of First Compliant Deposit:	4 August 2023
Date of Acceptance:	27 July 2023
Last Modified:	08 Aug 2023 11:21
URI:	https://orca.cardiff.ac.uk/id/eprint/161487

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