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Analyzing the design and performance of a DC linear stepper motor

Habil, Monier, Anayi, Fatih ORCID:, 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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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

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