Force Characterization Of An Electromagnetic Linear Actuator

Ahmed Yahya, Tawfik (2015) Force Characterization Of An Electromagnetic Linear Actuator. Project Report. UTeM, Melaka, Malaysia. (Submitted)

Text Force Characterization of an Electromagnetic Linear Actuator - 24 pages.pdf - Submitted Version Download (493kB)

Abstract

Electromagnetic actuators are nowadays used in a vast variety of applications that require high thrust, high accuracy and different working ranges. The increasing advancements in the usage of electromagnetic actuators rises the need for more and more improvements in electromagnetic actuators especially in term of output force and working range. The thesis present an extensive characterizing study of two novel electromagnetic actuators each with different construction and characteristics aiming to analyze the behavior and output characteristics of the two designs and how these characteristics are effected by parameters and size variations. The two actuators are Tubular Linear Reluctance Actuator and Tubular Linear Permanent magnet with Halbach array Actuator. Each one of the designs has its own working principle, the Tubular Linear Reluctance Actuator employs induction motor principle where no permanent magnet is used and the other employs the synchronous motor principle where the mover is built of permanent magnets with one of the latest successful improvement of electromagnetic actuators. The study covers the variation of three parameter for each actuator air gap, number of turns and size. A comparative section is also presented for the purpose of comparison. The study concentrated extensively on the two characteristics of both actuators which are output thrust force and working range as they are considered two main concerns of any actuator design. The simulation is used to show the differences between the two design in many design aspects such as force, displacement and effects of parameters variations .The applied simulation is performed using 3D finite-element Ansoft software which is cabable of showing the magnetic field distribution in the whole actuator and predicting the strength and length of the output stroke.

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