Design Analysis of Taper Width Variations in Magnetless Linear Machine for Traction Applications

Abstract

Linear motors are being used in a different application with a huge popularity in the use of transport industry. With the invention of maglev trains and other high-speed trains, linear motors are being used for the translation and braking applications for these systems. However, a huge drawback of the linear motor design is the cogging force, low thrust values, and voltage ripples. This paper aims to study the force analysis with change in taper/teeth width of the motor stator and mover to understand the best teeth ratio to obtain a high flux density and a high thrust. The analysis is conducted through JMAG software and it is found that the optimum teeth ratio for both the stator and mover gives an increase of 94.4% increases compared to the 0.5mm stator and mover width.

Analyzing the Design and Performance of a DC Linear Stepper Motor

“…Linear motors provide a direct linear motion without the need for mechanical transmission devices, such as gears, belts, chains, or motor couplings. This compliance eliminates backlash, reduces friction, and increases motor efficiency, unlike conventional rotary motors [3,4]. The simple structure of DLSM offers high flexibility to the machine in terms of size and space, with the few components needed in the motor and limited lubrication making installation and maintenance easy.…”