The paper presents technical solutions for the propulsion of vehicles using magnetic levitation. Two Maglev railway propulsion systems are presented.1. INTRODUCTION
Nowadays, high-speed rail is not only associated with conventional rail; magnetic rail has allowed for high speeds reaching up to 450 km/h. The first studies related to the use of levitation were conducted by the German engineer Hermann Kemper in 1922. In 1934, he patented his invention, and a year later, he presented his discovery on a real-world object.
Work on magnetic rail was started by Japan and Germany, and it has been ongoing for almost 40 years. A train using magnetic levitation is lighter compared to a conventional rail vehicle. A magnetic vehicle does not have wheelsets or electric motors, which contributes to a reduction in its mass.
Thanks to funding from the German government, research into variants of solutions with electrodynamic suspension and the use of permanent magnets in combination with propulsion via linear motors began in 1965. The late 1970s allowed for the development of the concept of the current system used in Maglev railways.
German engineers, thanks to the construction of an experimental section in Emsland with a length of 13.5 km, had the opportunity to perform test runs on a real-world object. Conducting test runs allowed for finding the best technical solutions and successfully completing tests of the three-section TR vehicle.
Work related to the development of magnetic rail was also undertaken by Japan, which began in the 1960s. (…)
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Source: Logistyka Magazine
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