A Linear Motor Launcher System Integrating a Multisurface Superconducting Magnetic Bearing

Abstract

In this article, a linear motor launcher system equipped with superconducting magnetic bearings has been constructed and tested under various conditions. The guide rail of the launcher features permanent magnets that support superconducting levitation and interaction between square prism-shaped bulk superconductors on various surfaces. This results in increased stiffness of a single superconductor along any given axis and comprehensive support of lateral forces. The article investigates the use of a superconducting magnetic bearing in a linear launcher system as a novel approach to a multisurface levitation structure. The experimental system integrates the high-temperature superconductor bulk material-based carriage system and an open cryostat structure. The carriage system levitates on the permanent magnet rail by moving it using an integrated dc linear motor. The article examines the levitation force relationship and performance of the system under different selected speeds and acceleration profiles. The design of the system allows for an adjustable slope of the permanent magnet rail, demonstrating the potential for use as a linear launcher pad. In addition, the proposed system has the potential for application in larger systems, such as maglev vehicles.