High-temperature superconducting magnetic suspension Dewar for increasing damping and suspension force and width calculation method

Abstract

The invention provides a high-temperature superconducting magnetic levitation Dewar capable of increasing damping and suspension force and a width calculation method, and relates to the technical field of high-temperature superconducting pinning magnetic levitation, the high-temperature superconducting magnetic levitation Dewar comprises an outer box body, an inner box body is fixedly connected in the outer box body through a connecting column, and the inner box body is of a cavity structure; a cavity of the inner box body is used for containing liquid nitrogen, a superconducting block material is installed at the bottom of the inner box body, the inner box body communicates with the outside through a liquid nitrogen filling pipe, and the outer box body is made of a conductive material. The magnetic suspension Dewar outer box body which is closest to the permanent magnet track, has a large magnetic field gradient at the position where the magnetic suspension Dewar outer box body is located and has the largest area opposite to the permanent magnet track is used as equipment for increasing system damping, and compared with stainless steel materials adopted in the prior art, the damping of the magnetic suspension Dewar can be remarkably increased, and the vibration attenuation capacity of the magnetic suspension Dewar can be improved.

Description

technical field [0001] The invention relates to the technical field of high-temperature superconducting pinned magnetic levitation, in particular to a high-temperature superconducting magnetic levitation Dewar and a width calculation method for increasing damping and levitation force. Background technique [0002] High-temperature superconductors are a family of superconducting substances. Compared with other superconducting substances, they have a higher critical temperature and can achieve a superconducting state at the boiling point of liquid nitrogen. Specifically, they refer to superconducting materials with a critical temperature higher than 77K. The high-temperature superconducting pinned maglev system is based on the "pinning" effect of high-temperature superconductors on the magnetic flux lines, providing levitation force for the train. However, in the high-temperature superconducting pinned magnetic levitation system, the damping of the superconducting block itself...

AI Technical Summary

Problems solved by technology

However, the high-temperature superconducting pinned magnetic levitation system has a small superconducting block itself, which may not be able to effectively suppress the violent vibration of the system. Therefore, there is an urgent need for a solution to increase damping and maximize the levitation force for the high-temperature superconducting pinned magnetic levitation system.

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