Energy losses in magnetic contactless bearings on the base of high-Tc superconducting tapes. (September 2019)

• Record Type: Journal Article
• Authors: Rudnev, I A; Podlivaev, A I; Osipov, M A; Abin, D A; Anischenko, I V; Pokrovskii, S V
• Is Part Of: Journal of physics. Volume 1293(2019)
• Publication Date: 2019-09
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1293/1/012085
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: High-temperature superconducting tapes are very promising for application in rotary magnetic bearings owing to its excellent magnetic and transport properties as well as possibility to easy create magneto-levitation systems of various geometry. One of problem arising in the rotation superconducting bearings is the presence of the energy loss resulting from the magnetization hysteresis due to inhomogeneity of magnetic field from permanent magnets. In this report we present results theoretical studies of rotation losses in the model superconducting bearing based on commercial high temperature superconducting (HTS) tape. The bearing stator has a cylindrical shape and is made of a multilayer HTSC tape. The bearing rotor is made of permanent magnets located at the same radius relative to the axis of rotation. As a result of numerical calculations carried out in the framework of the critical state model, the rotor geometry was established, at which the value of energy losses was minimal.