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Magnetic levitation (Maglev) technology has potentials to create extensive changes, especially in
railway transportation. One of the great advantages of this technology is the possibility of mechanically
noncontact and high-speed operation. Maglev applications basically can be electromagnetic or
superconducting levitation base. After high temperature superconductors (HTS) which become
superconducting state inside liquid nitrogen were discovered in eighties, superconducting magnetic
levitation became economically applicable in engineering systems. Superconducting magnetic
levitation has potentials to be developed compared to electromagnetic levitation. Although
superconducting levitation has an advantage of passive characteristic, it occurs at cryogenic
temperatures and it has low levitation stiffness therefore load carrying capacity is lower compared to
electromagnetic levitation.
In this study, a cryostat which cool the superconductors for a long period of time and carry the load
was designed to increase stiffness or load capacity of the superconducting magnetic levitation in
Maglev vehicles. Also, a conceptual design was tested in a simulation environment by using a
laboratory scale single seater Maglev vehicle having a three-surface levitation structure. In
conventional permanent magnet (PM) guideway structures there is only one levitation surface (floor
surface) with HTS element. A new type of permanent magnet guideway which has three PM surfaces
for levitation with HTS will be developed to increase the load carrying capacity of the Maglev vehicle.
International Symposium on Railway System Engineering
ISERSE
Ali Suat Yıldız
Selim Sivrioğlu
Sinan Başaran
Fevzi Çakmak Bolat
Eren Kepenek