Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Tilo Espenhahn"'
Publikováno v:
Materials, Vol 17, Iss 18, p 4516 (2024)
Bulk high-temperature superconductors (HTSs) such as REBa2Cu3O7−x (REBCO, RE = Y, Gd) are commonly used in rotationally symmetric superconducting magnetic bearings. However, such bulks have several disadvantages such as brittleness, limited availab
Externí odkaz:
https://doaj.org/article/d6e5e044efad4535b4d2d7330d5e8085
Publikováno v:
IEEE Transactions on Applied Superconductivity. 31:1-5
The dynamic properties of a ring-shaped superconducting magnetic bearing used in textile machines were studied for a micrometer displacement range. Therefore, a new measurement setup was designed that allows to excite the freely levitating magnet rin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07d7e5189b452c442e57ad380db9ba31
https://doi.org/10.1109/tasc.2021.3058920
https://doi.org/10.1109/tasc.2021.3058920
Autor:
Ruben Hühne, Christian Telke, Michael Beitelschmidt, Anwar Abdkader, Tilo Espenhahn, Mahmud Hossain, Maria Sparing, Chokri Cherif
Publikováno v:
Fibres and Textiles in Eastern Europe. 26:32-40
The productivity of the conventional ring spinning process is currently limited by the frictional heat that occurs in the ring/traveler twisting system. In the framework of a fundamental research project from the German Research Foundation (DFG), the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4135cd04830a17eaf65c3f6ebac81b27
https://doi.org/10.5604/01.3001.0012.2528
https://doi.org/10.5604/01.3001.0012.2528
Publikováno v:
IEEE Transactions on Applied Superconductivity. 28:1-5
Superconducting levitation systems mainly use permanent magnetic tracks to generate the magnetic field required for levitation. However, switchable tracks are necessary for crossings or turnouts. We present flux density simulations, which show the ap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64932c873778de4074ba9c5894af084b
https://doi.org/10.1109/tasc.2018.2794143
https://doi.org/10.1109/tasc.2018.2794143
Publikováno v:
Superconductor Science and Technology. 34:125004
Superconducting magnetic bearings enable friction-free rotation, which is beneficial for different applications. Whereas mechanical losses are drastically reduced, additional hysteretic losses might be generated as for example by a process-related ti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dd07ed16668c7c9edb857939637db9e
https://doi.org/10.1088/1361-6668/ac2ec7
https://doi.org/10.1088/1361-6668/ac2ec7
Autor:
Dietmar Berger, Ludwig Schultz, Ruben Hühne, Tilo Espenhahn, Kornelius Nielsch, Stefan Hameister
Publikováno v:
IEEE Transactions on Applied Superconductivity. 27:1-5
In the past years, different superconducting levitation systems were developed around the world. Most projects focused on optimizing the flux density in the working space of the superconductor in order to maximize the levitation force of the system.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d163c7d0da9aa82be9367b5a3659774
https://doi.org/10.1109/tasc.2017.2652542
https://doi.org/10.1109/tasc.2017.2652542
Autor:
Anwar Abdkader, Ruben Hühne, Günter Fuchs, Chokri Cherif, Maria Sparing, Mahmud Hossain, Kornelius Nielsch, Tilo Espenhahn
Publikováno v:
Engineering Research Express. 2:035039
Ring spinning is the leading textile technology for the production of short staple yarn, which runs commercially up to a maximum speed of 25 000 rpm. Higher speeds result in yarn damage mainly due to frictional heat. To eliminate this limitation, a f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9937d3a9e263ec59e145d6f40a8c592f
https://doi.org/10.1088/2631-8695/abb7e4
https://doi.org/10.1088/2631-8695/abb7e4
Autor:
Mahmud Hossain, Marcel Möller, Günter Fuchs, Ruben Hühne, Chokri Cherif, Maria Sparing, Florian Wunderwald, Kornelius Nielsch, Anwar Abdkader, Tilo Espenhahn
Publikováno v:
Journal of Physics D: Applied Physics. 53:035002
Rotating superconducting bearings promise great potential in applications due to their frictionless operation. However, these bearings show a lower dynamic stiffness and damping coefficient compared to ball bearings. In this paper we studied a bearin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb928fa784cdd158e11f345fdfaeb341
https://doi.org/10.1088/1361-6463/ab4ed4
https://doi.org/10.1088/1361-6463/ab4ed4
Publikováno v:
Superconductor Science and Technology. 31:125007
Whereas current superconducting levitation systems typically use permanent magnetic tracks, additional switchable components are required to realize fast turnouts or crossings. Therefore, a prototype for a switchable track segment was realized by a c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23c90a6bc9ddca9bd2538ee7b1381f7a
https://doi.org/10.1088/1361-6668/aae45f
https://doi.org/10.1088/1361-6668/aae45f
Autor:
Tilo Espenhahn, Florian Wunderwald, Marcel Möller, Maria Sparing, Mahmud Hossain, Günter Fuchs, Anwar Abdkader, Chokri Cherif, Kornelius Nielsch, Ruben Hühne
Publikováno v:
Journal of Physics D: Applied Physics; 1/16/2020, Vol. 53 Issue 3, p1-1, 1p