Radial stiffness improvement of a flywheel system using multi-surface superconducting levitation

BAŞARAN S., Sivrioglu S.

Superconductor Science and Technology, cilt.30, sa.3, 2017 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 30 Sayı: 3
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1088/1361-6668/30/3/035008
  • Dergi Adı: Superconductor Science and Technology
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: flywheel system, frequency analysis, radial stiffness, superconducting magnetic bearing
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Hayır

Özet

The goal of this research study is the maximization of the levitation force in a flywheel system by the use of more than one permanent magnet with a single ring-shaped HTS material. An analytical model for the radial stiffness of the ring HTS-PM is derived using the frozen image approach. The experimental works are carried out for different polarizations of the permanent magnets, and radial stiffness values are obtained from the radial force measurements. The rotational test of the flywheel system is also realized for different cases. Finally, natural frequencies of the flywheel superconducting magnetic bearing system are experimentally obtained for different combinations of the permanent magnets using a frequency analyzer.