A Dynamical Stiffness Evaluation Model for a Ring-Shaped Superconductor Magnetic Bearing System

Sivrioglu S., BAŞARAN S.

IEEE Transactions on Applied Superconductivity, cilt.25, sa.4, 2015 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 25 Sayı: 4
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1109/tasc.2015.2417680
  • Dergi Adı: IEEE Transactions on Applied Superconductivity
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Anahtar Kelimeler: Frozen image concept, Stiffness simulation, Superconducting magnetic bearing
  • Bilecik Şeyh Edebali Üniversitesi Adresli: Hayır

Özet

In this paper, a rotor - permanent magnet inside a ring-shaped superconductor magnetic bearing system is modeled and simulated using a dynamic stiffness approach. Analytical expressions of the stiffness effects are defined on the basis of a magnetic potential obtained with a frozen-image concept. For engineering applications, the rotor dynamics must be considered with the effective stiffness of the ring-shaped superconducting magnetic bearing. In the proposed model, the variation of the stiffness and the dynamics of the rotor are analyzed for some initial angular and translational movements.