• Türkçe
    • English
  • Türkçe 
    • Türkçe
    • English
  • Giriş
Öğe Göster 
  •   RTEÜ
  • Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed
  • WoS İndeksli Yayınlar Koleksiyonu
  • Öğe Göster
  •   RTEÜ
  • Araştırma Çıktıları | TR-Dizin | WoS | Scopus | PubMed
  • WoS İndeksli Yayınlar Koleksiyonu
  • Öğe Göster
JavaScript is disabled for your browser. Some features of this site may not work without it.

An analysis on the relation between the seed distance and vertical levitation force for the multi-seeded YBCO using the modified advanced frozen image (MAFI) and experimental methods

Thumbnail

Göster/Aç

Full Text / Tam Metin (1.535Mb)

Erişim

info:eu-repo/semantics/closedAccess

Tarih

2019

Yazar

Öztürk, Kemal
Güner, Sait Barış
Abdioğlu, Murat
Demirci, Mehmet
Çelik, Şükrü
Cansız, Ahmet

Üst veri

Tüm öğe kaydını göster

Künye

Öztürk, K., Güner, S.B., Abdioğlu, M., Demirci, M., Çelik, Ş. & Cansız, A. (2019). An analysis on the relation between the seed distance and vertical levitation force for the multi-seeded YBCO using the modified advanced frozen image (MAFI) and experimental methods. Journal of Alloys and Compounds, 805, 1208-1216. https://doi.org/10.1016/j.jallcom.2019.07.205

Özet

The higher magnetic levitation force and related stiffness values are very important for Maglev and magnetic bearing applications. Also, larger superconducting surface area is needed for continuous and larger magnetic mediums with different geometries and dimensions in real scale industrial applications of superconducting systems. in this study, the cylindrical YBCO superconductors were fabricated by top-seeded melt growth (TSMG) method in single and two-seeded forms with different seed distances and then the magnetic force and stiffness measurements were carried out by three axes magnetic force measurement system in different cooling heights (CH) of 20mm and 75 mm. Additionally, a new analytical method, based on the magnetic dipole approximation, is proposed to calculate the levitation force in this study, named as Modified Advanced Frozen Image Method (MAFI), since although the Advanced Frozen Image Method in literature can calculate the levitation force with hysteresis, this method does not include the size effect of the superconductor. in the experimental studies, it is seen that the maximum levitation force values obtained by PMG with three PMs (named PMG-1) are more than two times higher than that of obtained with single PM for all samples with different distance of seeds, because of the higher magnetic flux distribution of related PMG arrangement than the single PM. in addition, the maximum magnetic levitation force value firstly increased and then decreased due to current coupling effect weakness by increasing distance of seeds. the calculated analytical levitation force results are not compatible with the experimental results without current coupling effect, but a well agreement is observed when the current coupling effect is taken into account in calculations. Also the MAFI method was tested with different dimensions of superconductors and the obtained results indicated the success of the proposed method. the maximum levitation force values obtained with MAFI method increased with increasing dimensions of HTS and PMs. Thus, one can say that the MAFI method is useful for the levitation force calculations between multi-seeded superconductors and PMGs with different dimensions and for different CHs. As a result, the analytical levitation force values obtained with the MAFI method are agree with the experimental levitation force sufficiently and this method can give fast calculation results without any divergence problem. This method can be thought as an alternative to the numerical calculation methods, having serious divergence problems for much amount and bigger size superconducting samples, therefore it will be useful to clarify bulk superconducting properties as supporter to the experimental studies. (C) 2019 Elsevier B.V. All rights reserved.

Kaynak

Journal of Alloys and Compounds

Cilt

805

Bağlantı

https://doi.org/10.1016/j.jallcom.2019.07.205
https://hdl.handle.net/11436/1389

Koleksiyonlar

  • FEF, Fizik Bölümü Koleksiyonu [355]
  • Scopus İndeksli Yayınlar Koleksiyonu [5994]
  • WoS İndeksli Yayınlar Koleksiyonu [5260]



DSpace software copyright © 2002-2015  DuraSpace
İletişim | Geri Bildirim
Theme by 
@mire NV
 

 




| Yönerge | Rehber | İletişim |

DSpace@RTEÜ

by OpenAIRE
Gelişmiş Arama

sherpa/romeo

Göz at

Tüm DSpaceBölümler & KoleksiyonlarTarihe GöreYazara GöreBaşlığa GöreKonuya GöreTüre GöreDile GöreBölüme GöreKategoriye GöreYayıncıya GöreErişim ŞekliKurum Yazarına GöreBu KoleksiyonTarihe GöreYazara GöreBaşlığa GöreKonuya GöreTüre GöreDile GöreBölüme GöreKategoriye GöreYayıncıya GöreErişim ŞekliKurum Yazarına Göre

Hesabım

GirişKayıt

İstatistikler

Google Analitik İstatistiklerini Görüntüle

DSpace software copyright © 2002-2015  DuraSpace
İletişim | Geri Bildirim
Theme by 
@mire NV
 

 


|| Rehber|| Yönerge || Kütüphane || Recep Tayyip Erdoğan Üniversitesi || OAI-PMH ||

Recep Tayyip Erdoğan Üniversitesi, Rize, Türkiye
İçerikte herhangi bir hata görürseniz, lütfen bildiriniz:

Creative Commons License
Recep Tayyip Erdoğan Üniversitesi Institutional Repository is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 Unported License..

DSpace@RTEÜ:


DSpace 6.2

tarafından İdeal DSpace hizmetleri çerçevesinde özelleştirilerek kurulmuştur.