Yıl 2020, Cilt 7 , Sayı 2, Sayfalar 753 - 762 2020-05-31

Nanoparçacık katkılı yağlayıcı akışkanın radyal hidrostatik yatağın yük taşıma kapasitesine etkisi
Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing

Abdurrahim DAL [1] , Mustafa KILIÇ [2] , Ali Özhan AKYÜZ [3] , Azim Doğuş TUNCER [4] , Afşin GÜNGÖR [5]


Hidrostatik yataklar, endüstride, yüksek hızlarda ve ağır yükler altında çalışan şaftların yataklanması için önerilmektedir. Bu yataklarda, sıcaklığın artması akışkanın viskozitesini düşürmektedir ancak, akışkanın soğutulması için yüzeyler arasındaki akışkan, bir pompa ile devridaim ettirilebilir. Fakat yatak-şaft sistemlerinde, yüzeyler arasına akışkan iletilmesi, dolanım kararsızlıklarına ve titreşim problemlerine sebep olduğu bilinmektedir. Bu kararsızlık problemleri şaftın yüksek hızlarda dönüşü esnasında sisteme önemli hasarlar verebilecek kadar tehlikeli olabilir. Bu probleme çözüm önerisi olarak, yağlayıcı akışkanın viskozitesinin sıcaklığa bağlı değişiminin nanoparçacıklarla kontrol edilmes önerilebilir. Bu çalışmada da, hidrostatik yataklarda nanoparçacık ilaveli yağlayıcı akışkan kullanımının yük taşıma kapasitesine etkisi teorik olarak araştırılmıştır. Yüzeyler arasındaki akışkan hareketi Reynolds denklemi ile modellenmiş ve denklem içerisindeki viskozite terimi nanoparçacık özelliklerine bağlı olarak ifade edilmiştir. Bunun ardından, yatak içerisindeki basınç dağılımı Reynolds denkleminin sayısal çözümü ile elde edilmiş ve bu basınç dağılımı kullanılarak, yatağın yük taşıma kapasitesi, farklı nanoparçacık özellikleri için hesaplanmıştır. Yapılan bu çalışmanın sonuçları, nanoparçacık takviyeli yağlayıcı kullanımının hidrostatik yatakların yük taşıma kapasitesini arttırdığını göstermiştir.
Hydrostatic journal bearings are recommended for supporting shafts operating at high speeds and under heavy loads in the industry. In the journal bearings, lubricant viscosity decreases with increasing temperature at high rotation speeds and hence, the fluid between the surfaces should be circulated by means of a pump in order to cool the lubricant. However, lubricant supplying between the surfaces at the high flow rate causes the whirl instability and vibrations problems in the bearing-shaft system. These instability problems give rise to significant damage on the system during operating at the high speeds and under the heavy loads. As a solution of this problem, it could be suggested to control the variation of the lubricant viscosity with respect to the temperature by adding nanoparticle. In the present work, the effects of the lubricant with nanoparticle additives on the load performance of a hydrostatic journal bearing are theoretically investigated. The fluid film flow between the bearing and rotor surfaces are modelled with Reynolds equation and viscosity term in Reynold’s equation is defined as a function which is depends on the nanoparticle properties. Then, the pressure distribution of the bearing is obtained with numerically solving the Reynolds equation and the load capacity is calculated for different nanoparticle parameters with using this pressure distribution. The results show that the usage of the lubricant with nanoparticle increase the load performance of the hydrostatic journal bearing.
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Birincil Dil en
Konular Mühendislik
Bölüm Makaleler
Yazarlar

Orcid: 0000-0002-7012-2148
Yazar: Abdurrahim DAL
Kurum: ADANA BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ
Ülke: Turkey


Orcid: 0000-0002-8006-149X
Yazar: Mustafa KILIÇ
Kurum: ADANA BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ
Ülke: Turkey


Orcid: 0000-0001-9265-7293
Yazar: Ali Özhan AKYÜZ
Kurum: ADANA BİLİM VE TEKNOLOJİ ÜNİVERSİTESİ
Ülke: Turkey


Orcid: 0000-0002-8098-6417
Yazar: Azim Doğuş TUNCER (Sorumlu Yazar)
Kurum: Mehmet Akif Ersoy Üniversitesi, Mühendislik Mimarlık Fakültesi, Enerji Sistemleri Mühendisliği Bölümü
Ülke: Turkey


Orcid: 0000-0002-4245-7741
Yazar: Afşin GÜNGÖR
Kurum: AKDENIZ UNIVERSITY
Ülke: Turkey


Tarihler

Başvuru Tarihi : 9 Şubat 2020
Kabul Tarihi : 8 Nisan 2020
Yayımlanma Tarihi : 31 Mayıs 2020

Bibtex @araştırma makalesi { ecjse686845, journal = {El-Cezeri Journal of Science and Engineering}, issn = {2148-3736}, eissn = {2148-3736}, address = {}, publisher = {Selami ŞAŞMAZ}, year = {2020}, volume = {7}, pages = {753 - 762}, doi = {10.31202/ecjse.686845}, title = {Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing}, key = {cite}, author = {Dal, Abdurrahim and Kılıç, Mustafa and Akyüz, Ali Özhan and Tuncer, Azim Doğuş and Güngör, Afşin} }
APA Dal, A , Kılıç, M , Akyüz, A , Tuncer, A , Güngör, A . (2020). Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing . El-Cezeri Journal of Science and Engineering , 7 (2) , 753-762 . DOI: 10.31202/ecjse.686845
MLA Dal, A , Kılıç, M , Akyüz, A , Tuncer, A , Güngör, A . "Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing" . El-Cezeri Journal of Science and Engineering 7 (2020 ): 753-762 <https://dergipark.org.tr/tr/pub/ecjse/issue/54682/686845>
Chicago Dal, A , Kılıç, M , Akyüz, A , Tuncer, A , Güngör, A . "Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing". El-Cezeri Journal of Science and Engineering 7 (2020 ): 753-762
RIS TY - JOUR T1 - Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing AU - Abdurrahim Dal , Mustafa Kılıç , Ali Özhan Akyüz , Azim Doğuş Tuncer , Afşin Güngör Y1 - 2020 PY - 2020 N1 - doi: 10.31202/ecjse.686845 DO - 10.31202/ecjse.686845 T2 - El-Cezeri Journal of Science and Engineering JF - Journal JO - JOR SP - 753 EP - 762 VL - 7 IS - 2 SN - 2148-3736-2148-3736 M3 - doi: 10.31202/ecjse.686845 UR - https://doi.org/10.31202/ecjse.686845 Y2 - 2020 ER -
EndNote %0 El-Cezeri Journal of Science and Engineering Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing %A Abdurrahim Dal , Mustafa Kılıç , Ali Özhan Akyüz , Azim Doğuş Tuncer , Afşin Güngör %T Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing %D 2020 %J El-Cezeri Journal of Science and Engineering %P 2148-3736-2148-3736 %V 7 %N 2 %R doi: 10.31202/ecjse.686845 %U 10.31202/ecjse.686845
ISNAD Dal, Abdurrahim , Kılıç, Mustafa , Akyüz, Ali Özhan , Tuncer, Azim Doğuş , Güngör, Afşin . "Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing". El-Cezeri Journal of Science and Engineering 7 / 2 (Mayıs 2020): 753-762 . https://doi.org/10.31202/ecjse.686845
AMA Dal A , Kılıç M , Akyüz A , Tuncer A , Güngör A . Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing. ECJSE. 2020; 7(2): 753-762.
Vancouver Dal A , Kılıç M , Akyüz A , Tuncer A , Güngör A . Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing. El-Cezeri Journal of Science and Engineering. 2020; 7(2): 753-762.
IEEE A. Dal , M. Kılıç , A. Akyüz , A. Tuncer ve A. Güngör , "Effects of lubricant fluid with nanoparticle additive on the load capacity of a hydrostatic journal bearing", El-Cezeri Journal of Science and Engineering, c. 7, sayı. 2, ss. 753-762, May. 2020, doi:10.31202/ecjse.686845