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Radyal basınçlı hava yataklarında yüzey pürüzlülüğünün yatak-rotor sisteminin yük taşıma kapasitesine etkisi

Effect of surface roughness of a radial aerostatic bearing on the load carrying capacity of a rotor-bearing system

Journal Name:

  • Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

Publication Year:

  • 2017
DOI: 
10.5505/pajes.2017.03274

Key Words:

Keywords (Original Language):

Author NameUniversity of AuthorFaculty of Author
Abstract (2. Language): 
In this study, effects of surface roughness on the load carrying capacity of the rotor-bearing system supported by externally pressurized air bearing are theoretically investigated. Air flow between rotor and bearing surfaces, is modeled using Reynold's equation. In this model, film thickness function which is defined gap between rotor and bearing, is described with surface roughness. In order to obtained pressure distribution between rotor and bearing surface, Reynold's equation is solved with Differential Transform & Finite Difference hybrid numerical solution method and load carrying capacities is calculated. In order to analyze effect of the surface roughness on the load carrying capacity of rotor-bearing system supported by externally pressurized air bearing, an algorithm is developed in Matlab environment and it is simulated for different bearing geometric parameters and rotor angular velocities.
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Abstract (Original Language): 
Bu çalışmada, yüzey pürüzlülüğünün, basınçlı hava yatağı ile desteklenmiş bir yatak-rotor sisteminin yük taşıma kapasitesine olan etkileri teorik olarak araştırılmıştır. Bu kapsamda yatak ve rotor yüzeyleri arasındaki havanın akışı, Reynold's denklemi ile modellenmiştir. Bu model içerisindeki, yatak ve rotor yüzeyleri arasındaki mesafeyi tanımlayan film kalınlık fonksiyonu yüzey pürüzlülüğü ile birlikte ifade edilmiştir. Reynold's denklemi Diferansiyel Transform& Sonlu Farklar hibrid sayısal çözümü kullanılarak çözdürülmüş yüzeyler arasındaki basınç dağılımları ve yatak yük taşıma kapasiteleri hesaplanmıştır. Yüzey pürüzlülüğünün, basınçlı hava yatakları ile desteklenmiş bir yatak-rotor sisteminin yük taşıma kapasitesi üzerindeki etkilerinin araştırılması için, Matlab ortamında bir algoritma geliştirilmiş ve basınçlı hava yatağının geometrik parametreleri ve rotorun açısal hızı için benzetimler yapılmıştır.
FULL TEXT (PDF): 
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  • Turkish

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