کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10384636 881558 2005 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Three-dimensional hydrodynamic analysis of a journal bearing with a two-component surface layer
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی شیمی کلوئیدی و سطحی
پیش نمایش صفحه اول مقاله
Three-dimensional hydrodynamic analysis of a journal bearing with a two-component surface layer
چکیده انگلیسی
The article presents a three-dimensional hydrodynamic analysis of a bearing with a two-component surface layer journal. This kind of bearing is characterized by an experimentally proved susceptibility to oil contaminants which is five times lower than that of a typical bearing. The oil flow was described with the Navier-Stokes and energy equations. The equation system was solved by the finite element method. The distributions of pressure, temperature and oil flow velocity were determined. The computation results made it clear that a journal with a two-component surface layer causes a reduction in the bearing load capacity for high eccentricity ratio values (0.7-0.9). Besides, contrary to a typical bearing, considerable velocity changes in oil flow in all directions (circumferential, radial and axial) were observed in the bearing under consideration. Particularly great velocity changes occurred in the radial direction. However, no essential changes were found in the temperature of the oil film and in the attitude angle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Tribology International - Volume 38, Issue 2, February 2005, Pages 97-104
نویسندگان
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