کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
797004 | 1466607 | 2013 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Large eddy simulation of vortex shedding and pressure fluctuation in aerostatic bearings
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In aerostatic bearings, high speed air flow may induce small vibration, which has been harmful to the improvement of moving and positioning accuracy of aerostatically supported devices in ultra-precision applications. In this paper, the transient flow field in the aerostatic bearing is numerically investigated using the large eddy simulation method. Turbulent structures are studied and vortex shedding phenomenon is discovered in the bearing recess. Our computational results demonstrate that vortex shedding causes pressure fluctuation in the bearing clearance. Relationship between pressure fluctuation and bearing vibration is established based on our simulation results and experimentally measured vibration strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Fluids and Structures - Volume 40, July 2013, Pages 42–51
Journal: Journal of Fluids and Structures - Volume 40, July 2013, Pages 42–51
نویسندگان
Jincheng Zhu, Han Chen, Xuedong Chen,