QIU Dezhong,LEI Weining,XUE Yaping.Design and performance analysis of small hole throttling aerostatic bearings[J].Journal of Mechanical Strength,DOI:10.16579/j.issn.1001.9669.XXXX.XX.001.
QIU Dezhong,LEI Weining,XUE Yaping.Design and performance analysis of small hole throttling aerostatic bearings[J].Journal of Mechanical Strength,DOI:10.16579/j.issn.1001.9669.XXXX.XX.001.DOI:
Design and performance analysis of small hole throttling aerostatic bearings
Focusing on the performance of single-throttle-orifice aerostatic bearings
this study investigates the effects of design parameters on load capacity and stiffness
aiming to optimize the structural design and performance of aerostatic bearings. A parametric model of the single-throttle-orifice aerostatic bearing was developed using the finite element method. The influence of factors such as air cavity design
throttle orifice diameter
supply air pressure
air film thickness
throttle orifice depth
air cavity thickness
and air cavity diameter on bearing performance was analyzed. Simulation and experimental testing were combined to validate the influence of design parameters on bearing performance. The results indicate that throttle orifice diameter
air film thickness
supply air pressure
and air cavity diameter significantly affect the bearing's load capacity
while throttle orifice depth and air cavity thickness have a smaller impact. Parameters such as throttle orifice diameter
supply air pressure
air cavity diameter
and air cavity thickness positively correlate with load capacity
whereas air film thickness and throttle orifice depth negatively correlate. Additionally
aerostatic bearing with air cavity structures exhibit superior load capacity and stiffness compared to those without air cavities. The consistency between simulation results and experimental data confirms the reliability and accuracy of the proposed simulation model.
关键词
小孔节流气浮垫有限元方法承载能力刚度
Keywords
Small orifice throttlingAir floatation matFinite element methodLoad-carrying capacityStiffness
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