Focusing on the performance of single-orifice aerostatic bearings
the effect of design parameters on load capacity and stiffness was investigated
aiming to optimize the structural design and performance of aerostatic bearings. A parametric model of the single-orifice aerostatic bearing was developed using the finite element method. The influence of factors such as air cavity design
orifice diameter
supply air pressure
air film thickness
orifice depth
air cavity thickness
and air cavity diameter on bearing performance was analyzed. Simulation and test were combined to validate the influence of design parameters on bearing performance. The results indicate that orifice diameter
air film thickness
supply air pressure
and air cavity diameter significantly affect the bearing's load capacity
while orifice depth and air cavity thickness have a smaller impact. Parameters such as orifice diameter
supply air pressure
air cavity diameter
and air cavity thickness positively correlate with load capacity
whereas air film thickness and orifice depth negatively correlate. Additionally
aerostatic bearing with air cavity structures exhibits superior load capacity and stiffness compared to that without air cavities. The consistency between simulation results and test data confirms the reliability and accuracy of the proposed simulation model.
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references
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