Parameter Optimization and Comparative Analysis of Pinhole Throttling Hydrostatic Bearing
[Purposes]Taking the pinhole throttling hydrostatic bearing as the research object,the struc-tural parameters are optimized,and the bearing capacity and stiffness before and after optimization are compared and analyzed.[Methods]The structural parameters of the bearing were optimized according to the maximum bearing capacity optimization criterion by orthogonal test,and the bearing capacity and stiffness of the bearing before and after optimization were analyzed by Fluent simulation calculation.[Findings]The optimal combination was as follows:average oil film thickness was h0=20 μm,orifice di-ameter d0=0.35 mm,distance from orifice to shaft end face l0=5.1 mm,and number of single row orifice n=10.[Conclusions]The bearing capacity and stiffness of the optimized pinhole throttling hydrostatic bearing have been improved to some extent.
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