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A hybrid fuzzy control scheme was applied to improve the rigidity of hydrostatic thrust bearing. The bearing oil film control was realized by coupling oil film thickness of four controllable chambers. The chamber flow can be regulated by electro hydraulic servo valve-control variable pump according to the surface roughness, load, cutting force, and thermal effects of worktable. The nonlinear hybrid...
A hydraulic servo system has nonlinearity and uncertain dynamics, so its theoretical mathematical model can't sufficiently represent the practical system. The identification experiments were carried out in hardware-in-the-loop simulation environment and the identification model was acquired. In order to improve the tracking performance of the force servo system a new nonlinear hybrid controller was...
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