Abstract
In order to meet the needs of high precision and high stiffness, which following the technology improves every day, hydrostatic bearing is usually used in machine tools design. Comparing with the rolling bearing, the structure of hydrostatic bearing is more complicated so that more difficult to analyze its performance of hydrostatic bearing. Besides, the elements of restrictor will affect the performance of the bearing. In the previous studies show the self-compensation have higher bearing stiffness performance than the passive restrictors. Therefore, the study of this thesis will analyze the membrane-type restrictor for the linear journal guide. The structure of the journal bearing will use the multi-recess in design. Because of this design has bigger land area than the multi-pad bearing; consequently, have higher load capacity and stiffness. Nonetheless, each recess pressure will be influenced by the others, so it’s harder to analyze by solving the Reynolds equation with Finite difference method. In the past, the few studies of the membrane restrictor have some difference between the simulation and experiment. In this study, it will discuss how machining leads the errors and correct the errors in the simulation. At the end of this study, the experiment is compared with the simulation to verify whether the analysis is in accordance with the simulation.