Abstract
In the design of high-precision machine tools, in order to meet the needs of high-precision machinery industry and high load bearing, usually the use of hydrostatic bearing design is required. Hydrostatic system requires a restrictor as a pressure compensation components. In the hydrostatic sys-tem, the choice of restrictor will affect the performance of the bearing. In the previous studies show the self-compensation compared to the passive restrictors, there is a higher bearing stiffness performance. Therefore, the study of this thesis will analyze the membrane-type restrictor for the linear journal guide. In the past, there were few study in the performance of the bearing with membrane-type restrictor analysis. Therefore, this study will be based on the design parameters of the membrane-type restrictor bearing from the basic formula to calculate by Matlab, the use of different stiffness design parameters, and then get the stiffness performance of the bearing. Using Matlab and excel to solve the recess pressure ratio, and get the pressure and the restrictor flow resistance, then solve the pressure distri-bution for operational condition. By using the result of restrictor flow re-sistance, then design the size of the throttling of the membrane-type re-strictor, the design of regulating gap, regulate surface, and the pressure of the recess to consider the fatigue damage to the restrictor. Finally, the processed membrane-type restrictor is obtained and the experiment is compared with the simulation to verify whether the analysis is in accord-ance with the simulation.