Theoretical Disquisition on the Static and Dynamic Characteristics of an Adaptive Stepped Hydrostatic Thrust Bearing with a Displacement Compensator

Stepped hydrostatic thrust bearings used in metal-cutting machines are characterized by high load capacity and damping, which ensure the stable operation of structures. However, comparison with throttle bearings, they have a compliance. It is preferable that, addition to main bearing function, modern has ability provide low (including negative) compliance for implementation an adaptive function order actively compensate deformation machine resilient system, thereby increasing accuracy metalworking. This paper considers design stepped bearing, which, reduce negative values, features technical improvement consisting use active displacement compensator on elastic suspension. In this paper, results mathematical modeling theoretical research stationary non-stationary modes presented. The possibility significant reduction static structure, including shown. was found that provided wide range loads, can be up 80% permissible loads. study dynamic characteristics showed targeted selection parameters optimal performance, able operate stably entire been established stability margin, sufficient its operability when implementing function.