employee
Lugansk, Russian Federation
employee
Lugansk, Russian Federation
UDC 621.671
The study objective is to synthesize contactless drives for various purposes, a spindle on gas-static bearings of a grinding machine and a non-stop dynamic pump, and to study their parameters and characteristics. The paper solves the problems of developing a method for synthesizing contactless drives for machine tools for various purposes, performing computer experiments to study the parameters and characteristics of gas-static spindle bearings and hydrodynamic parameters of fluid flow in a rotating pump impeller, and developing a mathematical model for the stability of an annular rotor in a force field. The research is carried out by two theoretical methods – the analytical method according to classical calculation methods and computational computer experiments in CAE-programs of machine-building CAD, and the adequacy of the developed mathematical model of stability of the annular rotor is checked in a field experiment. The novelty of the work lies in the development of a generalized synthesis technique for contactless drives of machine tools, which uses two independent methods of theoretical research, as well as the proposed mathematical model of stability of a rotating annular rotor in a force field. The results of studying the parameters and characteristics of gas-static bearings of a spindle and a centrifugal pump by two methods are presented, and a generalized algorithm for their synthesis is described. Conclusions: a generalized synthesis technique has been developed for contactless drives for various purposes – spindles on gas-static bearings and non-stop dynamic pumps, which are high-speed, energy-efficient and highly reliable due to the actual absence of wear on movable structural elements; the study results of the parameters and characteristics of gas-static spindle bearings and hydrodynamic parameters of fluid flow in a rotating impeller of a non-stop pump are presented, obtained by two methods; a mathematical model of the stability of a rotating annular rotor without mechanical supports has been developed, and its adequacy has been experimentally confirmed by demonstrating stable rotation in the fluid of an annular rotor impeller.
synthesis, drive, method, experiment, mathematical model
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