Dynamics of the hydromechanical system of a production machine with an adaptive tool-feeding drive

Abstract

The article investigates a hydro-mechanical system of regular feed and principal movement of a production machine (as illustrated by a mobile drilling rig).We study the behavior of a dynamic hydro-mechanical system under varying external processes of well drilling. The task of maintaining the optimal drilling process is solved by using an original design (multivariate sensor, additional hydraulic lines linking the principal movement and the tool-feeding movement). Travel time characteristics and dynamic behavior of the regular feed are provided with one power plant. A dual-mass mathematical model of a dynamic multi-mass hydro-mechanical system (MHS) is proposed in Matlab Simulink software environment. The model contains an analytical description of mechanical, hydraulic and control subsystems and is implemented by subsequent complications of the basic model starting from a single-mass linear model to a nonlinear dual- mass one with active submodels of all subsystems. The application of the model makes it possible to study the duty cycle of a multi-branch MHS, while maintaining the consistency of the results of solutions that are getting increasingly complicated.