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Information × Registration Number 0200U003087, 0197U008204 , R & D reports Title Development of the theory of dynamic processes and substantiation of rational kinematics parameters of drilling complexes for a shaft and large-holes boring popup.stage_title Head Pettik Yu.V., Registration Date 04-04-2000 Organization Donetsk state technical university popup.description2 Object of research is the dynamic processes and kinematic parameters of drilling systems. The purpose of work is the creation of theoretical basics of definition of rational drilling practices for mining wells bore and kinematic parameters of the tool. The substantiation of development is the providing of increase intensification of rock breaking by drilling systems. Summarized result is techniques of stress state dynamics calculation of drilling systems and optimization of kinematic parameters. Field of application is the coal industry Product Description popup.authors popup.nrat_date 2020-04-03 Close