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Published in 2020 at "Journal of The Brazilian Society of Mechanical Sciences and Engineering"
DOI: 10.1007/s40430-020-02680-0
Abstract: A lumped parameter vibro-impact model is proposed to describe the axial dynamics of a vibration-assisted drilling tool prototype, developed to improve the drilling efficiency in hard-rock drilling applications. The purpose of this work is twofold:…
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Keywords:
assisted drilling;
impact;
model;
drilling tool ... See more keywords
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Published in 2022 at "Science Progress"
DOI: 10.1177/00368504221086698
Abstract: Aiming at the problem of stick-slip vibration caused by sudden drilling resistance torque during drilling in coal seam with gangue, the drilling tool dynamic model with two degree of freedom was established based on the…
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Keywords:
vibration;
coal seam;
drilling tool;
seam gangue ... See more keywords