Modeling and experimental identification of torsional drill string dynamics under uncertainties
This D.Sc. thesis proposes new perspectives for modeling drill string torsional dynamics under uncertainties. This work develops a novel stochastic hysteretic (nonreversible) bit-rock interaction model. Firstly, a new nominal interaction model, which depends not only on the bit speed, but also on th...
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| Language: | en |
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2018
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| Online Access: | http://www.theses.fr/2018PESC1095/document |