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Conference papers
Stochastic identification using the maximum likelihood method and a statistical reduction: application to drilling dynamics
Abstract : A drill-string is a slender structure that drills rock to search for oil. The nonlinear interaction between the bit and the rock is of great importance for the drill-string dynamics. The interaction model has uncertainties, which are modeled using the nonparametric probabilistic approach. This paper deals with a procedure to perform the identification of the dispersion parameter of the probabilistic model of uncertainties of a bit-rock interaction model. The bit-rock interaction model is represented by a nonlinear constitutive equation, and the identification of the parameter of this probabilistic model is carried out using the Maximum Likelihood method together with a statistical reduction in the frequency domain using the Principal Component Analysis.
Cited literature [21 references]
https://hal-upec-upem.archives-ouvertes.fr/hal-00692970
Contributor : Christian Soize <>
Submitted on : Tuesday, May 1, 2012 - 6:09:36 PM
Last modification on : Wednesday, February 17, 2021 - 10:42:04 AM
Long-term archiving on: : Thursday, August 2, 2012 - 2:22:48 AM
Contributor : Christian Soize <>
Submitted on : Tuesday, May 1, 2012 - 6:09:36 PM
Last modification on : Wednesday, February 17, 2021 - 10:42:04 AM
Long-term archiving on: : Thursday, August 2, 2012 - 2:22:48 AM
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