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putin IS MURDERER

Please use this identifier to cite or link to this item: https://oldena.lpnu.ua/handle/ntb/23681
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dc.contributor.authorPukach, P.-
dc.contributor.authorKuzio, I.-
dc.contributor.authorNytrebych, Z.-
dc.date.accessioned2014-02-26T15:01:21Z-
dc.date.available2014-02-26T15:01:21Z-
dc.date.issued2013-
dc.identifier.citationPukach P. Influence of some speed parameters on the dynamics of nonlinear flexural vibrations of a drill column / P. Pukach, I. Kuzio, Z. Nytrebych // Econtechmod : an international quarterly journal on economics in technology, new technologies and modelling processes. – Lublin ; Rzeszow, 2013. – Volum 2, number 4. – P. 61–66. – Bibliography: 20 titles.uk_UA
dc.identifier.urihttps://ena.lpnu.ua/handle/ntb/23681-
dc.description.abstractWe investigate the influence of the motion of fluid flushing the cutter of a well drilling column, and the angular rotational velocity upon dynamic characteristics of its flexural vibrations. We take into account the nonlinear elastic features of column material. As a base of the research we took the Galerkin method and the Van der Pol method. Combining those two methods made possible to obtain the relations describing the main parameters of the dynamical process in both nonresonance and resonance case.uk_UA
dc.language.isoenuk_UA
dc.publisherНаціональний університет "Львівська політехніка"uk_UA
dc.subjectnonlinear elastic propertiesuk_UA
dc.subjectmathematical modeluk_UA
dc.subjectGalerkin methoduk_UA
dc.subjectVan der Pol methoduk_UA
dc.subjectresonanceuk_UA
dc.titleInfluence of some speed parameters on the dynamics of nonlinear flexural vibrations of a drill columnuk_UA
dc.typeArticleuk_UA
Appears in Collections:Econtechmod. – 2013. – Vol. 2, No. 4

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