- 1. Modeling of drilling tool vibration in the process of drilling blast wells
- (Content №5 2024)
- ... (2016). Drill string dynamic: Improving the drilling performance by study the resonance of the experimental drill string system using 2 contact points of friction force of breaking system. 2016 7th International ...
- Created on 29 October 2024
- 2. Justification of the criterion for optimal control of the self-grinding process of ores in drum mills
- (Content №4 2024)
- ... the amount of material and the coefficient of friction. It is theoretically justified that in the case of load fluctuations, the work of friction forces and, therefore, the process of material destruction ...
- Created on 28 August 2024
- 3. Evaluation of coal mines’ rock mass gas permeability in the equivalent stress zone
- (Content №5 2023)
- ... friction forces at the motion of various media and flows. Geotechnical Mechanics, 4, 50-65. ISSN 1025-6415. 4. Bokyi, B. V., Filimonov, P. E., & Irisov, S. H. (2012). Study of gas flow physics to ...
- Created on 27 October 2023
- 4. Forceful interaction of the casing string with the walls of a curvilinear well
- (Content №4 2022)
- ... account the walls reaction and the friction forces that create longitudinal bend during the columns movement. The system of differential equations of equilibrium was supplemented by Eulers kinematic equation. ...
- Created on 29 August 2022
- 5. Some features of drilling technology with PDC bits
- (Contens №3 2020)
- ... L., & Dourfaye, A. (2016). Independent analyses of cutting and friction forces applied on a single polycrystalline diamond compact cutter. International Journal of Rock Mechanics and Mining Sciences, ...
- Created on 02 July 2020
- 6. Deformation of the long casing string on centralizers in the process of its installation in a horizontal well
- (Geotechnical and mining mechanical engineering, machine building)
- Authors: I.I.Paliichuk, Cand. Sc. (Tech.), Assoc. Prof., orcid.org/0000-0002-8443-2702, Ivano-Frankivsk National Technical University of Oil and Gas, Ivano-Frankivsk, Ukraine; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. ...
- Created on 26 October 2019
- 7. Dependence of the drilling speed on the frictional forces on the cutters of the rock-cutting tool
- (Mining)
- ... vertical friction force. It has been revealed that as the width of the tool is reduced, the axial load losses increase due to friction forces, and the deepening per rotation and the drilling speed decrease ...
- Created on 08 March 2019
- 8. Study of digging machine flat element loading in clay solution
- (Geotechnical and mining mechanical engineering, machine building)
- Authors: Zh.Zh.Zhunusbekova, Karaganda State Technical University, Karaganda, Kazakhstan A.S.Kadyrov, Dr. Sci. (Tech.), Professor, Karaganda State Technical University, Karaganda, Kazakhstan ...
- Created on 22 June 2016
- 9. Experimental determination of the frictional properties of the flexible body sliding over a block
- (Geotechnical and mining mechanical engineering, machine building)
- ... sliding over the fixed block was established. Originality. For the first time, the two-parameter linear dependence of the friction force and inversely proportional dependence of the coefficient of ...
- Created on 02 April 2016
- 10. Sectional shape of a flexible body sliding over a fixed block
- (Geotechnical and mining mechanical engineering, machine building)
- ... derived the differential equation of equilibrium of the friction force, tension force of the flexible body and obtained a new solution of the classical Euler problem about a flexible body sliding over ...
- Created on 04 February 2016
- 11. Account taken of channel-length distribution of static pressure in steam-water turbine when testing its energy parameters
- (Geotechnical and mining mechanical engineering, machine building)
- ... has been developed. The Bernoulli equation which takes into account centrifugal and friction forces has been used in calculation. On the basis of the calculations it has been plotted the graph of channel-length ...
- Created on 26 December 2012
- 12. Effect of centrifugal forces of a flexible body on traction friction implementation
- (Mining)
- ... forces of the flexible body sliding over a fixed block on the friction force between them. The influence of centrifugal forces of the flexible body is usually described by the Euler's law of flexible ...
- Created on 08 November 2012