- 21. Experimental and theoretical studies on the operating parameters of hydromechanical drilling
- (Content №1 2022)
- ... Xue, Baolin Liu, Lixin Li, Fangtao Li, Kai Zhang & Yanbin Zang (2020). Experimental measurement on friction performance of PDC bearings for oil drilling under different working conditions. Measurement, ...
- Created on 25 February 2022
- 22. Feasibility study of exploiting gearbox oil temperature of wind turbine for improving a heat pump water heater in cold areas
- (Content №2 2021)
- ... conversion of mechanical energy harvested from the wind speed into thermal energy by exploiting only the friction phenomenon inside the gearbox of the wind turbine by completely dispensing with solar collectors ...
- Created on 29 April 2021
- 23. Shallow tunnel face stability analysis using finite elements
- (Content №1 2021)
- ... the applied face pressure until the face is collapsed. The second calculation method involves the Phi-c (the angle of internal friction and bonding) reduction method, which is based on calculating the ...
- Created on 05 March 2021
- 24. Dynamic loads in self-aligning gear transmissions of heavy loaded machines
- (Content №1 2021)
- ... gears including sliding friction. Journal of Mechanical Science and Technology, 29, 4563-4573. https://doi.org/10.1007/s12206-015-1001-5. 3. Parey, A., Jain, N., & Koria, S. (2014). Failure analysis ...
- Created on 05 March 2021
- 25. A deformation mode in a cold rolling condition to provide the necessary texture of the Ti-3Al-2.5V alloy
- (Content №1 2021)
- ... Patsera, S. (2019). Interrelation between shearing angles of external and internal friction during chip formation. Solid State Phenomena, 291, 193-203. https://doi.org/10.4028/www.scientific.net/SSP.291.193. ...
- Created on 05 March 2021
- 26. Direct method of studying heat exchange in multilayered bodies of basic geometric forms with imperfect heat contact
- (Content №1 2021)
- ... 3. Topchevska, K. (2017). Influence of friction power on temperature stresses during single braking. Physicochemical Mechanics of Materials, 53(5), 66-72. 4. Yang, X.J. (2017). A new integral transform ...
- Created on 05 March 2021
- 27. The method for determining the parameters of the diagrams of a truncated-wedge destruction of cylindrical samples of rocks
- (Content №1 2021)
- ... properties the shear resistance limit, internal and external friction coefficients and elastic modulus. The method is based on the improved Coulomb strength criterion, supplemented by the parameters of ...
- Created on 05 March 2021
- 28. Effect of alloying heat-resistant packing coatings on their tribotechnical, physical and mechanical properties
- (Content №6 2020)
- ... Natsionalnoho Hirnychoho Universytetu. 2020, (6): 041 - 047 https://doi.org/10.33271/nvngu/2020-6/041 Abstract: Purpose. To determine the effect of alloying nickel-based packing coatings on friction, wear ...
- Created on 22 December 2020
- 29. Enhancing efficiency of air distribution by swirled-compact air jets in the mine using the heat utilizators
- (Contens №5 2020)
- ... Stabnikov, A. (2018). On the skin friction due to turbulence in ducts of various shapes. Journal of Fluid Mechanics, 838, 369-378. https://doi.org/10.1017/jfm.2017.911. 14. Rumsey, C. L. (2018). The ...
- Created on 30 October 2020
- 30. Rationale of use of guanidine surfactants for fire extinguishing in natural ecosystems
- (Contens №4 2020)
- ... compared to the SFPM foaming agent under these technological conditions, which is possibly associated with a decrease in energy dissipation and loss of friction of the turbulent flow. Originality. ...
- Created on 30 August 2020
- 31. Impact of water saturation effect on sedimentary rocks strength properties
- (Contens №4 2020)
- ... friction φ for soft loamy rocks are obtained depending on water saturation. Originality. It was established that the relative variation of the uniaxial compressive strength increases with increasing ...
- Created on 30 August 2020
- 32. 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
- 33. Asymptotic method in two-dimensional problems of electroelasticity
- (Content №1 2020)
- ... Technical Physics, 59, 1036-1048. https://doi.org/10.1134/S0021894418060093. 9. Jie Su, Liao-Liang Ke, & Yue-Sheng Wang (2016). Axisymmetric frictionless contact of a functionally graded piezoelectric ...
- Created on 10 March 2020
- 34. Mathematical model of oscillations of a drill tool with a drill bit of cutting-scraping type
- (Content №1 2020)
- ... the forces of cutting and friction on the bit from the second derivatives of the independent generalized coordinates of the mechanical system over time, as well as the relationship between the generalized ...
- Created on 10 March 2020
- 35. Model of surface roughness in turning of shafts of traction motors of electric carst
- (Content №1 2020)
- ... of External and Internal Friction During Chip Formation. Solid State Phenomena, (291), 193-203. https://doi.org/10.4028/www.scientific.net/SSP.291.193. 8. Strelbitsky, V. V., & Surkov, Y. E. ...
- Created on 10 March 2020
- 36. Mathematical model of heat processes in terms of gas-saturated rock breaking by means of shearers and tunneling machines
- (Content №1 2020)
- ... текст / full article Abstract: Purpose. To evaluate the effect of mining and technical factors on friction combustion of methane-air mixtures on the basis of a mathematical model of ...
- Created on 10 March 2020
- 37. On determining productive capacity of EV traction battery repair area
- (Power Supply Technologies)
- ... friction properties of wheel – rail pair in the contact area. Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, 2, 46-52, DOI: 10.29202/nvngu/2018-2/7. 3. Raksha, S. V., Anofriev, P. G., ...
- Created on 26 October 2019
- 38. Mathematical modeling in the calculation of reinforcing elements
- (Geotechnical and mining mechanical engineering, machine building)
- ... problem was investigated, for which the asymptotic method was used. The solution takes into account the friction that occurs in the interaction process between the rigid stamp and the elastic plate. The ...
- Created on 26 October 2019
- 39. Substantiation of rational drive parameters for reliable operation of heavy-loaded mechanisms
- (Geotechnical and mining mechanical engineering, machine building)
- ... Natsionalnohо Hirnychoho Universytetu, 3, 68-73. DOI: 10.29202/nvngu/2019-3/6. 10. Ziborov, K., & Fedoriachenko, S. (2014). The frictional work in pair wheel-rail in case of different structural ...
- Created on 26 October 2019
- 40. 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)
- ... disregarding the axial forces of friction. Our system of algebraic equations determines the deformation and force parameters at the sections between the supports based on the equations of the compatibility ...
- Created on 26 October 2019