Results 1 to 10 of about 19,772,092 (306)

Physical-mathematical model of ground adhesion on the surface of the excavating parts of earthmoving machines [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2021
A large number of domestic and foreign scientists were engaged in the wear of the surfaces of the excavating parts of earthmoving machines during their interaction with the ground, as well as the problem of the adhesion of soils on the surface of the ...
Sladkova L.A., Grigorev P.A.
doaj   +2 more sources

Mathematical-physical model of solving inventive problems [PDF]

open access: yesFME Transactions, 2021
The spatial-temporal LT-contradiction matrix is an inventology tool that enables exact calculations of certain parameters in an engineering system through mathematical-physical modeling.
Rajić Dušan S.
doaj   +1 more source

Theoretical researches of a car wheel with a traction compensator

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2021
The rolling process of the wheel drive is accompanied by the loading of the wheel drive by the force of gravity, which leads to compression and stretching of the tire during its deformation.
Юрій Миколайович Петрик   +1 more
doaj   +5 more sources

Theoretical elements of energy modular layout of automobile system

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2021
The article presents a physical and mathematical model of the energy-modular configuration of a vehicle. A technique for modeling the motion of an automobile system with main connections based on the Lagrange equations is considered.
Леонід Миколайович Петров   +2 more
doaj   +5 more sources

Application of elements of the theory of unaccounted coriolis forces in the process of rolling a wheeled propeller

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2019
The working process of rolling the wheel propulsion is accompanied by compression and extension of the tire during its deformation. To improve the operability of mobile energy, much attention is paid to the problem of increasing the efficiency of ...
Леонід Миколайович Петров   +1 more
doaj   +5 more sources

Territorial physical and mathematical model of stormwater management [PDF]

open access: yesE3S Web of Conferences, 2023
Climate change reduction and adaptation policies are being implemented worldwide through stormwater management in urban areas. Rational use of stormwater could influence the decrease of the "heat island" effect and "cool down" cities. The authors plan to
Feofanova S.S., Zaykova E.Yu.
doaj   +1 more source

Charged strange stellar model describing by Tolman V metric

open access: yesResults in Physics, 2021
This paper deals with the existence of a compact stellar object, precisely strange (quark) star, in the framework of Einstein’s General Theory of Relativity with Tolman V metric potential, which is one of the simplest forms of potential among his ...
M.K. Jasim   +5 more
doaj   +1 more source

Physical and mathematical model of working process of jet ejector [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2021
A refined physical model of the jet ejector working process has been compiled. On the basis of the refined physical model, a mathematical model has been developed that takes into account the exchange of work and heat between the ejected and ejected ...
V. I. Kuznetsov   +2 more
doaj   +1 more source

Thermochemical Performance Analysis of the Steam Reforming of Methane in a Fixed Bed Membrane Reformer: A Modelling and Simulation Study

open access: yesMembranes, 2020
Pd-based membrane reformers have been substantially studied in the past as a promising reformer to produce high-purity H2 from thermochemical conversion of methane (CH4).
João Paulo Fernando de Medeiros   +3 more
doaj   +1 more source

Electric heater mathematical model for cyber-physical systems

open access: yesSistemnì Doslìdženâ ta Informacìjnì Tehnologìï, 2021
The article discusses the heat and mass transfer dynamic model for an electric heater with lumped parameters, which allows transient processes simulation for the main influences. The proposed model is recommended to be used in cyber-physical systems for
Nataliya Pankratova, Igor Golinko
doaj   +1 more source

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