Results 61 to 70 of about 5,025 (158)

New technologies of conclusion and control of the state of mine claotype tracks [PDF]

open access: yes, 2017
Проведено аналіз сучасного стану рейкових колій вугільних шахт та виділено основні чинники, що впливають на їх стабільність. Запропоновані технічні рішення, що дозволять підвищити термін служби елементів верхньої будови шляху, та ...
Bartashevskyi, S.   +17 more
core  

Comparative Analysis of Mine Shaft Hoisting Systems' Brake Temperature Using Finite Element Analysis (FEA). [PDF]

open access: yesMaterials (Basel), 2022
Popescu FD   +5 more
europepmc   +1 more source

The stress-strain state of the flat rope caused by breaks of tractive elements and design of hoisting engine drum [PDF]

open access: yes, 2017
Встановлені аналітичні залежності для визначення напружено-деформованого стану плоского гумотросового каната підйомної машини з урахуванням відхилення твірної барабана від прямої лінії та розриву троса каната.
Belmas, I.   +6 more
core  

Retrospective assessment of occupational disease trends in Russian Arctic apatite miners. [PDF]

open access: yesInt J Circumpolar Health, 2022
Syurin SA   +3 more
europepmc   +1 more source

The Hoisting Machines as Source of Higher Harmonics in Underground Mines

open access: yes
The chapter describes the structure of drive systems used in hoisting machinery of underground mines. These devices, due to their special application and power, are characterized by special traits. The most commonly used systems with DC reciprocating motors are described. The so-called complex (multi-pulse) converters are used in those solutions.
openaire   +1 more source

Prediction of Material Failure Time for a Bucket Wheel Excavator Boom Using Computer Simulation. [PDF]

open access: yesMaterials (Basel), 2021
Andraș A   +5 more
europepmc   +1 more source

Advanced Static Var Generator in the Reactive Power Automatic Compensation System of an Underground Mine with a Thyristor Hoisting Machine

open access: yesEnergies
In industrial plants with dynamically varying load profiles, the problem of increased charges for over-contracted reactive power consumption is very common. To eliminate these charges, reactive power compensation systems are used. This article presents a case study of an automatic reactive power compensation system in an underground mine where a ...
Marian Hyla, Andrzej Latko
openaire   +2 more sources

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