Results 11 to 20 of about 896,648 (115)

Development of a Mathematical Model of Operation Reliability of Mine Hoisting Plants

Mathematics
The work analyzes the performance assurance of mine hoisting machines, including the problem of the quality of performance of the functions. The quality of functioning allows evaluation of a set of properties of the process of lifting loads, designed to ...
Pavel V. Shishkin, Boris V. Malozyomov, Nikita V. Martyushev, Svetlana N. Sorokova, Egor A. Efremenkov, Denis V. Valuev, Mengxu Qi   +6 more
doaj   +2 more sources

Method of combating fatigue destruction of steel structures of mine hoisting machines [PDF]

Metalurgija, 2020
The article presents the information of the identified defects of fatigue failure of steel structures of the brake mechanism of mine cable hoisting machines used to transport metallurgical coke from the mine to the surface.
A. D. Mekhtiyev, F. N. Bulatbaev, A. V. Taranov, A. V. Bashirov, N. V. Mutovina, A. D. Alkina   +5 more
doaj   +2 more sources

Use of reinforcing elements to improve fatigue strength of steel structures of mine hoisting machines (MHM) [PDF]

Metalurgija, 2020
The article discusses the issues of fatigue fracture of steel structures and the method of increasing their strength through the use of reinforcing elements.
A. D. Mekhtiyev, F. N. Bulatbayev, A. V. Taranov, A. V. Bashirov, Ye. G. Neshina, A. D. Alkina   +5 more
doaj   +3 more sources

Justification of the algorithm for selecting parameters of composite linings for drums of mine hoisting machines [PDF]

, 2023
Мета. Виконати аналіз напружено-деформованого стану в циліндричних барабанах шахтових підіймальних машинах. Вивчити вплив параметрів жорсткості еластичного футерування, виконаного з композитного матеріалу, та лобовини барабана на розподіл напружень в ...
Кухар, В. Ю., Анциферов, О. В., Полушина, М. В., Москальова, Т. В., Жупієв, О. Л., Заболотний, К. С., Панченко, О. В.   +6 more
core   +1 more source

Investigation of Dynamic Load in Superdeep Mine Hoisting Systems Induced by Drum Winding

, 2021
Blair mine hoists powered by drum winding are a key equipment in the transportation of a superdeep mine shaft. The step changes of hoisting velocity and acceleration caused by coil and layer crossover of rope winding on the LeBus drum, which will excite ...
Xiaojie Deng, Tong Xu, Jiannan Yao, Chi Ma   +3 more
core   +1 more source

Design of health condition monitoring system of mine hoisting equipment

, 2018
In view of problem that health condition monitoring system of existing mine hoist equipment uses a single signal for condition monitoring which easily leads to misjudgment, health condition monitoring system of mine hoisting equipment based on signal ...
CHANG Yonggen, CHEN Xiao, JIANG Fan
core   +1 more source

Improving the method of controlling the stress-strain state of steel structures of electromechanical systems

Metalurgija, 2023
The article presents the results of improving the method of controlling the stress-strain state of steel structures of mine hoisting machines, which can be attributed to electromechanical systems.
A. B. Zhantlessova, S. K. Zhumazhanov, T. B. Akimzhanov, Y. Zh. Sarsikeyev, B. B. Issabekova, Zh. B. Issabekov, A. D. Mekhtiyev, A. D. Alkina   +7 more
doaj  

What Was ‘Middle Australia’? Social Categorisation and Political Positioning in the Late‐20th Century

Australian Journal of Politics &History, EarlyView.
ABSTRACT ‘Middle Australia’ became a ubiquitous term of social categorisation and political positioning during the latter decades of the 20th century. This article examines how this concept was variously used in the metropolitan print media in the guises of the Sydney Morning Herald and The Age of Melbourne, including in their reporting of federal and ...
Chris Beer
wiley   +1 more source

Using optical fibers (OF) to control the stress-strain state of steel structures subject to fatigue failure

Metalurgija, 2022
The article presents the results related to developing and practical testing the method of monitoring the stress strain state of steel structures of mine hoisting machines.
V. V. Yugay, A. D. Mekhtiyev, G. S. Ozhigin, R. Zh. Aimagambetova, Y. G. Neshina, Y. Zh. Sarsikeyev   +5 more
doaj  

The specifics of non‐routine task changes: A granular approach

Contemporary Economic Policy, EarlyView.
Abstract This paper estimates granular specific non‐routine tasks and examines employment reallocation across those tasks in the United States. Employment shifts into decision‐making, technology, and information‐related tasks account for 90% of high‐wage employment growth.
Carol A. Scotese
wiley   +1 more source