Results 21 to 30 of about 476,574 (178)

Acknowledgment to Reviewers of Machines in 2020

open access: yes, 2021
Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that Machines maintains its standards for the high quality of its published papers [...
Machines Editorial Office Machines Editorial Office
core   +1 more source

Grain Damage in Low­Speed Collision with the Surfaces of the Hoisting­and­Transport Machines Working Parts

open access: yesСельскохозяйственные машины и технологии, 2020
To reduce the damage level of wheat grains during its post-harvest processing, it is proposed to replace steel working parts in lifting and transporting machines with polymer ones.(Research purpose) Experimentally determine the dependence of the degree ...
V. I. Pakhomov   +4 more
doaj   +1 more source

Reducing the Cost of 3D Metal Printing Using Selective Laser Melting (SLM) Technology in the Manufacture of a Drill Body by Reinforcing Thin-Walled Shell Forms with Metal-Polymers

open access: yesJournal of Manufacturing and Materials Processing
This article describes the technology for manufacturing a metal composite structure of a metal-cutting tool body. The main problem with using metal 3D-printing is its prohibitively high cost.
Nickolay S. Lubimyi   +7 more
doaj   +1 more source

Control system for electrohydraulic drive of a mobile sinking hoisting plant

open access: yesMATEC Web of Conferences, 2018
The article presents the results of the control system development for the electro hydraulic drive of a mobile sinking hoisting plant. Increasing the technical performance of mobile sinking hoisting plants is possible by increasing their productivity ...
Kurochkin Anton   +3 more
doaj   +1 more source

Analysis and design of permanent magnet assisted synchronous reluctance machines

open access: yes, 2010
This paper will outline various configurations and optimum topologies. This paper reviews various configurations of synchronous reluctance machines and developments as PM assisted reluctance machines.
Nagrial, Mahmood H.   +5 more
core   +1 more source

Methodology for Designing Vibration Devices with Asymmetric Oscillations and a Given Value of the Asymmetry of the Driving Force

open access: yesVibration
In mechanical engineering, the building industry, and many other branches of industry, vibration machines are widely used, in which circular and directed oscillations predominate in the form of movement of the working equipment.
Mihail D. Gerasimov   +4 more
doaj   +1 more source

Identification of Problems Associated with the Usage of Friction (Koeppe) Hoists Based on Geodetic Measurements

open access: yesGeosciences, 2020
The hoist assembly based on the Koeppe friction is a commonly used solution in mining. However, it has some disadvantages. A few centimeters offset of the groove axis can lead to excessive abrasion of linings on the Koeppe friction and pulleys.
Agnieszka Ochałek   +2 more
doaj   +1 more source

Strengthening elements to increase fatigue strength of mine hoisting machine steel structures

open access: yesMetalurgija, 2022
The article deals with the issues of reliable operation of metal structures of mine hoisting machines. A method has been developed that makes it possible to increase the brake device steel beam structures strength, which will further prevent the ...
A. D. Mekhtiyev   +5 more
doaj  

Frequency Control System for a Synchronized Asynchronous Electric Drive [PDF]

open access: yesE3S Web of Conferences, 2020
Considering the problem of energy saving at industrial enterprises, attention should be paid to the fact that about 70 ... 80% of all electric motors are asynchronous, and most of them are installed in unregulated drives.
Meshcheryakov Victor N.   +2 more
doaj   +1 more source

Method for calculating a two-drum mine winder

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2020
In the Republic of Belarus, on the base of JSC “Soligorsk Institute for Resources Saving Problems with Pilot Production”, the development and launch of import-substituting mass production of large-capacity double-drum mine winders with an increased ...
V. Ya. Prushak, A. P. Dvornik
doaj   +1 more source

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