Results 21 to 30 of about 51,220 (197)

Fishing vessels' rolling bearings reducers of diesel-reducer units: The diagnostics' results

open access: yesVestnik MGTU, 2018
In marine power plants with medium-speed diesels, diesel-reducer units (DRU) being a combination of diesel, gearbox, shaft-generators and other aggregates that can be driven from DRU have become very popular.
Sergeev K. О. , Pankratov A. А.
doaj   +1 more source

System optimization by multiobjective genetic algorithms and analysis of the coupling between variables, constraints and objectives [PDF]

open access: yes, 2005
This paper presents a methodology based on Multiobjective Genetic Algorithms (MOGA’s) for the design of electrical engineering systems. MOGA’s allow to optimize multiple heterogeneous criteria in complex systems, but also simplify couplings and ...
Roboam, Xavier   +2 more
core   +2 more sources

Erosion–corrosion behavior of X65 carbon steel in oilfield formation water

open access: yesInternational Journal of Electrochemical Science, 2019
Erosion–corrosion behavior of an X65 steel reducer in oilfield formation water containing quartz sand particles was investigated using circulating loop system and scanning electron microscopy (SEM).
Jingbo Liu, Jihui Wang, Wenbin Hu
doaj   +1 more source

POSSIBILITIES TO IMPROVE THE FUNCTIONING OF HIGH CAPACITY BELT CONVEYERS TMC 1800 FROM JILȚ SUD QUARRY [PDF]

open access: yesFiabilitate şi Durabilitate, 2022
The totality of the machines which ensure the excavation, transportation and depositing of the minig masses make up a flow sheet. High capacity belt conveyers are transport equipments in continuous flux with very high transportation capacities.
Răzvan Bogdan ITU
doaj  

Loading mechanism of a planetary roller reducer for a high-speed motor

open access: yesNihon Kikai Gakkai ronbunshu, 2019
This paper describes a newly invented loading cam that provides a contact force for a planetary roller. A high-speed electric motor with a small reducer and high-power transmission efficiency realizes a powertrain system with a high power density because
Takeshi YAMAMOTO
doaj   +1 more source

Tetrahedra are not reduced

open access: yesApplied Mathematics Letters, 2002
A convex body (i.e., a compact convex set with interior points in \(\mathbb R^n\), \(n\geq 2\)) which does not properly contain a convex body with the same minimal width is said to be reduced. It is known that every regular \(m\)-gon in \(\mathbb R^2\) with odd vertex number \(m\) is reduced. Being motivated by the problem `Do there exist reduced \(n\)-
Horst Martini, Walter Wenzel
openaire   +1 more source

Planar two-stage movable tooth reducer closed by input shaft

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2020
In this paper, a planar two-stage movable tooth reducer closed by input shaft is proposed. Through analyzing the motion transfer flow, the equation for calculating the speed ratio of the reducer is given.
Lizhong XU, Ruixing LI
doaj   +1 more source

ANALYSIS OF ENERGETIC INDICES OF TRADITIONAL GEARED ELEVATING MECHANISM WITH TWO-SPEED ASYNCHRONOUS MOTOR FOR PASSENGER LIFTS [PDF]

open access: yesProblems of the Regional Energetics, 2014
In the article the technique of the mathematical description and researches of the two- speed asynchronous electric drive for the passenger lift of a traditional design is offered. The mathematical model is presented and its elements are described.
Boyko A.
doaj  

Investigation of Hybrid Tooth Profiles for Robotic Drives Based on IH Tooth Profiles and Cycloidal Curves

open access: yesApplied Sciences
Recently, with policies aimed at strengthening domestic manufacturing and technological innovation, the robotics industry has been growing rapidly, and its applications are expanding across various industrial fields.
Wonhyeong Jeong   +4 more
doaj   +1 more source

Graphical Dependencies and Mechanical Unit Selection for Driving a Work Machine

open access: yesEngineering Proceedings
The machine unit design for driving a specific work machine is a complex process, in which factors such as power machine type, power transmission drives, total efficiency coefficient, and total gear ratio determine an accurate model for calculating the ...
Stefan Ilchev Tenev
doaj   +1 more source

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