Results 21 to 30 of about 10,938,300 (390)

Comparative analysis on the performance envelope of a three-pad and four-pad active journal bearing

open access: yesCogent Engineering, 2023
Controllable fluid film bearings with the ability to actively modify the operational conditions of rotor bearing systems possess high demand in the field of rotating machinery.
Girish H   +4 more
doaj   +1 more source

Calculation of Processes in the Electric Drive of the Sucker-Rod Pumping Unit with Reactive Power Compensation

open access: yesEnergies, 2023
The uneven load of the electric drive of sucker-rod pumping units causes an increase in the consumption of reactive power, which requires compensation. This article discusses the issue of calculating the processes in sucker-rod pumping units in the case ...
Andriy Malyar, Sławomir Cieslik
doaj   +1 more source

Numerical analysis of aerodynamic lubricated double-decked protuberant foil thrust bearing

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
Double-decked protuberant foil bearing is a type of foil bearing that uses two stacking-up layers of protuberant foils as supporting structure. In preliminary experiments, wear failure of foil thrust bearing occurs occasionally due to excessive axial ...
Yu GUO   +5 more
doaj   +1 more source

Theoretical Analysis and Optimum Design of High Speed Gas Film Thrust Bearings

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
This paper describes the theoretical and experimental investigations of static and dynamic characteristics of four types of high-speed gas film thrust bearings, such as stepped, pocketed, spiral and herring bone grooved bearings.
Hiromu HASHIMOTO, Masayuki OCHIAI
doaj   +1 more source

Static Characteristics of a Tilting Five-Pad Journal Bearing with an Asymmetric Geometry

open access: yesActuators, 2020
In this paper, static characteristics of a tilting five-pad rocker-backed journal bearing with an asymmetric geometry, i.e., different clearance for each pad, are investigated.
P. V. Dang, S. Chatterton, P. Pennacchi
semanticscholar   +1 more source

Static characteristics and engineering applications of micro negative Poisson’s ratio bolt

open access: yesRock and Soil Mechanics, 2022
Compared with traditional small deformation bolt materials, the negative Poisson’s ratio (NPR) bolt/cable material has excellent mechanical properties such as large elongation, high strength, high toughness, high constant resistance, and energy ...
TAO Zhi-gang   +7 more
doaj   +1 more source

Calculation and Construction of Load Diagrams and Static Characteristics of Multi-Motor Electric Drive System Using Methods of Equivalent Forces and Reduced Moments

open access: yesE3S Web of Conferences, 2020
This paper includes the calculations and construction of load diagrams and static characteristics of individual mechanisms of a mining combine, which form a combined multi-motor electric drive system, using methods of equivalent efforts and reduced ...
M. Semenova   +5 more
semanticscholar   +1 more source

Study on the Static Characteristics of a Pre-Pressure Single-Action Membrane-Type Restrictor Used in a Single Oil Pad

open access: yesMachines, 2022
In order to further improve the static stiffness of the hydrostatic bearing with the membrane-type restrictor, in this study, a static characteristics model of the pre-pressure single-action membrane-type restrictor (PSMR) is derived, and the criteria ...
Feng Lu   +3 more
doaj   +1 more source

Modeling static characteristics of angular velocity measuring transducer of the “nozzle-damper” type

open access: yesJournal of Physics: Conference Series, 2020
The article describes the design and principle of operation of the hydraulic measuring transducer of angular velocity of the “nozzle-damper” type. The aim of the study is the mathematical modeling in the MathCAD program of the static characteristics ...
V. Golubovsky, V. Konovalov, M. Doncova
semanticscholar   +1 more source

Investigating the Magnetic Characteristics of 12/8 Switched Reluctance Motor for Enhanced Starting Torque

open access: yesNigerian Journal of Technological Development, 2021
The switched reluctance motor (SRM) is among the special purpose electric machine family. It is simple in construction and avoids use of magnet so it is cheap to manufacture.
E. C. Abunike   +3 more
doaj   +3 more sources

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