Results 21 to 30 of about 176,817 (335)

New Designs of Magnetic Fluid Seals for Reciprocating Motion

open access: yesPolish Maritime Research, 2022
The operating conditions of magnetic fluid seals during reciprocating motion are so different from those observed in rotating motion that the use of their conventional structures for reciprocating motion seals yields no good results.
Matuszewski Leszek, Bela Piotr
doaj   +1 more source

Development of a Model and Experimental Study of Thermal Processes in a Ferrofluid Sealer [PDF]

open access: yesProblems of the Regional Energetics, 2023
The aim of the work is to create an interconnected numerical model of the magnetic, hydrody-namic and temperature fields of a ferrofluid sealer and to analyze thermal processes occurring in high-speed seals.
Nesterov S.A. , Baklanov V.D.
doaj   +1 more source

Thermoconvective flow velocity in a high-speed magnetofluid seal after it has stopped [PDF]

open access: yes, 2012
Convective flow is investigated in the high-speed (linear velocity of the shaft seal is more than 1 m/s) magnetofluid shaft seal after it has been stopped. Magnetic fluid is preliminarily heated due to viscous friction in the moving seal. After the shaft
Krakov, M. S., Nikiforov, I. V.
core   +1 more source

Design of the Springs Tightening for a Double Cartridge Mechanical Seal

open access: yesTribology in Industry, 2023
Mechanical seals are used in a wide range of industrial applications, including pumps, compressors etc., in order to avoid leakage of the working fluid.
Andrei Stanciu   +2 more
doaj   +1 more source

Calculation of the Maximum Temperature of Diester-Based Magnetic Fluid Layers in High-Speed Seals

open access: yesNanomaterials, 2023
Magnetic fluids, as smart nanomaterials, have been successfully used in sealing applications and other fields. However, the temperature of magnetic fluids in the sealing gap is a key factor affecting sealing performances, limiting their application in ...
Yanhong Cheng   +6 more
doaj   +1 more source

Error Analysis in Numerical Simulation of the Static Pressure Capability of Magnetic Fluid Seals

open access: yesFrontiers in Materials, 2022
Magnetic fluid is a typical type of functional fluid which can be magnetized and controlled by an external magnetic field. In magnetic fluid seals, magnetic fluid is attracted in sealing gaps by a magnetic field gradient to form non-contact sealing ...
Zhenghao Li, Decai Li
doaj   +1 more source

Detection of a flow induced magnetic field eigenmode in the Riga dynamo facility [PDF]

open access: yes, 1999
In an experiment at the Riga sodium dynamo facility, a slowly growing magnetic field eigenmode has been detected over a period of about 15 seconds. For a slightly decreased propeller rotation rate, additional measurements showed a slow decay of this mode.
A. Gailitis   +20 more
core   +2 more sources

Research on Dynamic Seal Friction Torque Compensation for a Low-Slow-Small UAV Tracking System

open access: yesIEEE Access, 2023
To ensure reliable and accurate operation in a complex field environment for Low-Slow-Small unmanned aerial vehicle (LSS-UAV) tracking systems, a dynamic seal shafting structure consisting of a labyrinthine structure and a magnetic fluid seal ring is ...
Zhuqiu Gai, Jinsong Wang
doaj   +1 more source

Effect of Motor Shaft Eccentricity on the Performance of a High-Speed Magnetic Fluid Sealer [PDF]

open access: yesProblems of the Regional Energetics
The objective of the study is to develop recommendations for accounting during the design stage and the feasibility of operating a magnetic fluid seal with a significant eccentricity of the rotating shaft relative to stationary pole attachments.
Nesterov S.A. , Baklanov V.D.
doaj   +1 more source

A comparative study of magnetic seals by ferrofluids, magnetorheological fluids and magnetic powders

open access: yesFrontiers in Materials, 2022
Magnetic seals as a class of non-contact sealing technology have been a research focus. In these seals, magnetic materials, usually ferrofluids or magnetorheological fluids are attracted in sealing gaps as sealing medium. Recently, a novel sealing method
Zhenghao Li, Decai Li
doaj   +1 more source

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