A5071182073- Characterization and Applications of Magnetic Nanoparticles
- Engineering Technology and Methodologies
- Electric Power Systems and Control
- Mechanics and Biomechanics Studies
- Vibration Control and Rheological Fluids
- Tribology and Lubrication Engineering
- Mechanical Systems and Engineering
- Multilevel Inverters and Converters
- Hydraulic and Pneumatic Systems
- 3D Modeling in Geospatial Applications
- Sensorless Control of Electric Motors
- Engine and Fuel Emissions
- Diverse Industrial Engineering Technologies
- Surface Treatment and Coatings
- Advanced Research in Science and Engineering
- Additive Manufacturing and 3D Printing Technologies
- Advanced Control and Stabilization in Aerospace Systems
- Seismic Performance and Analysis
- Aerospace Engineering and Control Systems
- Material Properties and Applications
- Technical Engine Diagnostics and Monitoring
- Engineering Diagnostics and Reliability
- Advanced Theoretical and Applied Studies in Material Sciences and Geometry
- Geomagnetism and Paleomagnetism Studies
- Power Transformer Diagnostics and Insulation
Ivanovo State Power University
2015-2024
Penza State University
2022
National Research Mordovia State University
2018-2021
Ferrofluid (FF) is a colloidal solution of magnetic particles with surfactant in carrier fluid. sealers (FF sealers) ensures tightness moving shafts zero leakage the sealed medium and high reliability. The technology FF sealing rotating promising area application for FF. development new devices based on expanding scope their implementation are complex pressing scientific tasks. Conducting research requires special test benches experimental techniques. use modern software systems to create...
The purpose of this work is creation an interconnected numerical model the magnetic and hydrodynamic fields ferrofluid sealer to analyze effect centrifugal forces during shaft rotation on retained pressure drop. set goal was achieved by selection necessary equations, boundary conditions, assumptions properties concerning ferrofluids when building a gap in Comsol Multiphysics simulation environment. important results were obtained analyzed distributions field ferrofluid, evaluation arising...
The aim of the work is to create an interconnected numerical model magnetic, hydrodynamic and temperature fields a ferrofluid sealer analyze thermal processes occurring in highspeed seals. This goal achieved by selecting necessary equations, boundary conditions, assumptions physical properties magnetic fluid when building sealer’s working gap, verification developed results experiment. important are obtained analyzed data on influence both geometry gap heating ferrofluid. With shaft radius...
Состояние вопроса: Электромеханические магнитожидкостные демпферы начинают находить практическое применение в транспортных средствах, автомобилях, технологических установках
Авторское резюмеСостояние вопроса: Электромеханические магнитожидкостные демпферы с регулируемой жесткостью начинают находить практическое применение, но вопрос об адекватной расчетной методике, позволяющей предварительно оценить свойства магнитожидкостного демпфирующего устройства, до конца не решен.Используемые в настоящее время методики основаны на описании магнитной жидкости моделью Бингама.Недостатком такого подхода является отсутствие учета начального участка реологической кривой...
The article presents the results of development a universal control system for semiconductor power converters based on programmable logic devices (PLD). As result work done, shared functional modules various systems were determined, features implementing considered, and algorithms controlling mathematical models studied. principal circuit diagram converter is synthesized basis combination devises microcontroller. topologies printed boards their layout in single module are developed; built-in...
The effect of a magnetic spring is observed in electromechanical devices with limited pole sizes. Simultane-ous changing the system conductivity after relative displacement poles causes mag-netic tension forces. These forces fluid dampers have their own specific characteristics which not been studied before. All this requires studying on damper power characteristics, estimating properties magnetorheological suspension strength, nature its change and combination action viscosity resistance to...
Тенденции развития науки и образования -39 -Рис.6. Графики теоретических практических зависимостей высотного параметра шероховатости для сочетания различных параметров накатки.*** 1. ВЕРТИКАЛЬсистема автоматизированного проектирования технологических процессов.(Сайт компании «АСКОН», разработчика
The small size of the working gap in sealer makes many physical measurements difficult or impossible. main way to study processes inside device is use analytical and numerical mathematical modeling. Most researchers apply finite-element calculation magnetic field analytically find difference pressure. Currently, there are few studies devoted multiphysics calculations magnetorheological seal. models allows considering dependence rheological properties fluid on hydrodynamic, temperature...
The applicability of the magnetofluid sealing shafts controlled electric motors with an increase in rotational speed has been evaluated. A joint numerical simulation magnetic and hydrodynamic states hermetic seals carried out. Their properties characteristics are determined. Improved designs control program for magnetic-liquid proposed. An adaptive electrotechnical system variable is described.