Abstracts
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| Дата: | 2008 |
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| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут технічних проблем магнетизму НАН України
2008
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| Назва видання: | Електротехніка і електромеханіка |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/143116 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Abstracts // Електротехніка і електромеханіка. — 2008. — № 5. — С. 74-75. — англ. |
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irk-123456789-1431162018-10-25T01:23:18Z Abstracts 2008 Article Abstracts // Електротехніка і електромеханіка. — 2008. — № 5. — С. 74-75. — англ. 2074-272X http://dspace.nbuv.gov.ua/handle/123456789/143116 en Електротехніка і електромеханіка Інститут технічних проблем магнетизму НАН України |
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English |
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Abstracts |
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Abstracts Електротехніка і електромеханіка |
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Abstracts |
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Abstracts |
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Abstracts |
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Abstracts |
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abstracts |
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Інститут технічних проблем магнетизму НАН України |
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2008 |
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http://dspace.nbuv.gov.ua/handle/123456789/143116 |
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Abstracts // Електротехніка і електромеханіка. — 2008. — № 5. — С. 74-75. — англ. |
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Електротехніка і електромеханіка |
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2025-07-10T16:28:01Z |
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2025-07-10T16:28:01Z |
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1837278045017210880 |
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74 Електротехніка і Електромеханіка. 2008. №5
Abstracts
ELECTROENGINEERING: Prominent events and great names
Baranov M.I. 5
Radio electronics: short history of its
formation as the thematic applied-physics field
of both electricity and scientific-and-
technological advance of the humanity.
The paper presents a brief review of the basic
achievements of the humanity in the field of
generation, transmission, reception and
amplification of high-frequency electromagnetic
vibrations in micrometer–meter ranges of
wavelengths related to such an advanced branch of
science and technology as radio electronics.
Key words – radio electronics, high-
frequency electromagnetic vibrations, radio
wave, generation, transmission, reception,
amplification.
Electrical Mashines and Apparatus
Boyko A.St., Zavgorodniy V.D. 10
The basic principles of design calculation
of limited angle induction sensors with a
transverse-type magnetic system.
A design study technique for limited angle
induction sensors with a transverse magnetic system
is introduced. The technique allows specifying
geometrical dimensions of the active part, the
structure of windings and their winding data
depending on preset values of external sensor
parameters. The technique is confirmed by results of
experimental research oт output data of the sensor.
Key words – limited angle sensor,
transverse magnetic system, design study, angle
code determination.
Zinchenko E.E., Finkelshtein V.B. 16
Determination of geometrical dimensions
for the magnet core of a switched reluctance
motor.
A geometrical dimensions calculation
technique for the stator and rotor of a switched
reluctance motor is introduced. The technique
ensures maximum magnetic field energy in the air
gap at a specified current density.
Key words – switched reluctance motor,
magnet core, geometrical dimensions,
calculation technique.
Kuznetsov B. I., Vasilets T. E., Varfolomeyev A. A. 20
Synthesis and investigation of dynamic
characteristics of a light-armored vehicle
armament guidance and stabilization neuro-
system under stochastic disturbances.
Synthesis and investigation of dynamic
characteristics of a neural-network-based guidance
and stabilization system for light-armored vehicle
armament under external stochastic disturbances
are performed. The schematic of a control object
model adjusted for external disturbances is
developed, a neuro-controller synthesized, the
system simulation made. The neuro-system
introduced is shown to have one of the basic
characteristics of such systems, namely, it is
insensitive to external disturbances.
Key words – neuro-controller, armament
guidance and stabilization neuro-system,
external disturbances.
Limonov L.G. 24
Compensation of dynamic moment of the
asynchronous drive of a strip winder.
The article considers questions of improving
quality of strip tension regulation by a reel drive
with application of an asynchronous motor via
compensation of dynamic moment of the electric
drive during operation.
Key words – asynchronous motor, strip
winder, dynamic moment.
Radimov I.N., Rimsha V.V., Chan Txi Txu
Huong, Procina Z.P. 26
Geometrical proportions in a brushless DC
motor
Minimization of the cogging torque in a
brushless DC motor through choice of rational
geometrical proportions of its active zone is
described.
Key words – brushless DC motor, cogging
torque, magnetic field.
Fomin V.I. 29
Quartz filler action on arc quenching in fuses.
The article shows voltage gradient effect in
arc column as function of composition and degree
of compaction of quartz filler in fuses. Filler
loading techniques are reviewed and analyzed.
Key words – fuse, quartz filler, voltage
gradient effect, arc quenching.
Shumilov Yu.A., Demidyuk B.M., Shtorgin A.V. 32
Results of experimental research on
THUkr nuclear power station power plant № 3
turbogenerator TVV-1000-2U3 vibrations.
Using a vibrodiagnostics technique, reasons
for failure of turbogenerator (TG) ТVV-1000-2U3
stator winding in THUkr nuclear power station
power plant № 3 are analyzed. The existing
vibration control techniques oriented towards
offset of the TG construction elements from
frequencies of 50 and 100 Hz are shown not to
meet the real situation as vibrations at the
frequencies multiple of 50 and 100 Hz play a
noticeable role in increased vibroactivity of the TG
stator winding. Along with harmonic components
(higher ones and subharmonics), a significant role
is played by the vibration noise component caused
by the stator core insufficient pressing.
Key words – turbogenerator failure,
vibrodiagnostics technique, experimental
research.
Електротехніка і Електромеханіка. 2008. №5 75
Electrical Engineering: Theory
Baida E.I. 39
Electromagnetic equations based
calculation of transients in an
electromechanical mechanism.
A mathematical model for calculation of
transients in an electromechanical mechanism with
electromagnetic field theory application is
developed in Femlab. Magnetic flux and eddy
currents distribution in the magnetic core in
transient modes is obtained. Conclusions
concerning feasible speed of the electromechanical
mechanism are made.
Key words – electromechanical mechanism,
electromagnetic field theory, transients
calculation, Femlab.
Baranov M.I. 44
Research on stochastic distribution of de
Broglie half-waves and wave packages in a
conductor with a high-density pulse current.
On the basis of analytical and experimental
data, it is shown that longitudinal distribution of
quantized lengths of de Broglie half-waves and
macroscopic electron packages in a thin round
galvanized steel conductor with axial aperiodic
conduction current at the peak density of
0,37 kA/mm2 has probabilistic nature specified by
quantum-mechanical mechanisms of free electrons
behavior revealed by the author.
Key words – metallic explorer, current of
conductivity, electronic waves, electronic wave
packages.
Chaban V. 50
Co-energy of electromagnetic field.
The paper shows that in an electromagnetic
field the kinetic energy and co-energy that satisfy
the principle of least action in the variation integral
Hamilton-Ostrogradsky’s principle ensure equal
force characteristics of the last.
Key words – isotropy medium, energy and
co-energy, electromagnetic field.
High Electrical and Magnetic Field Engineering
Batygin Yu. V., Chaplygin E. A. 52
Experimental investigation of eddy
currents excitation in flat sheet metals.
A direct measurement technique for induced
currents in flat sheet billets of inductor systems for
magnetic impulse metalworking is introduced and
described. Experiments conducted have verified
theoretical conclusions about change in induced
signals time function as compared with inductor
current at lower working frequencies of acting fields.
For a harmonic process, the phase deference between
an excitation signal and an induced one is ~ 2π .
Key words – flat sheet metals, eddy currents
excitation, experimental investigation, direct
measurement technique.
Besprozvannykh A.V., Naboka B.G. 55
Action of energy dissipation in near-
surface layers of cable cord insulation on
dielectric losses in cables.
Substances formed at cable operation are
deposited on the surface of isolated cords. They are
harbingers of the isolation ageing. Revealing near-
surface layers is possible through results of dielectric
dissipation factor measurements. However, the
protective polyvinylchloride jacket significantly
influences measurement results. Energy dissipation in
the near-surface layers can be revealed via the
tangential component of an electric field. Difference
in δtg is an order at the frequency of 10 kHz under
realization of complex examination circuits with the
tangential component of a probing field. It is
evidence of non-uniform distribution of surface
layers in the cable cross-section.
Key words – insulation, near-surface layers,
energy dissipation, dielectric dissipation factor,
tangential component of an electric field.
Boyko N.I., Evdoshenko L.S., Zarochentsev
A.I., Ivanov V.M. 60
A Compact Multi-Module Generator of 2
MA Current Pulses.
A compact 32-module pulse generator with the
total load current output of about 2 MA has been
created. A mechanism of synchronous switching-on
of air (under atmospheric pressure) trigatrons of the
modules in the conditions when the two main
electrodes have no galvanic coupling to the ground is
described. A module trigatron adjustment procedure
for parallel operation is given.
Key words – air trigatron, synchronous
switching-on of trigatrons, compact multi-
module current pulse generator.
Bondarenko A.Yu. 65
Capacity discharge on a plane single-turn
inductor located over a thin-walled sheet work-
piece.
Theoretical analysis of the transient
phenomenon in the discharge circuit of a capacitive
energy storage loaded with a single-turn inductor
located over a thin-walled work-piece has been
carried out. Electromagnetic field penetration in the
work-piece has been taken into account. The transient
phenomenon is shown not to influence substantially
on the integral form of the discharge current.
Key words – transient phenomenon, single-
turn inductor, discharge current, thin-walled
work-piece.
Serikov G.S. 70
Magnetic field and pressure excited by an
inductor with finite-width current distributors
in workpiece bends.
In the article, influence of current-distributors
cross dimensions on magnetic pressure value in a
metal sheet bend is theoretically analyzed. It is
shown that combining inclination of the plane in
which the current distributors are located with the
width of the "far" current distributor allows
reaching sufficiently-high level of the field and
magnetic pressure forces concentration in the
working zone.
Key words – finite-width current
distributors, metal sheet bend, magnetic field,
magnetic pressure, analysis.
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