Filtry
Maximum Efficiency of an Induction Machine Operating in a Wide Range of Speed and Torque - Part 1 (Theoretical Analysis)
A set of unique equations usable to calculate directly the optimum slip frequency and line voltage of a 3phase squirrel-cage induction machine with respect to maximum efficiency is deduced in this article. An operation in s...
JA - Elektronika a optoelektronika, elektrotechnika
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
MINIMUM LOSSES OF AN INDUCTION MOTOR OPERATING IN A WIDE RANGE OF TORQUE AND SPEED
Special equations usable to calculate directly the optimum slip frequency and line voltage of a 3phase squirrel-cage induction machine with respect to maximum efficiency were deduced. An operation in steady state at any req...
JA - Elektronika a optoelektronika, elektrotechnika
- 2008 •
- D
Rok uplatnění
D - Stať ve sborníku
Maximum Efficiency of an Induction Machine Operating in a Wide Range of Speed and Torque - Part 2 (Calculation, Simulation and Measurement Results)
A set of equations usable to calculate directly the optimum slip frequency and line voltage of a 3phase squirrel-cage induction machine with respect to maximum efficiency was deduced in part 1 of this article. An operation ...
JA - Elektronika a optoelektronika, elektrotechnika
- 2010 •
- D
Rok uplatnění
D - Stať ve sborníku
Efficiency control of inverter fed induction motor drives
Induction motor losses at partial load can be significantly reduced by operating an adjustable frequency drive at the optimum slip with yields maximum efficiency....
JA - Elektronika a optoelektronika, elektrotechnika
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
Apparent Wall Slip of Tungsten Carbide Based Feedstock for Powder Injection Moulding
Highly filled polymeric suspensions, such as those involved in Powder Injection Moulding (PIM), exhibit complex rheological behaviour. A detailed understanding of the rheology of these suspensions are prerequisite for their optimum and safe ...
JJ - Ostatní materiály
- 2007 •
- D
Rok uplatnění
D - Stať ve sborníku
Numerical analysis of plastic deformation mechanisms in polycrystallinencopper under cyclic loading with different frequencies
The frequency of cyclic loading has a strong effect on the fatigue lifetime. The effects of cyclic loading with different frequencies arenstudied using the finite sents copper polycrystal that undergoes tension–compression loading w...
Audio engineering, reliability analysis
- 2024 •
- Jimp •
- Odkaz
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Frequency-dependent fatigue damage in polycrystalline copper analyzed by FIB tomography
with frequencies from 4 Hz to 20 kHz. With increasing frequency, the S-N curve was shifted of the cyclic frequency in order to explain the shift of the S-N curve amplitudes and frequencies. Scanning electron micro...
Materials engineering
- 2021 •
- Jimp •
- Odkaz
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Very high frequency induced fatigue damage
of test frequency and stress amplitude applied. The increased testing frequency reduced the number of slip markings. Nevertheless, it seems that test frequency only under very high frequencies and their r...
Materials engineering
- 2024 •
- Jimp •
- Odkaz
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Importance and strike slip frequency in continental Late Paleozoic of central and western Bohemia
DB - Geologie a mineralogie
- 1994 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Experimental and numerical estimation of tribological parameters in contact under fretting conditions
quantification were suggested and evaluated. Slips were also analyzed in frequency domain. There was found that the slipping does not occur only on loading frequency, but alsoThe thesis deals with estimation of co...
JL - Únava materiálu a lomová mechanika
- 2014 •
- O
Rok uplatnění
O - Ostatní výsledky
- 1 - 10 z 39 571