Publication detail
HIGH FREQUENSY PULSATIONS MODELING
KUBÁLEK, J. HABÁN, V.
Czech title
Modelování vyskofrekvenčních pulsací
English title
HIGH FREQUENSY PULSATIONS MODELING
Type
journal article - other
Language
en
Original abstract
This thesis is concentrated on mathematical modeling of high frequency pulsations in pump turbines, which are the source of high-cycle continuous stress of the spiral casing cover, wicket gates and runner. The problem is solved by transfer matrix method. F-A char. and MS Excel programs have been used for data processing. Final results are presented by graphs of frequency-amplitude characteristic depending on running speed of motor, and plots of the pressure mode shape in selected phase shifts. Modeled variants are those of wheels with 7; 9 blades and 7 blades and 7 semi-blades. The number of distributing blades is 20..
Czech abstract
Článek se zabývá problematikou matematického modelování vysokofrekvenčních pulsací vznikající interakcí oběžného kola a rozváděcích lopatek.
English abstract
This thesis is concentrated on mathematical modeling of high frequency pulsations in pump turbines, which are the source of high-cycle continuous stress of the spiral casing cover, wicket gates and runner. The problem is solved by transfer matrix method. F-A char. and MS Excel programs have been used for data processing. Final results are presented by graphs of frequency-amplitude characteristic depending on running speed of motor, and plots of the pressure mode shape in selected phase shifts. Modeled variants are those of wheels with 7; 9 blades and 7 blades and 7 semi-blades. The number of distributing blades is 20..
Keywords in Czech
pulsace, modelovní, frekvence, turnina, čerpadlo
Keywords in English
turbine, pump, high-frequency pulsations
RIV year
2009
Released
20.12.2009
Publisher
VUT
Location
Brno
ISSN
1802-1484
Journal
Engineering Mechanics
Volume
2009
Number
16
Pages from–to
457–464
Pages count
8
BIBTEX
@article{BUT49907,
author="Jiří {Kubálek} and Vladimír {Habán},
title="HIGH FREQUENSY PULSATIONS MODELING",
journal="Engineering Mechanics",
year="2009",
volume="2009",
number="16",
month="December",
pages="457--464",
publisher="VUT",
address="Brno",
issn="1802-1484"
}