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The Institute of Theoretical and Applied Mechanics
26
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1.
(75)
Original version of the author's contribution as presented on CD, . :
PDF
Modeling the effects of cavitation in pumps
Zima, P.
;
Maršík, F.
The paper presents the latest results of modeling of the erosion effects of cavitation bubbles on the blades of a water pump. Cavitation erosion is caused by the collapse [...]
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2.
(76)
Original version of the author's contribution as presented on CD, . :
PDF
EARLY AGE HYDRATION OF METAKAOLIN CEMENT BLENDS
CLARRIDGE, E.
;
PANESAR, D. K.
Currently, the precast industry represents 20% of concrete production around the world and the use of steam curing to accelerate hydration has been adopted as one of the [...]
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3.
(76)
Original version of the author's contribution as presented on book, page 479. :
PDF
REALIZATION OF GEOMETRIC NONLINEARITIES IN THE DETERMINATION OF EIGEN FREQUENCIES AND SHAPES BY FINITE ELEMENT METHOD
Poruba, Z.
;
Sikora, R.
The presented paper describes the process of determination of eigen shapes and eigen frequencies of the structure with non-linear joint. The presented method uses three d [...]
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4.
(76)
Original version of the author's contribution as presented on book, page 503. :
PDF
EXCITATION OF ROTATING DISK BY STATIONARY PERMANENT MAGNETS
Půst, L.
;
Pešek, L.
Flexural vibrations of rotating disk contain forward and backward traveling waves can be excited at certain speed of rotating disk also by a standing constant single poin [...]
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5.
(77)
Original version of the author's contribution as presented on CD, MCT. :
PDF
The control of active magnetic bearing using two-phase Q-learning
Březina, T.
;
Krejsa, J.
Q-learning method proved to be usable in active magnetic bearing (AMB) control task, however the learning speed remains the main problem. Two-phase variant of the Q-learn [...]
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6.
(77)
Original version of the author's contribution as presented on book, page 367. :
PDF
OPTIMIZATION OF BLADED DISK PASSIVE DAMPING ELEMENT
Lošák, P.
;
Malenovský, E.
This paper is aimed at reducing vibrations of bladed disk in particular operating state. The damping element used in this contribution is realized by a strap with isoscel [...]
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7.
(78)
Original version of the author's contribution as presented on CD, , page 1253. :
PDF
Does UNESCO inscription affect the performance of tourism destinations? A regional perspective
Cuccia, T.
;
Rizzo, I.
The article explores the role of UNESCO World Heritage List (WHL) as attractor of tourism demandand in the enhancement Tourism Destinations (TD) competitiveness. It aims [...]
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8.
(78)
Original version of the author's contribution as presented on book, page 547. :
PDF
IMPELLER BLADE DESIGN BASED ON THE DIFFERENTIAL GEOMETRY
Sloupenský, Z.
;
Pochylý, F.
A new method of blade design based on the previously determined meridional velocity field is introduced in this contribution. The aim of calculation is the spatial shape [...]
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9.
(79)
Original version of the author's contribution as presented on CD, . :
PDF
METHODS OF ABATEMENT OF EMISSIONS IN COMBUSTION CHAMBERS OF GAS TURBINES
Veselý, S.
At the present time, the European Union Commission has been discussing new emission levels with the individual member countries. NOx = 50 mgm-3 and CO = 50 mgm-3 levels c [...]
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10.
(81)
Original version of the author's contribution as presented on book, page 43. :
PDF
CALCULATION STUDY OF STEAM FLOW HROUGH A CONTROL VALVE
Bednář, L.
;
Jirka, L.
Outcomes of a numerical simulation of flow through an unbalanced control valve during the turbine's operational modes. A 2D as well as a 3D calculation study is considere [...]
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11.
(82)
Original version of the author's contribution as presented on CD, . :
PDF
DYNAMIC RESPONSE OF PIPING SYSTEMS DUE TO MOVING LOAD
Pečínka, Ladislav
;
Krupa, Vladimír
Abstrakt: In all power plants (classical and nuclear) are used safety relief valves. After opening of this ones the mass of fluid (gas or steam) begin to move with very h [...]
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12.
(83)
Original version of the author's contribution as presented on CD, . :
PDF
Steam flow distribution in the separator of VVER 440
Jirouš, F.
;
Härtel, P.
The reactors VVER – 440 are cooled and moderated by pressurized water – PWR. The primary coolant is subcooled in the PWR and steam is generated by transferring energy [...]
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13.
(83)
Original version of the author's contribution as presented on CD, . :
PDF
Exhaust hood for single flow arrangement of steam turbine
Tajč, L.
;
Hoznedl, M.
The basic form of the exhaust hood for single flow arrangement of steam turbine was designed by the experience from the optimization process of hoods for double flow arra [...]
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14.
(83)
Original version of the author's contribution as presented on CD, DYN. :
PDF
Modelling of bladed disk with damping effects in slip surfaces of shroud
Kellner, J.
;
Šašek, J.
This paper is concentrated on modelling of friction effects in bladed disk of steam turbine, which are realized by means of friction elements placed between blades shroud [...]
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15.
(84)
Original version of the author's contribution as presented on CD, , page 143. :
PDF
Thermodynamic loss of condensation in steam turbine cascade
Šťastný, M.
;
Šejna, M.
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16.
(84)
Original version of the author's contribution as presented on CD, . :
PDF
CONTROL VALVES FOR TURBINES WITH SUPERCRITICAL PARAMETERS OF STEAM
Bednář, L.
;
Tajč, L.
Experimentally investigated pressure pulsation downstream of the control valve cone is presented here. The valve with the mufflers and the flat bottom is compared with th [...]
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17.
(85)
Original version of the author's contribution as presented on book, page 587. :
PDF
MODAL ANALYSIS OF THE IMPERFECT BLADED DISK WITH FRICTION ELEMENTS
Šašek, J.
;
Kellner, J.
This paper is concerned with mathematical modeling of the imperfect bladed disk with friction elements, which are used to suppress blade vibration. These kinds of systems [...]
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18.
(86)
Original version of the author's contribution as presented on CD, . :
PDF
COMPUTATIONAL FATIGUE STRENGTH PREDICTION OF TURBINE BLADE PIN JOINT
Španiel, M.
;
Hrubý, Z.
Presented paper deals with computational fatigue strength prediction of high pressure level steam turbine blade pin joints. Quazi-static FE analysis of one turbine disk s [...]
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19.
(87)
Original version of the author's contribution as presented on CD, . :
PDF
APPLICATION OF CONCRETE BLADES ON A NEW TYPE OF VERTICAL AXIS WIND TURBINE
DIAO, Su
;
LI, Zongjin
The research focuses on developing a new type of vertical axis wind power generator, in which fan-shaped up-structure with floating foundation on water is used to catch t [...]
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20.
(87)
Original version of the author's contribution as presented on CD, POS. :
PDF
Losses in transition segments between stages with different admission rates
Polanský, J.
;
Rudas, B.
Are given the results of the calculation study of the streaming in the stage with different admission rates and in the chamber between grades (stages) with different admi [...]
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21.
(88)
Original version of the author's contribution as presented on CD, FLU. :
PDF
Dynamical stress of beam control system for steam turbines
Bednář, L.
;
Tajč, L.
The principle of a steam turbine balanced control system is presented here. The dynamic stress measurement method in parts of valves on its models in the aerodynamic wind [...]
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22.
(91)
Original version of the author's contribution as presented on CD, FRA. :
PDF
Simulation of crack propagation in steam turbine blade lock
Růžička, J.
;
Jurenka, J.
This paper presents a simulation of 3D curved crack propagation in a steam turbine blade lock. These fatigue cracks are often initiated near a blade root contact zone. Tw [...]
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23.
(92)
Original version of the author's contribution as presented on CD, . :
PDF
EXPERIMENTAL INVESTIGATION OF BLADE GRIDS AND TURBINE STAGES DESIGNED BY CFD
Tajč, L.
;
Šiková, I.
Experimental investigation of profile and secondary losses is presented here. The loss coefficients of different types of blade cascades are evaluated, the efficiency of [...]
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24.
(92)
Original version of the author's contribution as presented on book, page 671. :
PDF
EFFECT OF EQUALIZING GAPS ON THE FLOW IN THE TURBINE STAGES
Yun, K.
;
Tajč, L.
A stage with impulse blading on a drum rotor is considered. Steam leakage through the shroud and shaft sealing has been determined by means of a numerical simulation. The [...]
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25.
(96)
Original version of the author's contribution as presented on CD, FLU. :
PDF
Effect of end wall shaping on steam turbine stage efficiency
Hoznedl, M.
;
Tajč, L.
The paper describes effects of end wall shaping in guide blades on steam turbine stage efficiency. CFD and measurement of straight blade cascades in a wind tunnel were pe [...]
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26.
(100)
Original version of the author's contribution as presented on CD, POS. :
PDF
Control of the steam mass flow through the turbine stage
Jeník, J.
;
Jůza, Z.
The point of this paper is the comparison between the different kind of shapes turbine blades in relation to efficiency of the stage. The first part of the paper deals wi [...]
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