Temat: balance device - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Static and dynamic analysis of a pump impeller with a balancing device. Part I: static analysis
Autorzy:: Kundera, C.
Martsinkovsky, V. A.
Powiązania:: https://bibliotekanauki.pl/articles/955217.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: pompa wirowa
analiza statyczna
wirnik
pump impeller
balance device
static analysis
Opis:: This part of the work presents the design and static analysis of an impeller for a single-stage pump. The impeller is directly connected with a balancing device. The impeller needs to have a properly designed system of longitudinal and lateral clearances on both sides. With the simplifying assumptions concerning the flow and distribution of pressure in the longitudinal and lateral clearances, the static analysis involved deriving relationships between the impeller geometry and the basic performance parameters of the pump. A numerical example was used to show the calculation procedure of static characteristics for the predetermined parameters.
Źródło:: International Journal of Applied Mechanics and Engineering; 2014, 19, 3; 609-619
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Static and dynamics of a pump impeller with a balancing device. Part II: dynamic analysis
Autorzy:: Martsinkovsky, V. A.
Zhulyov, A.
Kundera, C.
Powiązania:: https://bibliotekanauki.pl/articles/955212.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: pompa wirowa
wirnik
analiza dynamiczna
dynamic analysis
pump impeller
balance device
stability condition
Opis:: This paper presents the theoretical study of the system comprising an impeller and a balancing device. It deals with the dynamic analysis of the system, i.e., the axial vibrations of the impeller, and the system stability. The dynamic analysis took into account linearized hydrodynamic forces and moments generated in the longitudinal clearances of the seals of the impeller. The theoretical analysis was supplemented with a numerical example with characteristics determined for a real single-stage centrifugal pump.
Źródło:: International Journal of Applied Mechanics and Engineering; 2014, 19, 3; 621-631
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Qucs equation-defined and Verilog-A higher order behavioral device models for harmonic balance circuit simulation
Autorzy:: Brinson, M.
Kuznetsov, V.
Powiązania:: https://bibliotekanauki.pl/articles/397905.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:: Qucs
Xyce
Harmonic Balance RF simulation
compact semiconductor device modelling
equation-defined devices
macromodel
modelowanie urządzeń elektronicznych
makromodele
Opis:: This paper is concerned with the development and evaluation of a number of modeling techniques which improve Qucs Harmonic Balance simulation performance of RF compact device models. Although Qucs supports conventional SPICE semiconductor device models, whose static current/voltage and dynamic charge characteristics exhibit second and higher order derivatives may not be continuous, there is no guarantee that these will function without Harmonic Balance simulation convergence problems. The same comment also applies to a number of legacy compact semiconductor device models. The modeling of semiconductor devices centered on non-linear Equation-Defined Devices and blocks of Verilog-A code, combined with linear components, is introduced. These form a class of compact macromodel that has improved Harmonic Balance simulation performance. To illustrate the presented modeling techniques RF diode, BJT and MESFET macromodels are described and their Harmonic Balance performance simulated with Qucs and Xyce©.
Źródło:: International Journal of Microelectronics and Computer Science; 2015, 6, 2; 49-58
2080-8755
2353-9607
Pojawia się w:: International Journal of Microelectronics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Heat balance of the military vehicle
Autorzy:: Brzeżański, M.
Mężyk, P.
Powiązania:: https://bibliotekanauki.pl/articles/133873.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:: heat balance
thermal energy storage
emission of heat
thermal image
IR device
bilans cieplny
magazynowanie energii cieplnej
emisja ciepła
obraz termowizyjny
Opis:: In modern combat vehicles there are very often used observation devices with the capability of operating in the infrared. They allow detecting heat emission. It is very important to reduce such situation on the battlefield; therefore generated heat masking or reducing systems are used. The article presents the heat balance of the military vehicle, impact of heat amount on detectability and solutions reducing or changing the thermal image which impedes recognition.
Źródło:: Combustion Engines; 2017, 56, 3; 131-134
2300-9896
2658-1442
Pojawia się w:: Combustion Engines
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Frequency domain non-linear compact modelling and simulation of IC spiral inductors on silicon
Autorzy:: Brinson, Mike
Powiązania:: https://bibliotekanauki.pl/articles/397951.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:: Qucs
Qucs-S
Ngspice
Xyce
compact device modelling
Frequency Equation-Defined Devices
FEDD
Equation-Defined Devices
EDD
SPICE B type sources
Harmonic Balance simulation
Opis:: SPICE AC circuit simulation is fundamentally a small signal network analysis of a linear or non-linear circuit operating at specified DC bias conditions, where the electrical network component values are assumed not to be functions of AC input signal frequency. In the case of RF circuit simulation this assumption can give rise to significant modelling errors. With the recent improvements in General Public License (GPL) circuit simulators this situation is changing, particularly through the introduction of Frequency Dependent Equation-Defined Device (FEDD) models, non-linear current/voltage static and dynamic Equation-Defined Device (EDD) models and user controlled swept signal frequency simulation employing Harmonic Balance steady state analysis. The main purpose of this paper is to introduce a number of novel modelling and circuit simulation techniques that allow, and enhance, the construction of compact device models with embedded behavioural components whose non-linear properties are functions of AC input signal frequency. To demonstrate these new modelling techniques a compact model for a 10 GHz band width spiral inductor integrated on silicon is introduced, its compact model presented, and finally its simulation performance compared with published measured device data.
Źródło:: International Journal of Microelectronics and Computer Science; 2018, 9, 1; 13-26
2080-8755
2353-9607
Pojawia się w:: International Journal of Microelectronics and Computer Science
Dostawca treści:: Biblioteka Nauki

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