Temat: pressure distribution - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Effect of moisture content of cereal grains layer on pressure distribution on silo wall
Autorzy:: Kusinska, E.
Powiązania:: https://bibliotekanauki.pl/articles/25838.pdf
Data publikacji:: 1998
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: silo wall
cereal grain
pressure distribution
moisture content
Źródło:: International Agrophysics; 1998, 12, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: CFD analysis of pressure distribution in slide conical bearing lubricated with non-Newtonian oil
Autorzy:: Czaban, A.
Powiązania:: https://bibliotekanauki.pl/articles/241851.pdf
Data publikacji:: 2013
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: slide conical bearing
CFD
non-Newtonian oil
pressure distribution
Źródło:: Journal of KONES; 2013, 20, 3; 117-124
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Impact pressure distribution on a monopile structure excited by irregular breaking wave
Autorzy:: Veic, D.
Sulisz, W.
Powiązania:: https://bibliotekanauki.pl/articles/260112.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:: impact pressure distribution
monopile structure
breaking wave slamming process
Opis:: The problem of impact pressure distribution on a monopole structure excited by irregular breaking waves is investigated. The analysis is performed by applying a numerical model that combines potential flow model with a Navier-Stokes/VOF solution. The temporal pressure distribution is analysed for two breaking wave cases characterized by the significant difference in the steepness of the wave front. The peak impact pressures are observed in the region below the overturning wave jet where the pressure increases rapidly resulting in a peak value of the slamming coefficient equal to Cs=2π. The vertical load distribution provided by the derived model is more realistic than a rectangular shape distribution applied in engineering practice. This is because the vertical load distribution strongly depends on breaking wave shape and it is difficult to uniquely approximate such a load distribution by a rectangle.
Źródło:: Polish Maritime Research; 2018, S 1; 29-35
1233-2585
Pojawia się w:: Polish Maritime Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Effects of moisture content of grain layers and their arrangement in the silo on the temperature and pressure distribution
Autorzy:: Kusinska, E.
Powiązania:: https://bibliotekanauki.pl/articles/24763.pdf
Data publikacji:: 1999
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: silo
temperature
grain layer
pressure distribution
moisture content
cereal
Źródło:: International Agrophysics; 1999, 13, 4
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: CFD analysis of effect of misalignment plane position on hydrodynamic lubrication of slide conical bearing
Autorzy:: Czaban, A.
Powiązania:: https://bibliotekanauki.pl/articles/246851.pdf
Data publikacji:: 2017
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: slide bearing
hydrodynamic lubrication
conical bearing
misalignment
CFD
pressure distribution
Opis:: The numerical calculations of the hydrodynamic lubrication of slide bearings can be carried out by modelling the oil flow for a given value of height of bearing lubrication gap. On the basis of the assumed height of the lubrication gap, the values of hydrodynamic pressures, load carrying capacities, friction forces, temperatures, can be determined. The bearing lubrication gap height can be influenced by many effects, e.g. misalignment between the shaft axis and the axis of the sleeve, vibrations, varying load, change in the viscosity value of lubricating oil caused by changes in temperature, pressure, shear rate or by oil ageing, wear of journal and sleeve surfaces. This article presents the results of numerical simulations concerning the influence of the misalignment between the axis of shaft and the axis of sleeve of the sliding conical bearing on its hydrodynamic lubrication, by taking into account the position of the plane in which the misalignment occurs. In this study, there was defined an angle between the plane in which the misalignment occurs and the plane in which lies the line of centres of corresponding bearing without misalignment. In this research, to investigate the impact of the position of the plane in which the misalignment occurs, the CFD software, designed to solve general flow phenomena, was used. It was assumed, that the bearings operate in a steady state conditions, the flow in the bearing lubrication gap is laminar and non-isothermal. A lubricating oil has shear properties as the Ostwald-de Waele fluid.
Źródło:: Journal of KONES; 2017, 24, 2; 65-72
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Pressure in slide journal plane bearing by laminar unsteady oil flow
Autorzy:: Krasowski, P.
Powiązania:: https://bibliotekanauki.pl/articles/247887.pdf
Data publikacji:: 2007
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: journal plane bearing
lubrication
unsteady laminar oil flow
pressure distribution
Opis:: This paper shows results of numerical solutions a modified Reynolds equation for laminar unsteady oil flow in slide journal plane bearing gap. It shows a preliminary analysis of pressure distribution change in the bearing by laminar, unsteady lubrication caused by velocity perturbations of oil flow in the longitudinal direction of a bearing. Described effect can be used as an example of modelling the bearing friction node operations in reciprocating movement during exploitation of engines and machines. Plane crossbar journal bearing occur in ship combustion engine as a crosshead bearing. During modelling crossbar bearing operations in combustion engines, bearing movement perturbations from engine vertical vibrations causes velocity flow perturbations of lubricating oil on the bearing race and on the bearing slider in the longitudinal direction. Engine forced vertical vibrations frequency and crankshaft forced torsional vibrations is determined by shaft rotational speed, engine cylinder number and by engine type. This solution example applies to isothermal bearing model with infinity length. Lubricating oil used in this model has Newtonian properties and dynamic viscosity in dependence on pressure. Results are presented in the dimensionless hydrodynamicpressure diagrams.
Źródło:: Journal of KONES; 2007, 14, 3; 297-303
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: The flow of rape seed in a silo equipped with a discharge device
Autorzy:: Kamiński, M.
Antonowicz, R.
Powiązania:: https://bibliotekanauki.pl/articles/1955775.pdf
Data publikacji:: 2003
Wydawca:: Politechnika Gdańska
Tematy:: silo
anti-dynamic tube
flow rate
pressure distribution
damaged silo
Opis:: The paper contains a review of experiments with rape seed in a model silo with a semicircular flat bottom equipped with a low-height discharge device. Observations of flow patterns were made during filling and discharging through the transparent front wall of the model silo. Measurement of wall normal pressures and discharge flow rate were also made. A properly designed discharging device can eliminate a pressure peak which is usual for the transition point (dynamic overpressure) in mass flow silos. Experiments have shown that a low-height discharge device can be applied to reduce the pressure increase during discharging damaged silos.
Źródło:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2003, 7, 4; 561-569
1428-6394
Pojawia się w:: TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Oil pressure distribution in conical ring gaps
Rozklady cisnienia oleju w szczelinach pierscieniowych stozkowych
Autorzy:: Zloto, T.
Kowalski, K.
Powiązania:: https://bibliotekanauki.pl/articles/793712.pdf
Data publikacji:: 2012
Wydawca:: Komisja Motoryzacji i Energetyki Rolnictwa
Tematy:: piston-cylinder pump
pressure distribution
oil pressure distribution
conical ring gap
piston pump
hydraulic motor
Navier-Stokes equation
viscosity
hydraulic system
computational model
Źródło:: Teka Komisji Motoryzacji i Energetyki Rolnictwa; 2012, 12, 2
1641-7739
Pojawia się w:: Teka Komisji Motoryzacji i Energetyki Rolnictwa
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Effect of triticale moisture content and slenderness ratio of a silo on pressure distribution
Autorzy:: Kusinska, E.
Powiązania:: https://bibliotekanauki.pl/articles/24117.pdf
Data publikacji:: 2000
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: cylindrical silo
silo
slenderness ratio
triticale
pressure distribution
moisture content
Źródło:: International Agrophysics; 2000, 14, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Numerical analysis of influence of bearing material thermal conductivity coefficient on hydrodynamic lubrication of a conical slide bearing
Autorzy:: Czaban, A.
Powiązania:: https://bibliotekanauki.pl/articles/246592.pdf
Data publikacji:: 2018
Wydawca:: Instytut Techniczny Wojsk Lotniczych
Tematy:: slide bearing
hydrodynamic lubrication
conical bearing
heat conduction
pressure distribution
Opis:: One of the main parameters affecting the hydrodynamic lubrication of slide bearings is the viscosity of lubricating oil. Many studies show, that significant changes in the viscosity of oil occur along with changes in its temperature. The influence on the temperature distribution in the lubrication gap of the slide bearing have a variety of factors, and one of them is the amount of heat exchanged between the lubricant and the environment. The temperature of the lubricating oil of operating bearing is usually higher than the ambient temperature. In addition to the convection, which occurs during the flow (heat exchange related to the oil supply and discharge system) some amount of heat is transferred to the bearing sleeve material (and also to the bearing shaft), and then it is conducted to sleeve outer surface. The amount of heat transferred through the bearing sleeve is mainly dependent on the difference of temperatures between inner and outer sleeve surfaces and also depend on the heat conduction coefficient of sleeve material. This article presents the results of modelling of the influence of amount of heat conducted through the bearing material, on the hydrodynamic lubrication of a conical slide bearing. The study concerned various values of the heat conduction coefficient of the bearing material to investigate its influence on the temperature values of lubricating oil, and thus, on its viscosity, on the distribution of hydrodynamic pressure and on the calculated values of bearing load carrying capacities and friction forces.
Źródło:: Journal of KONES; 2018, 25, 2; 89-96
1231-4005
2354-0133
Pojawia się w:: Journal of KONES
Dostawca treści:: Biblioteka Nauki

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