dr inż. Grzegorz Rotta
Media społecznościowe
Kontakt
- grotta@pg.edu.pl
Adiunkt
- Miejsce pracy
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Budynek M-T
pokój 208 otwiera się w nowej karcie - grzegorz.rotta@pg.edu.pl
Wybrane publikacje
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Modeling lubricant flow between thrust-bearing pads
Inlet temperature is one of the main inputs in all models for the analysis of fluid film bearing performance. At the same time, inlettemperature distribution and also oil velocity distribution at the inlet are the result of flow phenomena in the gap between the bearingpads. These phenomena are complex and in many cases further affected by any special arrangements of forced oil supply to the gapbetween pads. The reason for such...
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Mechanical properties of the human stomach under uniaxial stress action
The aim of this study was to estimate the range of mechanical properties of the human stomach in order to use the collected data in numerical modelling of surgical stapling during resections of the stomach. The biomedical tests were conducted in a self-developed tensile test machine. Twenty-two fresh human stomach specimens were used for the experimental study of its general strength. The specimens were obtained from morbidly obese...
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Improving performance of large thrust bearings through modeling and experimentation
Large thrust bearings are highly loaded machine elements and their failures cause serious losses. Start ups and stoppages of the bearing under load are specially critical regimes of operation. Load carrying capacity depends on the profile of the oil gap. In transient states this profile is also changing. In the design of large thrust bearings minimizing thermo-elastic deformations is an important goal, which can be accomplished...
Uzyskane stopnie/tytuły naukowe
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2010-02-10
Nadanie stopnia naukowego
dr inż. Budowa i eksploatacja maszyn (Dziedzina nauk technicznych)
wyświetlono 1620 razy