Tribology and machine elements
Rebai, Hosni (2014)
Rebai, Hosni
Hämeen ammattikorkeakoulu
2014
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:amk-2014092914296
https://urn.fi/URN:NBN:fi:amk-2014092914296
Tiivistelmä
The general purpose of this thesis was to explain the fundamental theory of tribology and to study the behavior of machine elements behavior with tribology. This thesis was commissioned by HAMK University of Applied Sciences with the aim to provide additional studying material for this sci-ence area. The initial background was based on machine elements theory and the thesis results are essential knowledge for machinery related design.
This work aims to define theory and results behind friction phenomena. Also, to determine different wear types and reasons for wear failure. This thesis also focuses on different aspects of lubrication and the influence of viscosity and lubrication regimes on machine elements performance. An additional target of this thesis work was to present tribological behavior of gears and bearings elements.
The starting theory used in this work was based on machine elements and strength of materials studies but it required a further knowledge of other fields such fluid and solids mechanics, thermodynamics, physics and mate-rial science. The thesis focuses only on tribological functions of gears and bearings and requires previous knowledge of these elements.
The studies presented in this work allowed analysis of different phenome-na causing friction and the definition of different formulas to evaluate friction. The work also provided methods of calculations to predict wear losses under non-lubricated and lubricated conditions. Furthermore lubri-cation regimes for operating machine elements and viscosity response for different working conditions were presented. Finally, equations quantify-ing bearing and gears tribological behavior were determined.
This work aims to define theory and results behind friction phenomena. Also, to determine different wear types and reasons for wear failure. This thesis also focuses on different aspects of lubrication and the influence of viscosity and lubrication regimes on machine elements performance. An additional target of this thesis work was to present tribological behavior of gears and bearings elements.
The starting theory used in this work was based on machine elements and strength of materials studies but it required a further knowledge of other fields such fluid and solids mechanics, thermodynamics, physics and mate-rial science. The thesis focuses only on tribological functions of gears and bearings and requires previous knowledge of these elements.
The studies presented in this work allowed analysis of different phenome-na causing friction and the definition of different formulas to evaluate friction. The work also provided methods of calculations to predict wear losses under non-lubricated and lubricated conditions. Furthermore lubri-cation regimes for operating machine elements and viscosity response for different working conditions were presented. Finally, equations quantify-ing bearing and gears tribological behavior were determined.