Search for dissertations about: "Machine Elements"
Showing result 16 - 20 of 247 swedish dissertations containing the words Machine Elements.
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16. Journal bearing design, lubrication and operation for enhanced performance
Abstract : The increasing introduction of intermittent power sources combined with the de-regulation of electricity markets has led to increased instability in the electrical grid. This has led to increased start-up and shutdown of regulating power sources such as hydro-electric power plants and operation at non-ideal operating states both of which increase the wear and tear on machines. READ MORE
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17. Rough surface elastohydrodynamic lubrication and contact mechanics
Abstract : In the field of tribology, there are numerous theoretical models that may be described mathematically in the form of integro-differential systems of equations. Some of these systems of equations are sufficiently well posed to allow for numerical solutions to be carried out resulting in accurate predictions. READ MORE
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18. Computational fluid dynamics in theoretical simulations of elastohydrodynamic lubrication
Abstract : The work presented in this thesis concerns computer simulations of lubrication processes, and the main part deals with simulations in the elastohydrodynamic lubrication (EHL) regime. The thesis summarises the work performed in the five papers referred to as Paper A, B, C, D and E. READ MORE
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19. Wet clutch friction reliability : influence of water contamination and system design
Abstract : Wet clutches are machine components using friction to transfer torque and providing interruptible connection between rotating shafts in different automobile applications including automatic transmissions. Like any friction generating machine components, wet clutches are susceptible to continuous wear and degradation during sliding. READ MORE
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20. Lubrication mechanism of hydrocarbon-mimicking ionic liquids
Abstract : Lubrication is critical in order to achieve high efficiency and reliability of machine elements such as gears, bearings, and other moving mechanical assemblies (MMA). In space applications, tribological properties of lubricants are quickly growing more important. READ MORE