Sökning: "twin-disc"

Visar resultat 1 - 5 av 6 uppsatser innehållade ordet twin-disc.

1. 1. Influence of Surface Carbon Content on the Wear of Threaded Connections in Rock Drilling Steels

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Andreas Hälsing; [2023]
   Nyckelord :carbon content; wear performance; carburized steel; dry contact interface; threaded connections; drill rods; samples; shot peening; production process; twin-disc wear tester; RPM; operating conditions; wear rate; surface topography; hardness; optical analysis; light optical microscopy; scanning electron microscopy; surface carbon content; microstructural changes; frictional heat; contact pressure; wear mechanisms; plastic deformation; adhesive scratching; material removal; delamination;

   Sammanfattning : This thesis work was conducted at Luleå University of Technology in collaboration with Sandvik Rock Tools. The aim of the work was to determine the influence of carbon content on the wear performance in carburized steel in the dry contact interface of threaded connections between drill rods. LÄS MER

3. 2. Performance Analysis of Environmentally Adaptable Grease in Large open gears

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Victor Ogunmoye; [2022]
   Nyckelord :Grease; Large open gears; tribology; lubrication; wear; friction; Twin disc; Material surface;

   Sammanfattning : Environmentally adaptable grease (EAG) lubricants are essential in applications with loss lubrication due to their biodegradable nature. This is because the lubricants could be expelled into the environment during usage in some applications e.g., marine and mining applications. LÄS MER

4. 3. Optimisation of tribology of Alfa Laval separator screw gear systems

   Master-uppsats, Luleå tekniska universitet/Maskinelement

   Författare :Anurag Singh; [2022]
   Nyckelord :Screw gears; Tribology; Wear; Lubrication; Materials; Surface; Roughness; Twin disc tribometer;

   Sammanfattning : Gears are machine elements essential for mechanical transmission. Wear of gear teeth can causechanges in their profile geometry, causing vibration, noise, and subsequent gear failure. In this thesisproject, a twin disc tribometer has been used to mimic the actual Alfa Laval separator screw gearsystems. LÄS MER

5. 4. Influence of ANS Triboconditioning on friction and fatigue in rolling contact configurations

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Björn Hedmark; Per Wallgren; [2019]
   Nyckelord :Tribology; friction; fatigue; micropitting; surface engineering; twin-disc; triboconditioning; LTU;

   Sammanfattning : The automotive industry is constantly being challenged by customers and authorities to enhance the efficiency of the internal combustion engine (ICE) in order to achieve improved fuel consumption and reduced emissions. There are several interfaces within the design of an ICE that causes frictional losses, one of them is the valvetrain. LÄS MER

7. 5. Tribological performance of different crankshaft bearings in conjunction with textured shaft surfaces

   Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Författare :Lakshminarayana Reddy Tamatam; [2017]
   Nyckelord :Tribology; journal bearings; engine main bearings; automotive; friction; wear;

   Sammanfattning : Improving vehicle efficiency and complying to stricter exhaust emission legislations are some of the driving factors to advancement in technology of engine components. The main bearings in an internal combustion engine contribute significant amount of friction. These bearings support engine loads and allow free rotation of the crankshaft. LÄS MER