Sökning: "gear oil"

Visar resultat 1 - 5 av 31 uppsatser innehållade orden gear oil.

1. 1. Test rig for gear transmissions in electrical applications

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

   Författare :Gustaf Axelström; [2023]
   Nyckelord :power circulation; gear test rig; gear testing; effektcirkulation; testrigg; kugghjulstest;

   Sammanfattning : Due to the environmental problems associated with fossil fuels and a big need from the market, the majority of the automotive industry is going towards fully electric vehicles (EVs). To further reduce the environmental footprint there is ongoing research on the use of fossil-free lubricants, if they could be used to lubricate the drive train which could further reduce the use of fossil oil in the automotive industry. LÄS MER

3. 2. 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

4. 3. On the friction and failure mechanisms of bearing and gear surfaces lubricated by a novel nanoadditive in highly stressed operating conditions

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

   Författare :Diego Manuel Chamorro Ruz; [2022]
   Nyckelord :micropitting; nanoadditive; gear; bearing; tribology; rolling contact fatigue;

   Sammanfattning : Obtaining an enhanced lifespan for mechanical transmissions has become a challenge in diverse application sectors. Micropitting as a contact fatigue mechanism has seriously jeopardized the well-being of rolling-sliding elements present for instance in gearboxes. LÄS MER

5. 4. SUSTAINABLE LUBRICATION FOR FUTURE TRANSMISSIONS : Micropitting performance of Glycerol-based lubricants

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

   Författare :Zapata Tamayo Juan Guillermo; [2021]
   Nyckelord :micropitting; mild sliding wear; surface coating; diamond-like carbon DLC; glycerol-based lubrication; green lubricant; rolling contact fatigue; rolling-sliding;

   Sammanfattning : Achieving sustainable lubrication by using environmentally friendly formulated lubricants has became an essential component of the transition process from fossil-powered vehicles to electrified transportation. Mixtures, or aqueous solutions of molecules such as polyhydroxy alcohols, and glycols usually known as green lubricants make it possible to achieve low friction coefficients under different lubrication conditions, which constitutes a potential alternative to improve the tribological performance of moving parts in automotive systems, at the same time that the environmental requirements are satisfied. LÄS MER

7. 5. Choklad-3D-skrivare : En undersökning av chokladutskrifters egenskaper

   Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

   Författare :Anton Hylander; Malinda Blomqvist; [2020]
   Nyckelord :Arduino; RAMPS; Marlin; Chocolate; 3D printer; V-slot; CoreXY; Arduino; RAMPS; Marlin; Choklad; 3D-skrivare; V-slot; CoreXY;

   Sammanfattning : 3D-utskrift har under det senaste decenniet blivit mycket populärt och spridit sig till många branscher och material. I denna rapport kommer flera aspekter av användandet av choklad som utskriftsmaterial testas och utvärderas. Genom att bygga en 3D-skrivare har ett flertal viktiga parametrar för 3D-utskrift i choklad anpassats och testats. LÄS MER