Essays about: "Mixed lubrication"

Showing result 1 - 5 of 11 essays containing the words Mixed lubrication.

1. 1. Tribological characterization of a ball bearing subjected to an electric field : Electric drivetrain tribology

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Muhammad Umar Farooq; [2023]
   Keywords : Ball bearing; electric drivetrain; tribology; electric field; characterization; bearing currents; discharge;

   Abstract : Electric machines are widely used in for instance the automotive industry in electric vehicles and in wind turbines. The electrical machines have mechanical bearings as an integral part used to transmit power and load. In addition, the main function includes reducing friction between interacting surfaces. READ MORE

3. 2. SUSTAINABLE LUBRICATION FOR FUTURE TRANSMISSIONS : Micropitting performance of Glycerol-based lubricants

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

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

   Abstract : 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. READ MORE

4. 3. Enhancement of evaluation method of journal bearings’ performance in heavy-duty diesel engines

   University essay from KTH/Skolan för industriell teknik och management (ITM)

   Author : Sateesh Nataraj; [2021]
   Keywords : Asperity contact pressure; elastohydrodynamic lubrication; friction; flow factors; run-in wear profile; Asperitetskontakttryck; elastohydrodynamik; friktion; flödesfaktorer; slitageprofil efter inkörning;

   Abstract : Journal bearings are being used in various locations of an internal combustion engine. They contribute to a large portion of total engine friction and lowering it means a significant contribution to CO2 reduction. READ MORE

5. 4. Investigation of elastic powder properties using analytical powder decompression : Effects of tablet compaction parameters, pressure, speed, and lubrication

   University essay from Uppsala universitet/Institutionen för farmaci

   Author : Pardis Babaei; [2020]
   Keywords : Pharmaceutical powder; elastic powder properties; analytical powder decompression;

   Abstract : Aim: The objective of this project was to use analytical powder decompression (APDC) in tablet compaction processes to study the elastic behavior of powders. Background: During powder compaction, the particles undergo four stages of rearrangement, plastic deformation or particle fracture, and elastic deformation. READ MORE

6. 5. Spiral Groove Bearing Multiphysics Modeling

   University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

   Author : Mohamed Yousri Abdelmeguid Mohamed; [2019]
   Keywords : ;

   Abstract : Cone crushers are widely used in the mining, mineral processing and quarrying segments of the industry to crush ores and large rocks. In such machinery, the load to be carried is rather heavy and the motion is gyratory which creates a need for a bearing set that can withstand such severe conditions. READ MORE