Essays about: "roller rig"

Showing result 1 - 5 of 7 essays containing the words roller rig.

  1. 1. Design of a test rig for in situ hydrogen charging of rolling element bearings under load

    University essay from Luleå tekniska universitet/Maskinelement

    Author : Oskar Moström; [2023]
    Keywords : tribology; hydrogen embrittlement; mechanical engineering; rolling element bearing; machine elements; design; mechanical design; CAD; mechanical construction; construction; material science; Tribologie; Wasserstoffversprödung; Maschinenbau; Wälzlager; Maschinenelemente; Design; Maschinenkonstruktion; CAD; mechanischer Bau; Konstruktion; Materialwissenschaft; tribologi; väteförsprödning; maskinteknik; rullningselementlager; maskinelement; design; mekanisk design; CAD; mekanisk konstruktion; konstruktion; materialvetenskap; lager;

    Abstract : This Master's thesis is part of the Hydrogen Embrittlement in Rolling element bearings project (HERo) initiated at Luleå University of Technology (LTU), with the primary objective of determining critical hydrogen concentrations in bearing steel for rolling element bearings. The specific aim of this Master's thesis is to design a test rig that enables the investigation of the effects of hydrogen embrittlement on rolling element bearings under load. READ MORE

  3. 2. Design and Evaluation of a Novel Conveyor Utilizing a Screw Mechanism to Move Objects With Integrated Racks

    University essay from KTH/Mekatronik

    Author : Måns Nilsson; Mathias Nils Edvin Nordqvist; [2021]
    Keywords : Screw Conveyor; Intralogistics; Material Handling; Thread Meshing; Worm rack drive; Brushless motor; Skruvtransportör; Intralogistik; Materialhantering; gängingrepp; Snäckskruv och kuggstång; borstlös motor;

    Abstract : Intralogistics, or material handling, traditionally use roller or chain conveyors to moveo bjects and goods in factories and warehouses. One negative aspect of the traditional types of conveyors is that they are expensive, as they are comprised of many moving parts. READ MORE

  4. 3. 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

  5. 4. Dynamic Modelling of the KTH Roller Rig

    University essay from KTH/Spårfordon

    Author : Daniele Mario Fraschini; [2021]
    Keywords : rail vehicle dynamics; roller rig; scaling; track irregularities; validation; modelling; spårfordons dynamik; rullrigg; nedskalning; spårlägesfel; validering; modellering;

    Abstract : The Rail Vehicle Research group at Kungliga Tekniska Högskolan (KTH) is on the path to design and build a scaled test rig called roller rig for research and educational purposes. A roller rig is a device simulating the track with rollers on which the test subject (a wheelset, bogie or even a full vehicle) canbe placed. READ MORE

  6. 5. A Test Rig for Emulating Drive Cycles to Measure the Energy Consumption of HEVs

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

    Author : Meng Ba; [2019]
    Keywords : Roller-rigs; road simulator; fuel consumption; hybrid electric vehicle HEV .;

    Abstract : This master thesis project aims to complete and verify core functions of a test rig that is designed and built to emulate drive cycles for measuring the energy consumption of HEVs, especially a vehicle named ELBA from KTH Integrated Transport Research Lab (ITRL). To fulfill this goal, a simplified model is created for the test rig, whose involved parameters are identified through various experiments. READ MORE