Essays about: "kontaktmekanik"
Found 4 essays containing the word kontaktmekanik.
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1. Additives in a steam engine to decrease friction : Friction testing of solid lubricants in powder form
University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)Abstract : This thesis aims to investigate the coefficient of friction between steel on steel contacts with the addition of solid lubricants such as h-BN, WS2, MoS2 in powder form, in dry conditions and wet conditions. More specifically, the purpose is to enhance the sliding between the piston rings and cylinder block in a modern high temperature steam engine developed by RANOTOR. READ MORE
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2. Modeling of a ball contact with a coated plate
University essay from KTH/Skolan för industriell teknik och management (ITM)Abstract : During tightening of a screw, the variation in friction will affect the force acting on the joint, especially when tightening using torque as a control parameter. So, it is crucial to have a proper understanding of the contact mechanism and friction in the screw head to joint and thread interfaces. READ MORE
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3. Investigate the track gauge widening on the Iron-ore line and suggest maintenance limits
University essay from KTH/SpårfordonAbstract : Iron ore export remains a major player in the Swedish economy to date, with 90% of all iron ore produced in Europe stemming from the relatively small northern country. A large amount of this ore is transported from the mines to harbours for world-wide freight on railways. READ MORE
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4. Design and Development of a Micropitting Test Rig
University essay from KTH/Maskinkonstruktion (Inst.)Abstract : One of the common failure modes in rolling contacts, such as in gears and rolling element bearings, is micropitting which has become a big issue. It is considered as a fatigue indicator and can lead to premature gear and bearing failure. READ MORE