Essays about: "wear out"

Showing result 1 - 5 of 180 essays containing the words wear out.

  1. 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)

    Author : Viktor Lange; [2023]
    Keywords : Tribology; friction; wear; steam; steam engine; ranotor; invencon; invencon AB; steel; contact mechanics; hexagonal boron nitride; molybdenum disulfide; tungsten disulfide; lubricants; solid lubricants; Tribologi; friktion; nötning; ånga; ångmotor; stål; kontaktmekanik; smörjning; smörjmedel; fasta smörjmedel;

    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

  3. 2. Rum för barn : ett gestaltningsförslag för Vaksalaskolans skolgård samt omgivande gaturum som ger plats för barn och unga

    University essay from SLU/Dept. of Urban and Rural Development

    Author : Klara Allenmark; Linnea Modalen Sjökvist; [2023]
    Keywords : Skolgård; samnyttjande; barnkonventionen; gaturum; lekvärden; lekgata; miljöerbjudande; rörelsefrihet;

    Abstract : 88% av Sveriges befolkning bor i tätorter, vilket endast utgör 1,3 % av Sveriges totala yta. Urbaniseringstrenden förväntas fortsätta och barns miljöer är de som försvinner först då konkurrensen om ytan är stor. Då barn spenderar majoriteten av sin vakna tid på skolan, får skolgården en allt viktigare roll i barns uppväxtmiljö. READ MORE

  4. 3. A deep learning approach for drilling tool condition monitoring in Raiseboring

    University essay from Uppsala universitet/Institutionen för informationsteknologi

    Author : Hedaya Alyousif; [2023]
    Keywords : drilling tool condition; deep learning; drilling signals; CNN; spectrogram; Raisboring;

    Abstract : Drilling tool wear can significantly affect the performance of the drilling operation and add extra cost to it. Accurate detection of drilling tool condition is very important for enabling proactive maintenance, minimizing downtime, and optimizing drilling processes. READ MORE

  5. 4. DIAGNOSING ETHERNET CABLES USING TIME DOMAIN REFLECTOMETRY IN ETHERNET CIRCUITS

    University essay from Mälardalens universitet/Akademin för innovation, design och teknik

    Author : Anton Sundqvist; [2023]
    Keywords : ;

    Abstract : Ethernet cables are a vital component in modern systems, providing reliable data transmission between devices. However, like any other physical component, these cables are subject to wear and tear. Depending on several factors, this wear and tear can happen at different rates, and unplanned stops in a system must be avoided. READ MORE

  6. 5. Analysis of high-voltage low-current DC/DC converters for electrohydrodynamic pumps

    University essay from Uppsala universitet/Institutionen för elektroteknik

    Author : Sigge Axelsson; Jonas Gartner; Axel Stafström; [2023]
    Keywords : high-voltage; low-current; low-power; DC DC; DC-DC; high-gain; converter; electrohydrodynamic pump; EHD; transformerless converter; Royer-based converter; resonant Royer oscillator; Cockroft-Walton voltage multiplier; CWVM; voltage multiplier; series-connected positive-negative voltage multiplier; SPNVM; planar air-core transformer; planar transformer; high-freqency Royer-based converter; overcurrent protection; LT8331; gallium nitride; GaN; planar PCB-integrated transformers;

    Abstract : Moving parts cause vibrations and tend to wear out. In applications where maintenance is complicated, solutions without moving parts are therefore advantageous. Electrohydrodynamic pumps are such a solution. Instead of mechanical propulsion, they use strong electric fields to induce movement in a dielectric cooling liquid. READ MORE