Sökning: "wear calculation"

Visar resultat 1 - 5 av 23 uppsatser innehållade orden wear calculation.

  1. 1. Modified train wheel wear calculation for fast calculation

    Master-uppsats, KTH/Spårfordon

    Författare :Shaoyao Chen; [2021]
    Nyckelord :Precise contact point detection; Material Flexibility; Multiple contact points detection; Winkler theory; wear calculation; fast calculation; Exakt detektion av kontaktpunkter; materialflexibilitet; detektering av flera kontaktpunkter; Winkler-teori; förslitningsberäkning; snabb beräkning;

    Sammanfattning : In this thesis, a modified wear calculation method is developed to calculate the train wheel wear, which can give less precise but faster results compared to the classic wear calculation method. This modified method is developed based on the classic wear calculation method developed by Jendel, which uses Hertz theory and Kalker’s simplified theory to calculate the contact variables and uses Achard theory to calculate the wear volume in an iterative manner. LÄS MER

  2. 2. Automatic monitoring of bins

    Uppsats för yrkesexamina på grundnivå, Högskolan i Halmstad/Akademin för informationsteknologi; Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Jannick Mikkelsen; Larsson Anton; [2020]
    Nyckelord :;

    Sammanfattning : When a pile of scrap at Stena recycling has reached the maximum height, the loader operators need to drive around the facility to check whether or not the pile has to be emptied. This causes a lot of unnecessary driving, resolving in wear to the loaders and loss of time, but mostly the unnecessary use of diesel. LÄS MER

  3. 3. Calibration and Estimation of Dog Teeth Positions in Synchronizers for Minimizing Noise and Wear during Gear Shifting

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

    Författare :Qianyin Kong; [2020]
    Nyckelord :Synchronizer engagement; gear shifting; dog teeth; particle swarm optimization; Synkroniserare; Växling; Dog-teeth; Partikelsvärmoptimering;

    Sammanfattning : Electric motors are used more widely in automotive to reducing emissions in vehicles. Due to the decreased usage of internal combustion engines which used to be the main noise source, impacts from synchronizers cannot be ignored during gear shifting, not only causing noise and wear but also delaying gear shifting completion. LÄS MER

  4. 4. Models for Life Cycle Cost Estimation of Spare and Wear Parts for Urban Gondola Lift Systems : A Case Study

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för ekonomi, teknik och samhälle

    Författare :András Borhidai; [2019]
    Nyckelord :urban gondola lift; cable car; life cycle cost calculation; spare part; wear part; reserve part;

    Sammanfattning : Urban gondola lift systems are becoming a regular sight rather than a rarity throughout the globe. Authors attribute their increasing popularity to factors such as environmental sustainability, operational reliability and cost efficiency compared to other right-of-way transit solutions. LÄS MER

  5. 5. Energy flow model for a scrapper conveyor unit

    M1-uppsats, KTH/Hållbar produktionsutveckling (ML)

    Författare :Meza Kahn André; [2019]
    Nyckelord :Scrapper conveyor unit; behavior model; simulations; energy flow; empty load; full load; Skraptransportör; beteendemodell; simulering; energiflöde; tomgång; full last;

    Sammanfattning : Värmevärden AB is an energy company that distributes district heating. One of their challenges today is to reduce the energy losses and wear that occur in the plant's scrapper conveyor unit. The conveyor belt is in constant motion whether it is transporting fuel or going unloaded at idle. LÄS MER