Sökning: "Mobile miner"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Mobile miner.

  1. 1. Dimensioning of a cutter wheel bearings

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Kebin Xie; [2020]
    Nyckelord :cutter wheel; bearing; wear; scuffing; Archard equation; lubrication number; Reynold equation; Hertzian contact theory; impact load factor; FE model; Ansys; contact pressure on bearing;

    Sammanfattning : Mobile Miner 40V is a machine used for rock excavation and developed by Epiroc. This machine is equipped with a large cutter wheel to perform the excavation. After a test run, some surfaces associated with bearings within the cutter wheel were found to be damaged due to scuffing - severe sliding wear. LÄS MER

  3. 2. Load modelling of a mobile miner

    Master-uppsats, KTH/Strömningsmekanik och Teknisk Akustik

    Författare :Rafail-Nikolaos Dimitriou; [2020]
    Nyckelord :;

    Sammanfattning : In the mining industry, finite element analysis (FEA) and experimental tests are essential for the verification of mechanical properties and for performing parametric studies. Such practices require lots of resources and, sometimes, long computational time. LÄS MER

  4. 3. Konceptuell konstruktion av en koppling för mekanisk bergavverkningsmaskin.

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

    Författare :Johan Erkers; Peter Ekroth; [2019]
    Nyckelord :Mechanical rock excavation; degrees of freedom; stability triangles.; Mekanisk bergavverkning; frihetsgrader; stabilitetstrianglar.;

    Sammanfattning : Examensarbetet har skett inom mastersprogrammet Maskinkonstruktion på KTH. Arbetet gjorde tillsammans med Epiroc genom Svea Teknik AB. I dagens gruvarbete använder nästan alla borr- och sprängteknik, men det finns stora problem med detta. LÄS MER

  5. 4. Secure Bitcoin Wallet

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Sevil Guler; [2015]
    Nyckelord :Android; Security; Bitcoin; Mobile Payment; Java; Instant Messaging; Wallet; BTC; Virtual Currency; Cryptography; Push Notification; PKI; Shared Preference; SQLite; Security Architecture; Software Development; Mobile Development; Public Ledger; Miner;

    Sammanfattning : Virtual currencies and mobile banking are technology advancements that are receiving increased attention in the global community because of their accessibility, convenience and speed. However, this popularity comes with growing security concerns, like increasing frequency of identity theft, leading to bigger problems which put user anonymity at risk. LÄS MER

  7. 5. A tramming concept for a mechanical rock excavation machine

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Sara Blomqvist; [2015]
    Nyckelord :Tramming; Propelling; Mechanical rock excavation; Tramming; Propellering; Mekanisk bergavverkning;

    Sammanfattning : This report is the result of a thesis project at KTH in cooperation with Svea Teknik AB and Atlas Copco Mining and Rock Excavation. Atlas Copco is currently developing a family of machines for mechanical rock excavation. All machines in the family have two propulsion methods. LÄS MER