Sökning: "atlas copco rock tec"

Visar resultat 1 - 5 av 31 uppsatser innehållade orden atlas copco rock tec.

  1. 1. Experimental Procedures for Operational Modal Analysis of a Power Pack on a Drill Rig

    Master-uppsats, Linköpings universitet/Mekanik och hållfasthetslära

    Författare :Oscar Nilsson; [2017]
    Nyckelord :Operational modal analysis; OMA; engine sweep; modal identication; harmonic scaling;

    Sammanfattning : All structures have modal properties such as natural frequencies and damping. In engineeringit is often of interest to estimate these modal properties for certain structures, to be used whenmodelling for example fatigue. This is done by computing them from finite element models, by using experimental measurements or both. LÄS MER

  3. 2. Mesh Mounting Concept for a Mechanical Rock Excavation Machine

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Elin Skoog; [2017]
    Nyckelord :mesh mounting; chain link mesh; rock reinforcement; mine tunnel support; nätmontering; stängselnät; bergförstärkning; tunnelförstärkning;

    Sammanfattning : This report is the result of a Master’s Thesis done at the Machine Design Department at the Royal Institute of Technology. The project was carried out at Svea Teknik AB in cooperation with Atlas Copco Rock Drills AB and the Mining and Rock Excavation division in Örebro. LÄS MER

  4. 3. Conceptual Design of a Cable Attachment Device for a Mining Machine

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Oscar Hällfors; [2017]
    Nyckelord :Cable hanger; mining; kabelupphängning; bergbrytning; kabelhängare;

    Sammanfattning : This report is the result of a master thesis project from the master in machine design at KTH in cooperation with Svea Teknik AB and Atlas Copco Rock Drills AB. Atlas Copco’s department for rock drills and excavation is currently developing a new machine for underground mining. LÄS MER

  5. 4. CORROSION-FATIGUE TESTING ON STEEL GRADES WITH DIFFERENT HEAT AND SURFACE TREATMENTS USED IN ROCK-DRILLING APPLICATIONS

    Master-uppsats, KTH/Materialvetenskap

    Författare :Luis Miguel Béjar; [2016]
    Nyckelord :corrosion fatigue; crack; rotating-bending; S-N curve; staircase method; fatigue strength; shot peening; case hardening; through hardening; fatigue; corrosion; rock drill; atlas copco; steel;

    Sammanfattning : Corrosion fatigue is a common failure mechanism in rock drilling components and many othermechanical parts subjected to cyclic loads in corrosive environments. A crucial part in the design ofsuch components resides in the selection of the right materials for the application, which ideallyinvolves testing and comparison of their performance under working conditions. LÄS MER

  7. 5. Konceptkonstruktion av främre stabilisatorer -För en tunnelborrningsmaskin

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Petter Grelsson; [2016]
    Nyckelord :mechanical rock excavation; propelling; reducing friction; Mekanisk bergavverkning; framdrivning; minska friktion;

    Sammanfattning : Denna rapport är resultatet av ett examensarbete på KTHs master-program för maskinkonstruktion i samarbete med Atlas Copco och Svea Teknik. Atlas Copco utvecklar en tunnelborrningsmaskin som trycker sig framåt och glider på skidor under borrning. LÄS MER