Sökning: "Erik Holmberg"

Visar resultat 21 - 24 av 24 uppsatser innehållade orden Erik Holmberg.

  1. 21. Analysmetoder för rörsystem

    Master-uppsats, Institutionen för ekonomisk och industriell utveckling

    Författare :Erik Holmberg; [2008]
    Nyckelord :rör; bockning; ovalitet; godsförtunning; spänningsanalys; kollaps; FEM; Finita elementmetoden; Abaqus; implicit; explicit;

    Sammanfattning : The purpose of this thesis work is to evaluate how the physical behaviour of a pipe bend is affected by the pipe bending procedure. Effects such as initial ovalization, thinning, thickening and plastic hardening from the bending procedure are examined and the mechanical properties of pipe bends containing these effects are investigated. LÄS MER

  3. 22. Decision Support System for Fault Isolation of JAS 39 Gripen : Development and Implementation

    Magister-uppsats, Institutionen för datavetenskap

    Författare :Anders Holmberg; Per-Erik Eriksson; [2006]
    Nyckelord :Fault Detection Isolation; FDI; Hypothesis Tests; JAS 39 Gripen; Fuel System;

    Sammanfattning : This thesis is a result of the increased requirements on availability and costs of the aircraft Jas 39 Gripen. The work has been to specify demands and to find methods suitable for development of a decision support system for the fault isolation of the aircraft. The work has also been to implement the chosen method. LÄS MER

  4. 23. Static and Dynamic Behaviour of Bolt-channel Joints in Aluminium Structures

    Magister-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Joakim Holmberg; Lars-Erik Rännar; [1998]
    Nyckelord :Aluminium structures; Bolt-channels; Experimental verification; Finite Element Method; Mechanical joints; Modal analysis; Stiffness.;

    Sammanfattning : The static and dynamic behaviour of two different bolt-channel joints in an aluminium structure was studied. Theoretical models showed good agreement with experimental measurements. .. LÄS MER

  5. 24. Static and Dynamic Behaviour of Bolt-channel Joints in Aluminium Structures

    Magister-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Joakim Holmberg; Lars-Erik Rännar; [1998]
    Nyckelord :Aluminium structures; Bolt-channels; Experimental verification; Finite Element Method; Mechanical joints; Modal analysis; Stiffness.;

    Sammanfattning : The static and dynamic behaviour of two different bolt-channel joints in an aluminium structure was studied. Theoretical models showed good agreement with experimental measurements. .. LÄS MER