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Visar resultat 1 - 5 av 21 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Fatigue strength assessment of post weld improved welded joints

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Veronika Nerbe; [2023]
    Nyckelord :Mechanics; solid mechanics; lightweight structures; hfmi; weld; Mekanik; hållfasthetslära; lättkonstruktioner; hfmi; svets;

    Sammanfattning : In this thesis work a literature survey is done to collect published data for T-welded joints with a thickness of 5-12 mm, produced in high strength steel and treated with HFMI. In addition to this, large structures are researched. LÄS MER

  3. 2. Forecasting gold returns using principal component analysis from a large number of predictors

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen; Lunds universitet/Statistiska institutionen

    Författare :Fredrik Allgén; [2023]
    Nyckelord :Forecasting; PCA; Gold; ARMA; Business and Economics;

    Sammanfattning : Gold is known in the financial world to be an important asset in unstable periods, especially as a hedge against inflation. If the gold price can be forecasted, it will be possible to strategically invest in gold rather than acquire it as a last-minute hedge against economic downturns. LÄS MER

  4. 3. Forecasting gold returns using principal component analysis from a large number of predictors

    Magister-uppsats, Lunds universitet/Nationalekonomiska institutionen

    Författare :Fredrik Allgén; [2022]
    Nyckelord :Forecasting; Gold; Principal Component Analysis; ARMA; Business and Economics;

    Sammanfattning : Gold is known in the financial world to be an important asset in unstable periods, especially as a hedge against inflation. If the gold price can be forecasted, it will be possible to strategically invest in gold rather than acquire it as a last-minute hedge against economic downturns. LÄS MER

  5. 4. Micro-architectured materials for noise and vibration control in high voltage products – design and modelling

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanik

    Författare :Alec Chamberlain; [2021]
    Nyckelord :Microarchitectured; lattice; elasticity; viscoelasticity; computational; homogenization;

    Sammanfattning : Many Hitachi ABB Power Grids (HAPG) products vibrate and emit noise, but legal limitations of these parameters fuel the development of energy absorption methods used on products. Methods such as Constrained Layer Damping (CLD). LÄS MER

  7. 5. The influence of modelling variables in FEM evaluation of fillet welded structures

    Master-uppsats,

    Författare :Marko Cordasic; [2020]
    Nyckelord :;

    Sammanfattning : Valmet is a world leading company in the pulp-, paper- and energy industry and is a manufacturer of e.g. paper machines. These paper machines are largely composed of steel frames for which beams and plates are often joined by welding. LÄS MER