Sökning: "buckling"

Visar resultat 11 - 15 av 144 uppsatser innehållade ordet buckling.

  1. 11. A parametric study of the static and dynamic performance of timber arch footbridges with different hanger configurations

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :ALEJANDRO GARCÍA GARCÍA; [2022]
    Nyckelord :Arch bridges; footbridge dynamics; critical load; bridge typology; parametric study;

    Sammanfattning : The influence of the hanger configuration in the arch and deck bending moments under asymmetric loads is widely used nowadays for improved designs of arch bridges. In this work, by means of a parametric study, those hanger configurations that most efficiently increase both the natural frequencies and buckling factors are identified, simultaneously evaluating the dynamic and static performance of timber arch footbridges. LÄS MER

  3. 12. Framtagning av en Vakuumisolerad kryotank

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Linus Höber; [2022]
    Nyckelord :kryotank; vakuumisolerad; flytande väte; Umeå universitet;

    Sammanfattning : I dagens samhälle är flygplan det snabbaste och ibland ett livsviktigt transportmedel. Med nutidens teknologi är det inte möjligt att tillverka ett passagerarflygplan som drivs av el då det skulle bli för tungt. Elen produceras av bränsleceller som drivs av vätgas. LÄS MER

  4. 13. Optimization of structures byincluding modeling of pilefoundations : A parametric study on using stiff supports orpiles in a model

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Alexander Koba; [2022]
    Nyckelord :;

    Sammanfattning : Structural engineers use rules and regulations in the form of Eurocodes and other supplementary guidelines to design different type of structures. However, the uncertainty surrounding each case and the actual outcome that depends on decisions made throughout the design phase are of most importance and must be handled properly from start. LÄS MER

  5. 14. Global buckling of subsea pipelines with DEH cable

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Anders Meurk; [2022]
    Nyckelord :Solid Mechanics; Global Buckling; Subsea Pipelines; DEH cable; Hållfasthetslära; Global Buckling; Undervattensrörledningar; DEH kabel;

    Sammanfattning : Hydrates, wax, and other fluids forms in cold subsea pipelines which restrict flow of petroleum products during operation. This thesis analyses the global buckling behaviour of subsea pipelines with Direct Electric Heating cables (DEH) through a combination of analytical and FEM simulations. LÄS MER

  7. 15. A comparative evaluation of hydrostatic pressure and buckling of a large cylindrical steel tank designed according to EN14015 and according to the Eurocodes

    Master-uppsats, Linnéuniversitetet/Institutionen för byggteknik (BY)

    Författare :Musole Kambita; [2022]
    Nyckelord :Cylindrical steel tanks; yield strength; carbon steel; high strength steel; design load; buckling; stiffening rings; Finite Element Method FEM ; Linear Elastic Bifurcation LBA ; and Geometrically and Materially Nonlinear Analysis with Imperfections GMNIA .;

    Sammanfattning : Above ground steel storage tanks are used worldwide for the storage of various liquids. EN 14015:2005, which has traditionally been used to design the tanks, does not necessarily fulfil the requirements of the Swedish Building Code. LÄS MER