Sökning: "elastic mat"

Hittade 3 uppsatser innehållade orden elastic mat.

  1. 1. Evaluation of Peridynamics and Its Application in Harmonic-Structured Material Simulations

    Master-uppsats, Lunds universitet/Mekanik

    Författare :Theodor de Sousa; [2020]
    Nyckelord :peridynamics; peridigm; harmonic-structured materials; computational mechanics; fracture modelling; Technology and Engineering;

    Sammanfattning : Materials are constantly sought to be improved in different manners. Two of the most common characteristics to improve are strength, and ductility. Historically, materials are modified homogeneously to achieve improvement, while the past century has also seen composite materials becoming standard-issue within various industries. LÄS MER

  3. 2. Railway bridges with floating slab track systems : Numerical modelling of rail stresses - Dependence on properties of floating slab mats

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Byggkonstruktion och -produktion

    Författare :Daniel Kostet; [2018]
    Nyckelord :ballasted track; bridge; elastic mat; expansion; finite element method FEM ; finite element analysis FEA ; floating slab mat; interaction; International union of railways UIC ; non-ballasted track; SOFiSTiK; ballasterat spår; ballastfritt spår; bro; dilatationsfogar; finita elementmetoden FEM ; finit elementanalys FEA ; fixerat spår; interaktion; Internationella järnvägsunionen UIC ; SOFiSTiK; vibrationer; vibrationsdämpande matta;

    Sammanfattning : The increased use of continuously welded rails in the railway systems makes it necessary to increase the control of the rail stresses to avoid instability and damages of the rails. Large stresses are especially prone to appear at discontinuities in the railway systems, such as bridges, due to the interaction between the track and the bridge. LÄS MER

  4. 3. Analysis Methods for Structures with Visco-Elastic Damping Treatment

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Joakim Sandin; [2016]
    Nyckelord :Vibrations; Damper Mat; FE-Model; Constrained Layer Damping; Vibrationer; Dämpningsmatta; FE-Modell; Constrained Layer Damping;

    Sammanfattning : During aircraft development, the impact of vibrations is examined and how this affects the aircraft structure under different conditions. Those vibrations can damage electronic equipment that are installed within the fuselage and can even lead to material fatigue within the structure. LÄS MER