Sökning: "Strukturdynamik"

Visar resultat 1 - 5 av 9 uppsatser innehållade ordet Strukturdynamik.

  1. 1. Structural Dynamics at Higher Frequencies using the Finite Element Method : Assessment of Solver Algorithms and Component Mode Synthesis for Dynamic Response Analysis of Large Structures

    Master-uppsats, KTH/Hållfasthetslära

    Författare :Khashaiar Noushin; [2022]
    Nyckelord :;

    Sammanfattning : Scania is making a transition from traditional combustion engines to electric vehicles and therefore developing methodology for high frequency analysis of large structures. The computational time size of results files are impractically high, making any analysis infeasible. LÄS MER

  3. 2. Dynamic analyses of hollow core slabs : Experimental and numerical analyses of an existing floor

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Markus Hansell; Panagiotis Tamtakos; [2020]
    Nyckelord :Hollow core slab; Structural dynamics; Signal analysis; Mode shape; Frequency response function; Complex mode; FE-model; Håldäcksbjälklag; Strukturdynamik; Signalanalys; Modform; Frekvenssvar; Komplex mod; FE-modellering.;

    Sammanfattning : For intermediate floors in residential and office buildings, as well as in parking garages and malls, there is a wide use of hollow core concrete slabs in Sweden today. Hollow core slabs are precast and prestressed concrete elements with cylindrical-shaped voids extending along the length of the slab. LÄS MER

  4. 3. Simulation Method Development for Vehicle Radiated Immunity Test

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Yao Wang; [2019]
    Nyckelord :Vehicle; radiated immunity; EMC; FEM; mesh; antenna;

    Sammanfattning : In the past few decades, on-board electronic devices have been developingtremendously in automotive industry, and it is believed that the trendof electrication and autonomous driving will sustain in the near future.Thus, passenger cars are going to suer from more severe electromagneticenvironment, especially from an EMC's perspective. LÄS MER

  5. 4. Soil-structure interaction for traffic induced vibrations in buildings

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Marcel Hofstetter; Nima Pashai; [2018]
    Nyckelord :Soil-Structure Interaction; Frequency Response Function; Traffic-Induced Vibrations; Structural Dynamics; Signal Processing; Calibration; Jord-strukturinverkan; Frekvenssvarsfunktion; Trafikinducerade Vibrationer; Strukturdynamik; Signalbearbetning; Kalibrering;

    Sammanfattning : Major cities in Sweden experience a population growth, demanding innovative solutions regarding land exploitation for residential housing. One solution is to build closer to existing railway tracks, however difficulties arise regarding determining traffic induced vibrations from trains. LÄS MER

  7. 5. Dynamic Soil-Structure Interaction of a Portal Frame Railway Bridge - Numerical Analysis on a Case Study Bridge

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Rita Ikzer; [2018]
    Nyckelord :Dynamic Analysis; Soil-Structure Interaction; Damping; Railway Bridge; Portal Frame Bridge; Full FE-Modeling; Simplified Modeling; Dynamisk analys; Jord-struktur interaktion; Dämpning; Järnvägsbro; Plattrambro; Detaljerad FE-modellering; Förenklad modellering;

    Sammanfattning : In the field of structural dynamics, a broader knowledge about relevant phenomena that affect the dynamic behavior of railway bridges is vital for structural engineers and design code administrators. The knowledge might benefit in an increased understanding of e.g. the resonance phenomena, and in improvements of the existing design codes. LÄS MER