Sökning: "frequency response functions."

Visar resultat 16 - 20 av 43 uppsatser innehållade orden frequency response functions..

  1. 16. Parameter study of bodywork attachments influencing the chassis dynamics by vibration response analysis

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Anirudh Gururaj Deshpande; [2018]
    Nyckelord :Eigen frequency; modal analysis; frequency response function; damping; Egenfrekvens; modalanalys; rekvensrespons; dämpning;

    Sammanfattning : Bilindustrin är i ständig utveckling och är väl medvetna om de ökande kraven från kundermed avseende på körkomfort och körupplevelse. Lastbilar med tunga laster är ofta utrustademed en påbyggnad, till exempel en låda för pallar och gods, en sopsamlare eller en stödram förbärning av timmer. LÄS MER

  3. 17. Ocean Waves Estimation : An Artificial Intelligence Approach

    Master-uppsats, Mälardalens högskola/Akademin för innovation, design och teknik

    Författare :Andreas Ramberg; [2017]
    Nyckelord :Artificial Intelligence; Case-Based Reasoning; Encounter Angle; Encounter Spectrum; Feedforward Neural Network; Genetic Algorithm; Inverse Problem; Marine Vessels; Master Thesis; MATLAB; Model Parameter Estimation; Ocean Theory; Peak Period; Response Amplitude Operator; Ships; Significant Wave Height; Transfer Function; Wave Spectrum; Waves;

    Sammanfattning : This thesis aims to solve the mathematical inverse problem of characterizing sea waves based on the responses obtained from a marine vessel sailing under certain sea conditions. By researching this problem the thesis contributes to the marine industry by improving products that are using ocean behavior for controlling ship's dynamics. LÄS MER

  4. 18. Modal analysis of pedestrian-induced torsional vibrations based on validated FE models

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Simon Chamoun; Marwan Trabulsi; [2017]
    Nyckelord :Modal analysis; validated FE models; pedestrian-induced vibrations;

    Sammanfattning : Finite element (FE) models serve as the base of many different types of analysis as e.g. dynamic analysis. Hence, obtaining FE models that represent the actual behaviour of real structures with great accuracy is of great importance. LÄS MER

  5. 19. Structure-borne sound transmission in wall-floor timber junctions with damping elastomers

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

    Författare :Sarah Stenberg; Adrien Vercruysse; [2016]
    Nyckelord :Elastomers; Sound Flanking Transmission; Vibrations Flanking Transmission; Wall-floor junctions; Structural Dynamics;

    Sammanfattning : The wooden multi-storey building industry is facing persistent sound transmission problems at low frequencies. Inserting elastomers within wall-floor junctions is common usage nevertheless no accurate studies have elucidated the real behavior of those nonlinear combined materials yet. LÄS MER

  7. 20. FRF Based Experimental – Analytical Dynamic Substructuring Using Transmission Simulator

    Master-uppsats, KTH/MWL Marcus Wallenberg Laboratoriet

    Författare :Krishna Chaitanya Konjerla; [2016]
    Nyckelord :Dynamic substructuring; Transmission Simulator; Modal Analysis; Experimental-Analytical; FRF Based Substructuring; MCFS; Hybrid Coupling;

    Sammanfattning : In dynamic substructuring, a complex structure is divided into multiple substructures that can be analysed individually and these individual component responses are coupled together to obtain the global response of the whole structure. Dynamic substructuring can be performed on substructure models that are identified either experimentally or analytically. LÄS MER