Sökning: "eigenfrequencies"

Visar resultat 16 - 20 av 49 uppsatser innehållade ordet eigenfrequencies.

  1. 16. Refined model for calculating the dynamic amplification factor for road bridges

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Byggnadsmekanik; Lunds universitet/Institutionen för byggvetenskaper

    Författare :Jens Bergenudd; [2020]
    Nyckelord :Dynamics; Dynamic amplification factor; Dynamic impact factor; Platooning; Soil-structure interaction; Vehicle-bridge interaction; Technology and Engineering;

    Sammanfattning : The objective of the thesis is to simulate and evaluate vehicle-bridge interaction (VBI) due to road surface irregularities and soil-structure interaction (SSI) with different vehicle models and suspension properties. Parameter studies will be carried out for integral and slab bridges. LÄS MER

  3. 17. Simulation and Modelling of Injection Molded Components : Fiber Reinforced Polymers in Powertrain Mounts

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Hanna Jakobsson; [2020]
    Nyckelord :Material modelling; polymer composites; FRP; orthotropic; powertrain mount; vehicle engineering; Digimat; Material modellering; polymera kompositer; ortotropisk; motorupphängnig; Digimat;

    Sammanfattning : Powertrain mounts' purpose is to mount the engine and the gearbox in the car. Besides that, it isolate the body from the powertrain movements and road excitation. The most common material in powertrain mounts bracket is aluminum but lately, fibre reinforced polymer (FRP) has been acting as a substitute for the aluminum. LÄS MER

  4. 18. Green Fuel Simulations

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Daniel Gutiérrez; [2020]
    Nyckelord :Industrial gas turbines; Combustion instabilities; Computational fluid dynamics; Acoustics; COMSOL Multiphysics; Flame transfer function;

    Sammanfattning : Many industries have entered a new global phase which takes the environment in mind. The gas turbine industry is no exception, where the utilization of green fuels is the future to spare the environment from carbon dioxide and NOx emissions. LÄS MER

  5. 19. Vibration Isolation for Electronics on an Autonomous Truck

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för ingenjörsvetenskap

    Författare :Erik Herder; Erik Jenåker; [2020]
    Nyckelord :;

    Sammanfattning : This thesis has been conducted on the behalf of Volvo Autonomous Solutions. Volvo autonomous Solutions is a part of the Volvo Group.The purpose of this thesis was to give a suggestion on an isolation system for the automated driving-system kits in autonomous trucks. LÄS MER

  7. 20. Vibration analysis of a fast response brushless excitation system

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Elektricitetslära

    Författare :Emma Pålsson; [2019]
    Nyckelord :vibrations; frequency analysis; FRBE; controlled rectification; hydropower; exciter; generator; fast response;

    Sammanfattning : The aim of this study is to measure and analyze vibrations on a fast response brushless exciter (FRBE) at a real hydropower plant and identify vibration origins through frequency analysis. Moreover, the observed vibrations are evaluated in relation to generator vibration standards and estimated tangential eigenfrequencies of the studied FRBE. LÄS MER