Essays about: "added mass and damping"

Showing result 1 - 5 of 18 essays containing the words added mass and damping.

  1. 1. Experimental Investigation of Fluid-added Parameters on a Kaplan Runner

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Malin Strandberg; [2021]
    Keywords : Added mass; added inertia; fluid dynamics; hydropower; Kaplan turbine; fluid-solid interaction;

    Abstract : In order to reach climate and environmental goals, Sweden is increasing the implementation of intermittent renewable energy sources such as wind and solar power to the electricity grid. The increase of intermittent energy sources is rising power regulation requirement towards hydropower, which increasingly exposes the hydraulic turbines to high loads and fluctuating hydraulic forces. READ MORE

  3. 2. Numerical and experimental dynamic analyses of the Vega Pedestrian bridge including seasonal effects

    University essay from KTH/Bro- och stålbyggnad

    Author : John Hallak Neilson; [2019]
    Keywords : ;

    Abstract : As timber structures become increasingly relevant and sought after – since they enable improvements in building time while reducing a structure’s life cycle impacts – streamlining their design can have meaningful economic and environmental implications.For timber footbridges, its design is frequently governed by serviceability criteria linked to excessive vibrations. READ MORE

  4. 3. Numerical and experimental dynamic analyses of the Vega Pedestrian bridge including seasonal effects

    University essay from KTH/Bro- och stålbyggnad

    Author : John Peter Hallak Neilson; [2019]
    Keywords : Structural dynamics; Timber structures; Seasonal effects; Asphalt; Footbridges; Arch bridges; Dynamic analysis;

    Abstract : As timber structures become increasingly relevant and sought after – since they enable improvements in building time while reducing a structure’s life cycle impacts – streamlining their design can have meaningful economic and environmental implications. For timber footbridges, its design is frequently governed by serviceability criteria linked to excessive vibrations. READ MORE

  5. 4. Experimental Investigation of Added Mass and Damping on a Model Kaplan Turbine for Rotor Dynamic Analysis

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Timmy Nyman; [2018]
    Keywords : Added mass; added damping; rotor dynamics; kaplan turbine; vibrations; fluid dynamics;

    Abstract : The concept of added hydrodynamic properties such as added mass is of importance in modern hydropower development, mainly for rotor dynamic calculations. Added mass could result in reduced natural frequencies and altered mode compared to existing simulation models. READ MORE

  6. 5. Application of the open sourcecode Nemoh for modelling ofadded mass and damping in shipmotion simulations

    University essay from KTH/Marina system

    Author : Emil Andersson; [2018]
    Keywords : ;

    Abstract : Two different numerical tools were considered, the first one is a seakeeping method developed by KTH Ship Dynamics Research Program. It utilizes strip theory and Lewis forms and is further addressed as SMS. READ MORE