Essays about: "vortex induced vibrations"

Showing result 1 - 5 of 7 essays containing the words vortex induced vibrations.

  1. 1. Forced response numerical investigation of a transonic compressor rotor

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Mariana Pires Gonçalves Toco Dias; [2023]
    Keywords : Compressor; rotor; blisk; aeroelasticity; aerodynamic damping; CFD; transient; forced response;

    Abstract : The present thesis discusses the forced response of a rotor’s bladed-disk when excited by the periodic force produced by a wake generator, or Inlet Guide Vane (IGV),with 8 equally-spaced blades. These components are part of an axial transonic compressor rig, moreover the Transonic Compressor Darmstadt 1 (TCD1), located at the Technical University of Darmstadt. READ MORE

  3. 2. CFD Analyses for Wind Load AssessmentCFD Analyses for Wind Load Assessment : Wind-induced vibrations in the Bomarsunds Bridge hangers

    University essay from KTH/Bro- och stålbyggnad

    Author : Fatiha El Azrak; [2023]
    Keywords : ;

    Abstract : The trend in recent years of building longer and slender bridge components has introduced new challenges to ensure their stability and strength. This master thesis focuses on the effects of wind-induced vibrations in the context of long, slender arch bridge components, particularly the recently constructed Bomarsunds Bridge in Åland, Finland. READ MORE

  4. 3. Using CFD to investigate casue of vibrations in feed-water system

    University essay from KTH/Strömningsmekanik och Teknisk Akustik

    Author : Maryam Dabbaghitehrani; [2019]
    Keywords : ;

    Abstract : Computational fluid dynamics from large scale thermo-hydraulic simulation in 1D to large eddy simulation in 3D, were applied in this master thesis to study cause of vibrations in a feed-water system downstream the connected pumps. In the first step, the fluid flow of the pumps in RELAP5 simulations was disturbed by the blade passing sinusoidal vibrations to study their propagation in the piping system over time. READ MORE

  5. 4. On Control and stabilisation of floating wind platforms with the help of CFD analysis and the Magnus effect

    University essay from KTH/Numerisk analys, NA

    Author : Georg Neumüller; [2017]
    Keywords : ;

    Abstract : With new technologies and possibilities arising both in the renewable energy sector as well as in the field of Computational Fluid Dynamics, this thesis describes the simulation of vortex- induced vibrations for floating wind turbine platforms. The aim is to control and stabilize floating wind platforms with the help of CFD and the Magnus effect. READ MORE

  6. 5. Investigation of the Lock-in behavior of an eccentrically rotating cylinder in regard to turbomachinery application.

    University essay from KTH/Kraft- och värmeteknologi

    Author : Sina Samarbakhsh; [2014]
    Keywords : Non-synchronous vibration; Vortex-induced vibration; Oscillating cylinder; Vortex shedding; Fluid-structure interaction;

    Abstract : Interaction of fluctuating vortex shedding with blade vibration can lead to a new class of aeromechanical instability referred as Non-synchronous vibrations. Investigating a well-known case that shows similar NSV features such as a circular cylinder can develop the understanding of physics behind NSV. READ MORE