Essays about: "Permanent deformation"

Showing result 1 - 5 of 21 essays containing the words Permanent deformation.

  1. 1. Characterizing coil windings noise due to compressive fault currents : A study to determine if there is a characteristic noise from transformer windings due to fault currents

    University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Author : Simon Lundgren; [2022]
    Keywords : Transformer windings; short circuit forces; current pulses; microphone; Comsol Multiphysics; FFT; Transformator lindningar; strömpulser; mikrofon; kortslutingskrafter; Comsol Multiphysics; FFT;

    Abstract : Transformers are essential for modern power distribution system. They are efficient and enable the voltages to be transformed up for transportation of electricity and back down for consumer use. The reliability of the transformer is affected by faults and fatigue of the copper. READ MORE

  3. 2. Continuum damage modeling of delamination in paperboard

    University essay from Lunds universitet/Institutionen för byggvetenskaper; Lunds universitet/Hållfasthetslära

    Author : Erik Jakobsson; [2021]
    Keywords : Creasing; Folding; MD-direction; EB material model; LS-Dyna; eGISSMO; Technology and Engineering;

    Abstract : This work concerns the creasing and folding of a continuum paperboard material model developed by Eric Borgqvist. Creasing is an operation that induces permanent deformation in the material, undertaken for the folding to be performed along a straight fold line without any in-plane cracks. READ MORE

  4. 3. Investigating strains on the Oseberg ship using photogrammetry and finite element modeling

    University essay from Uppsala universitet/Tillämpad mekanik

    Author : Andreas Eriksson; Erik Thermaenius; [2020]
    Keywords : Oseberg ship; strain; strain analysis; mechano-sorptive strains; Delaunay triangulation; finite element analysis;

    Abstract : The Oseberg ship is known as one of the finest surviving artifacts from the Viking age, with origins dated back to the 800s. The ship has been displayed in the Viking ship museum in Oslo since 1926. The nearly 100 years on museum display along with the over 1000 years it was buried has weakened the structure of the ship. READ MORE

  5. 4. Deformation monitoring using GNSS:A study on a local network with preset displacements

    University essay from Högskolan i Gävle/Samhällsbyggnad

    Author : Peshawa Mohammed; [2019]
    Keywords : Deformation detection; processing parameters; GNSS; online post-processing;

    Abstract : In the past two decades, the number of observations and the accuracy of satellite-basedgeodetic measurements like Global Navigation satellite systems (GNSS) greatly increased,providing measured values of displacements and velocities of permanent geodetic stations.Establishment of the geodetic control networks and collecting geodetic observations, indifferent epochs, are a commonly used method for detection of displacements andconsequently disaster management. READ MORE

  6. 5. Volume-Preserving Deformation of Terrain in Real-Time

    University essay from Linköpings universitet/Informationskodning

    Author : Jesper Persson; [2019]
    Keywords : Computer graphics;

    Abstract : Deformation of terrain is a natural component in real life. A car driving over a muddy area creates deep trails as the mud gives room to the tires. A person running across a snow-covered field causes the snow to deform to the shape of the feet. READ MORE