Essays about: "torsion."

Showing result 1 - 5 of 60 essays containing the word torsion..

  1. 1. Investigation of torsion modes in overhead traveling cranes: : Reviewing the ISO 22980 standard

    University essay from Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Author : Simon Jens; [2023]
    Keywords : Overhead traveling crane; Finite element method; Frequency and experimental vibration analysis; Travers; finita elementmetod; egenfrekvensanalys; experimentell vibrationsanalys;

    Abstract : Overhead cranes and rail mountings in the wall are subjected to vibrations whenlifting equipment. The purpose of this thesis is to review if the minimum frequencyvalue for cranes, according to the ISO 22986:2007 standard is conservative whendesigning overhead traveling cranes. READ MORE

  3. 2. Dystoki hos sto : 138 fall vid tre djursjukhus i Sverige (2006-2022)

    University essay from SLU/Dept. of Clinical Sciences

    Author : Elin Olsson; [2023]
    Keywords : dystoki; häst; sto; föl; förlossning; kejsarsnitt;

    Abstract : Dystokin hos hästen beskrivs ofta i litteraturen som ”a true emergency”. Få andra akutfall, om några, är så akuta i hästpraktiken. För fölet handlar det om liv eller död – de häftiga kontraktionerna hos stoet gör att syrebrist hos fölet uppstår snabbt. READ MORE

  4. 3. Comparison of finite element modelling techniques applied on Gripen structure

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

    Author : Mathias Goodhe; [2023]
    Keywords : Finite element method; FEM; Global FEM; Detailed FEM;

    Abstract : The goal of the thesis was to investigate and compare internal loads and bolt loads from different modelling methods using finite element method, from global to detailed, applied to a topologically correct air brake of a JAS 39 Gripen. The finite element method is a common used method for analysing strength properties of different structures. READ MORE

  5. 4. Investigation of case hardened steel subjected to torsion: An experimental and numerical elastic-plastic material study

    University essay from KTH/Hållfasthetslära

    Author : Jonathan Fridstrand; [2022]
    Keywords : Torsion; Shear stress-strain relation; Elastoplastic material; Case hardened steel; Custom material model; Vridning; Skjuvtöjning och -spänning; Elastiskt-plastiskt material; Sätthärdat stål; Anpassad materialmodell;

    Abstract : There is currently a knowledge gap regarding the plastic material properties of many steel types that Atlas Copco use in their high torque power tools. This makes it difficult to fully utilise the capabilities of the Finite Element Method (FEM) to aid the developmental process. READ MORE

  6. 5. Study of hole mobility in amorphous polyethylene via kinetic Monte Carlo methods

    University essay from KTH/Matematik (Avd.)

    Author : Hannes Aspåker; [2022]
    Keywords : ;

    Abstract : This thesis presents a study of hole mobility in amorphous polyethylene using kinetic Monte Carlo (KMC) methods together with a novel chain segmentation model developed by Unge and Nilsson, which determines hole localization sites based on torsion angles along the polymer chain. An extension to the KMC algorithm was developed which improves performance by modelinground-trips between strongly interconnected localization sites. READ MORE