Sökning: "Thermomechanical simulation"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Thermomechanical simulation.

  1. 1. Implementation of thermomechanical laser welding simulation : Predicting displacements of fusing A AISI304 T-JOINT

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för ingenjörsvetenskap

    Författare :Anton Rolseth; Anton Gustafsson; [2021]
    Nyckelord :Laser welding; Finite element method; ABAQUS; Thermomechanical simulation; Heat source models; DFLUX; Element activation;

    Sammanfattning : Laser welding is an advanced joining technique with the capability to form deep, narrow, and precise welds. Numerical models are used to simulate the process in attempts of predicting distortions and stresses in the material. This is done to reduce physical testing, optimize processes and enable integrated product- and process development. LÄS MER

  3. 2. Thermomechanical stress analysis of the main insulation system of traction electrical machines

    Uppsats för yrkesexamina på avancerad nivå, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Dahman Ismail; Alexis Andrei; [2020]
    Nyckelord :finite element analysis; thermo-mechanical stress; heavy-duty vehicle; electrical machine; insulation system; coupled-temperature displacement analysis; finita element analys; termomekaniska spänningar; lastbilar; elektriska motorer; isolering; termisk kopplingsförbindelse;

    Sammanfattning : More efficiency heavy-duty vehicles are developed with higher range, updated electronic and mechanical parts. The fuel efficiency and pollution of carbon dioxide need to be lower to achieve new EU regulations. The global population increases with an increased number of heavy-duty vehicles. This, in turn, increases the emission. LÄS MER

  4. 3. Simulation of the field generated by an array antenna with misplaced radiators

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Mathis Larue; [2020]
    Nyckelord :;

    Sammanfattning : An array antenna is designed and commanded assuming a perfect positioning of the radiators. However, it is technically impossible to actually place each element in the exact position (mechanical, assembly errors and thermodynamic efforts), which generates errors in aim, amplitude and shape of the main beam while increasing the sidelobes. LÄS MER

  5. 4. Thermo-Mechanical Fatigue Assessment of Marine Boiler : Using linear Finite Element Analyses

    Magister-uppsats, Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Författare :Adefemi Samuel Alagbada; [2020]
    Nyckelord :Marine Boiler; FEA; Thermo-mechanical Loading; LEFM; Paris law; Flaws; RAO.;

    Sammanfattning : This thesis is on fatigue crack growth assessments of a thermomechanical loaded Marine Boiler- Sunrod CPDB12. The installation position of the marine boiler in the ship in relation to its fatigue life under mode 1 loading is investigated. LÄS MER

  7. 5. Material parameter study for aheavy-vehicle exhaust manifoldusing the finite element method : to increase component lifetime and decrease its environmental impact

    Master-uppsats, Linköpings universitet/Konstruktionsmaterial

    Författare :David Ek; [2019]
    Nyckelord :Thermomechanical fatigue; TMF; material parameter study; finite element method; FEM;

    Sammanfattning : The thesis originates from a need to meet stricter environmental regulations for Scania, to reduce fuel consumption and emission from heavy-vehicles. Scania aims to fulfil these requirements by increasing combustion pressure and temperature. These conditions are tougher for the engine components and they shorten their lifetime. LÄS MER