Essays about: "High cycle fatigue"

Showing result 11 - 15 of 30 essays containing the words High cycle fatigue.

  1. 11. Continuous Time Fatigue Modelling for Non-proportional Loading

    University essay from Linköpings universitet/Mekanik och hållfasthetslära

    Author : Sajjan Gundmi Satish; [2019]
    Keywords : Multiaxial Fatigue Loading; Fatigue Analysis; Continuous Time fatigue model; Endurance Surface; Rainflow Counting; Cyclic loading; Cycle Counting; Damage Evolution; High-cycle fatigue; Non-proportional loading;

    Abstract : Fatigue analysis is a critical stage in the design of any structural component. Typically fatigue is analysed during post-processing, but as the size of the analysed component increases, the amount of data stored for the analysis increases simultaneously. READ MORE

  3. 12. Maximum Inverter AC Current Prediction Based on Junction Temperature Calculation

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

    Author : Shuyu Ou; [2019]
    Keywords : IGBT; Inverter; Junction temperature; Current Limiter; IGBT; Växelriktare; Övergångstemperatur; Strömbegränsare;

    Abstract : Semiconductor devices are widely used in the automotive industry, and they are key components of the inverter and the converter in an electric vehicle. Thus, the concern of protecting the inverter and the converter from damaging operation has been raised. The junction temperature is one of the main considerations. READ MORE

  4. 13. Effect of dwell time on stress intensity factor of ferritic steel for steam turbine applications

    University essay from Linköpings universitet/Mekanik och hållfasthetslära

    Author : Ahmed Azeez; [2018]
    Keywords : ;

    Abstract : In the transition from conventional to green energy production resources, steam turbines are used to satisfy the lack of energy during peaks in the demand times and the limited access of renewable resources. This type of usage for steam turbines makes them operate on a flexible schedule, which leads to unpredictable issues related to shorter component life and faster crack propagation. READ MORE

  5. 14. Analysis of Barreling and Tolerance Effects of Blade Attachments

    University essay from KTH/Hållfasthetslära (Avd.)

    Author : Yuanyuan Xu; [2018]
    Keywords : ;

    Abstract : In a gas turbine rotor, the Blade-Disc attachment is often a critical part. This part needs to endure both high contact stress and high temperature. Thus, the prediction of the life of the attachment becomes important.  Furthermore, the refinement of the Blade-Disc attachment is worth to study, to extend the lifetime of the turbine rotor. READ MORE

  6. 15. High cycle fatigue properties of extruded 6060-T6, 6063-T6 and 6082-T6 : Influence of die lines and microstructure on fatigue in flat extruded aluminum profiles

    University essay from KTH/Materialvetenskap

    Author : Sundström Robert; [2018]
    Keywords : fatigue; die lines; microstructure; extruded; extrusion; aluminum; aluminium; Al; AlMgSi; Al-Mg-Si; Mg-Si; Si-Mg; flat profile; 6xxx; 6000; utmattning; mikrostruktur; aluminium; aluminum; Al; AlMgSi; Al-Mg-Si; Mg-Si; Si-Mg; extrusion; extruderat; platt profil; 6xxx; 6000;

    Abstract : Aluminum alloys are of great importance in the automotive and truck industries due to the weight savings that they can help to achieve. However, the use of such alloys in applications where they are subjected to alternating stresses requires knowledge about their fatigue behavior. READ MORE