Sökning: "Fretting"
Visar resultat 1 - 5 av 11 uppsatser innehållade ordet Fretting.
1. Fretting fatigue life analysis for a gas turbine compressor blade-disk material combination
Master-uppsats, KTH/HållfasthetsläraSammanfattning : In order to analyse fretting fatigue life of dove-tail joints used in the compressor stage of a gas turbine, experimental study of different material combinations was conducted using rectangular fatigue specimen and bridge type pads. Specimen and pad interaction was simulated numerically and obtained results was used as input for 2 different crack propagation life prediction methods. LÄS MER
2. Fretting in Wind Power Pitch Bearings: Micro-Slip Experiments and Bearing Test Rig Design
Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)Sammanfattning : Wind power is the fastest-growing form of green energy production in Europe, today accounting for 15% of the total power demand with 100.000 turbines installed. LÄS MER
3. Jämförelse av två konstruktionslösningar för en hjulaxel till en åkattraktion
Kandidat-uppsats, Högskolan i Skövde/Institutionen för ingenjörsvetenskapSammanfattning : Detta arbete genomförs på uppdrag av Skara Sommarland. Arbetet är till stor del baserat på att utföra en jämförande studie mellan två hjulaxlar till en åkattraktion. Den befintliga axeln består av tre delar, två axelpar och ett centerfäste, medan den nya designen av axeln enbart består av en del. LÄS MER
4. Analysis of Barreling and Tolerance Effects of Blade Attachments
Master-uppsats, KTH/Hållfasthetslära (Avd.)Sammanfattning : 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. LÄS MER
5. Fretting tests on connector terminals
Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknikSammanfattning : Fretting is a complex set of mechanical and electrical mechanics that occurs at the contact surface between two vibrating objects. It is widely present in electrical connectors close to combustion engines due to the constant exposure to vibrations. Fretting is an extensive problem in the automotive industry but little research is done. LÄS MER