Sökning: "Tomas Winkler"

Hittade 2 uppsatser innehållade orden Tomas Winkler.

1. 1. Modified train wheel wear calculation for fast calculation

   Master-uppsats, KTH/Spårfordon

   Författare :Shaoyao Chen; [2021]
   Nyckelord :Precise contact point detection; Material Flexibility; Multiple contact points detection; Winkler theory; wear calculation; fast calculation; Exakt detektion av kontaktpunkter; materialflexibilitet; detektering av flera kontaktpunkter; Winkler-teori; förslitningsberäkning; snabb beräkning;

   Sammanfattning : In this thesis, a modified wear calculation method is developed to calculate the train wheel wear, which can give less precise but faster results compared to the classic wear calculation method. This modified method is developed based on the classic wear calculation method developed by Jendel, which uses Hertz theory and Kalker’s simplified theory to calculate the contact variables and uses Achard theory to calculate the wear volume in an iterative manner. LÄS MER

3. 2. Skärsläckaren som röjnings- och släckverktyg för fartyg av kolfiberkomposit

   Kandidat-uppsats, Lunds universitet/Avdelningen för Brandteknik; Lunds universitet/Brandingenjörsprogrammet; Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

   Författare :Tomas Carlsén; Henrik Winkler; [2000]
   Nyckelord :carbon fibre laminate; Cutting extinguisher; HMS Visby; FAST; abrasive; Technology and Engineering;

   Sammanfattning : In this report the cutting extinguisher is evaluated based on the cutting ability of carbon fibre laminate boards and the fire extinguishing ability. Laboratory tests and full scale tests have been carried out. Results from the tests, computer simulations and theories are discussed and compared. Suggestions and demands on improvement are presented. LÄS MER