Sökning: "wear estimation."

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden wear estimation..

  1. 1. On Simulation of Uniform Wear and Profile Evolution in the Wheel - Rail Contact

    Detta är en avhandling från Stockholm : KTH

    Författare :Roger Enblom; KTH.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wheel-rail contact; wear; wear prediction; wear model; wheel profile; rail; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Sammanfattning : Numerical procedures for reliable wheel and rail wear prediction are rare. Recent development of simulation techniques and computer power together with tribological knowledge do however suggest computer aided wear prediction as possible. LÄS MER

  2. 2. Optimisation of Machining Operations by means of Finite Element Method and Tailored Experiments

    Detta är en avhandling från Stockholm : KTH

    Författare :Amir Malakizadi; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Usui wear model; Bi-metals; Flank wear; Johnson-Cook; Inverse identification; Metal cutting; Thermal fatigue cracking; Wear modelling; Finite element method; Response surface methodology;

    Sammanfattning : Traditionally, costly experimental procedures have been followed in industry to optimise the machining operations to secure the maximum efficiency in production line, while the functional requirements of the machined surfaces are fulfilled. In recent years, development of robust numerical techniques such as Finite Element Method (FEM) and advances in computing capacity of computers have made it possible to simulate the machining operations under operational conditions. LÄS MER

  3. 3. Integrated brake control : downhill driving strategies

    Detta är en avhandling från Stockholm : KTH

    Författare :Peter Lingman; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; transport efficiency; heavy duty trucks; road slope estimation; cruise controller; retardation economy; foundation brakes; mass estimation; brake heat fading; Auxilary brakes; downhill driving strategies; component wear;

    Sammanfattning : In this thesis, downhill driving strategies that co–ordinate the different brake actuators in heavy duty vehicles have been developed. As a starting point, the vehicle features affected by the retardation system are investigated. LÄS MER

  4. 4. Alternatives to pickling : preparation of carbon and low alloyed steel wire rod

    Detta är en avhandling från Örebro : Örebro universitetsbibliotek

    Författare :Peter Gillström; Örebro universitet.; [2006]
    Nyckelord :Mechanical descaling; shot blasting; pickling; steel wire rod; wear; drawing; TECHNOLOGY Other technology Mechanical engineering; TEKNIKVETENSKAP Övriga teknikvetenskaper Maskinteknik; Maskinteknik; Mechanical Engineering;

    Sammanfattning : A well established method for scale removal on hot rolled wire rod is pickling. To avoid pollution problems, the wire rod can be mechanically descaled. By this method, the removed scale can be recirculated to the blast furnace.In batch pickling considerable energy is necessary; e. LÄS MER

  5. 5. Fatigue of Heavy-Vehicle Engine Materials Experimental Analysis and Life Estimation

    Detta är en avhandling från Linköping : Linköping University Electronic Press

    Författare :Viktor Norman; Linköpings universitet.; Linköpings universitet.; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : The heavy-vehicle automotive industry is constantly subjected to higher demands. In particular, new European emission standards are formulated with the intention of improving the environmental friendliness of newly-produced vehicles through reduced exhaust emission. LÄS MER