Essays about: "wheel profiles"

Showing result 1 - 5 of 12 essays containing the words wheel profiles.

  1. 1. Assessment of optimal suspension systems with regards to ride under different road profiles

    University essay from KTH/Fordonsdynamik

    Author : Adithya Murali; Pratik Hindraj Vaje; [2021]
    Keywords : Ride comfort; Handling; Road profiles; ADAMS; Shaping filter method; Sinusoidal approximation method; Coherence; ISO 8608; Acceleration PSD s; Genetic Algorithm optimisation; ISO 2631.; åkkomfort; Kurvkörningsegenskaper; Vägprofiler; ADAMS; Formningsfiltermetod; Sinusformad approximationsmetod; Koherens; ISO 8608; Acceleration PSDs; Genetisk algoritmoptimering.;

    Abstract : Passenger ride vibration comfort is a critical aspect to consider while developing any vehicle and there is a need to understand how the occupants would be affected when driving on different road profile roughness. Hence, road profile generation is critical as road profiles are used as inputs to simulation tools to investigate vehicle dynamic behaviour in depth. READ MORE

  3. 2. Improving the validation of a railway vehicle model in the virtual certification process

    University essay from KTH/Spårfordon

    Author : Bente de Leeuw; [2021]
    Keywords : Rail vehicle dynamics; Rail vehicles; Rail profiles; wheel profiles; model validation; Dynamik; järnvägsfordon; järnvägsprofiler; hjulprofiler; modellvalidering.;

    Abstract : Before vehicles can be placed in service it has to complete an authorisation process. At the moment,this process is largely depended on tests. This is, however, an expensive and long process. With new technologies and improved simulations this process can be shortened and the costs can be lowered. READ MORE

  4. 3. PREVENTION OF WHEEL WEAR, A CASE STUDY : Developing a functioning wheel profile for rail-mounted transportation trolley.

    University essay from Högskolan i Skövde/Institutionen för ingenjörsvetenskap

    Author : Agnieszka Inglot; Oskar Franzén; [2019]
    Keywords : Wear prediction; Rail; Flanged wheel; Archards model; Hertzian contact problem; Abrasive wear; Adhesive wear; Theorethical prediction model;

    Abstract : This bachelor’s degree project aimed to improve the wheel profile of a rail mounted trolley and determine the cause of wheel failure. The proceedings of this project where modelled after an approach for solving wear problems with an emphasis on designing for sustainability. READ MORE

  5. 4. An Attempt Towards FE-Modelling of Fracture Propagation in Railway Wheels

    University essay from KTH/Spårfordon

    Author : Fred Öhnander; [2018]
    Keywords : Railway wheel; Wheel-rail contact; Wear; Fracture initiation; Physical fracture propagation model; FE-model; Fracture mechanics; XFEM; Inclusion; Järnvägshjul; Hjul-räl-kontakt; Slitage; Sprickinitiering; Fysisk sprickbildningsmodell; FE-modell; Frakturmekanik; XFEM; Imperfektion;

    Abstract : The demand for higher velocities and heavier axle loads for freight trains leads to higher forces on the railway wheels which in turn lead to an increase in stresses on and below the surface of the wheel-rail contact. By time, this induces wear on the wheels which consequently lead to higher maintenance costs and in some cases accidents. READ MORE

  6. 5. System-wide LCC Calculation for Novel Brake Block Material in Nordic Condition

    University essay from KTH/MWL Marcus Wallenberg Laboratoriet

    Author : Alfi Hadi Firdaus; [2018]
    Keywords : ;

    Abstract : One of the main issues of cast-iron block brake material is high noise. Nowadays, train operators tend to change the brake block material from cast-iron to composite material. However, composite block brake materials are likely to produce more wear than cast-iron block brakes, degrading the dynamic behavior of the vehicle on the track. READ MORE