Sökning: "railway"
Visar resultat 21 - 25 av 455 avhandlingar innehållade ordet railway.
21. Temperature Stability of Railway Wheel Steels - Influence on Microstructure and Mechanical Properties
Sammanfattning : Being the single component transferring load and traction from the vehicle to the rail, the selection of materials and structural properties of railway wheels are critical. Carbon steel with a pearlitic microstructure is the most commonly used material due to its high strength, low cost and good wear properties. LÄS MER
22. On the Dynamics of Porous Media - Application to Road and Railway Structures
Sammanfattning : Load-bearing road and railway structures normally consist of layers of particulate porous materials, often with bitumen-based binders. The layered system is subjected to dynamic loading from traffic, which inevitably causes material deterioration that enhances permanent surface deformation. LÄS MER
23. Railway tread braking temperatures - Numerical simulation and experimental studies
Sammanfattning : Tread (block) braking is still one of the most common braking systems on railway vehicles. The action is carried out by pressing brake blocks against the tread of a wheel, which is also in rolling contact with the rail. LÄS MER
24. Tread Braking of Railway Wheels - Noise-related Tread Roughness and Dimensioning Wheel Temperatures
Sammanfattning : Block braking is a commonly used braking system for freight wagons and other types of railway vehicles. One or several brake blocks are pressed against the tread (running surface) of the wheel, which is also in rolling contact with the rail. LÄS MER
25. Regulatory Reforms, Railway Organisation and Cost Efficiency - A Study of the Swedish Model
Sammanfattning : .... LÄS MER