Sökning: "rail inspection"
Visar resultat 1 - 5 av 9 avhandlingar innehållade orden rail inspection.
1. Train Based Automated Inspection for Railway Fastening System
Sammanfattning : Rail transportation is a sustainable mode of transportation and is a key enabler of the socio-economic development of modern society through passenger and freight services. Growth in overall transport demand has led to railways experiencing higher demand on operational capacity, service quality, and safety. LÄS MER
2. Non-destructive measurement of near-surface cracks in railheads : with focus on ultrasonic inspections
Sammanfattning : Near-surface cracks in railhead that caused by rolling contact fatigue (RCF) is one of a kind rail defects that degrade rail track quality. Dependent on the trail load, the cracks can reach to severe level quickly. LÄS MER
3. A study of the rail degradation process to predict rail breaks
Sammanfattning : Rail infrastructure is a large and costly investment, and has a long life. To realize the benefits from this investment, effective maintenance is required. LÄS MER
4. Towards Model-Based Condition Monitoring of Railway Switches and Crossings
Sammanfattning : Railway switches and crossings (S&C, turnouts) connect different track sections and create a railway network by allowing for trains to change between tracks. This functionality comes at a cost as the load-inducing rail discontinuities in the switch and crossing panels cause much higher degradation rates for S&C compared to regular plain line track. LÄS MER
5. Reliability analysis and cost modeling of degrading systems
Sammanfattning : Degradation is an on-going process in systems, equipments and components subjected to various stresses and adverse operating conditions. The factors influencing the degradation process may adversely affect the system or component performance. LÄS MER