Sökning: "Drift och underhållsteknik"
Visar resultat 21 - 25 av 94 avhandlingar innehållade orden Drift och underhållsteknik.
21. Mathematical modeling of electromagnetic disturbances in railway system
Sammanfattning : By introduction of modern electronics into railway system, new challenges in understanding the electric and electromagnetic behavior of these systems arise. In this thesis, electromagnetic modeling of electric networks above dielectric and perfect electrically conducting surfaces are studied. LÄS MER
22. Development of information support solutions for complex technical systems using eMaintenance
Sammanfattning : Deployment and use of complex technical systems are common in society and in industry. Many of the complex technical systems have stringent requirements on safety, dependability and cost, which necessitate frequent updates and modification in response to new developments in technology and changing functional requirements. LÄS MER
23. Maintenance strategy for a railway infrastructure in a regulated environment
Sammanfattning : The operation and maintenance of railway infrastructure is complex, strictly regulated by government legislation, and must be working in close cooperation with all the stakeholders including customers involved, in order to avoid sub optimization. The business configuration of the Swedish Railway system makes it very difficult to optimize the entire railway operation, as many times its stakeholders have conflicting demands. LÄS MER
24. Maintenance and continuous improvement of complex systems : linking stakeholder requirements to the use of built-in test systems
Sammanfattning : The failure of a technical system represents two different kinds of change. One change is the degradation of system functions, while the other change is the increase in stakeholder requirements. Hence, information about both stakeholder requirements and system health are necessary in order to properly manage system failures. LÄS MER
25. Methods for availability improvements of a scaling machine system
Sammanfattning : Scaling is the process of cleaning loose material from the roof, face and wall of the mine room in underground mining. The purpose of scaling is to make the mine room safe for the next operation. Due to the nature of the task, scaling has been identified as an operation with a high number of accident occurrences. LÄS MER