Sökning: "drift och underhåll"
Visar resultat 1 - 5 av 135 avhandlingar innehållade orden drift och underhåll.
1. KPI framework for maintenance management through eMaintenance : Development, implementation, assessment, and optimization
Sammanfattning : Performance measurement is critical if any organization wants to thrive. The motivation for the thesis originated from the project “Key Performance Indicators (KPI) for control and management of maintenance process through eMaintenance (in Swedish: Nyckeltal för styrning och uppföljning av underhållsverksamhet m h a eUnderhåll)”, initiated and financed by a mining company in Sweden. LÄS MER
2. Two-Level Multi-Objective Genetic Algorithm for Risk-Based Life Cycle Cost Analysis
Sammanfattning : Artificial intelligence (AI) is one of the fields in science and engineering and encompasses a wide variety of subfields, ranging from general areas (learning and perception) to specific topics, such as mathematical theorems. AI and, specifically, multi-objective genetic algorithms (MOGAs) for risk-based life cycle cost (LCC) analysis should be performed to estimate the optimal replacement time of tunnel fan systems, with a view towards reducing the ownership cost and the risk cost and increasing company profitability from an economic point of view. LÄS MER
3. Prognostics and Health Management of Engineering Systems for Operation and Maintenance Optimisation
Sammanfattning : Prognostics and health management (PHM) is an engineering discipline that aims to maintain system behaviour and function and ensure mission success, safety and effectiveness. Prognostics is defined as the estimation of remaining useful life. LÄS MER
4. Studium av obliteration och viskositet : obliteration av vattenbaserade hydraulvätskor och mineraloljor samt viskositet för emulsioner vid plan Poiseuille strömning
Sammanfattning : .... LÄS MER
5. Automation of Load Haul Dump machines : comparative performance analysis and maintenance modeling
Sammanfattning : The Load Haul Dump (LHD) machine and its operating environment create a complex system. Mine productivity depends on the operation of the LHDs and on the mining environment, including fragmentation, size of boulders, navigation techniques etc. Traditional navigation techniques require a lot of infrastructure to accommodate automatic operation. LÄS MER