Search for dissertations about: "thesis on preventive maintenance"

Showing result 1 - 5 of 60 swedish dissertations containing the words thesis on preventive maintenance.

2. 1. Continuous Preventive Bridge Maintenance : Effect of High Pressure Washing on Concrete Bridges

   Author : Louise Andersson; Johan Silfwerbrand; Anders Selander; Ylva Edwards; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bridge maintenance; preventive maintenance; chloride ingress; high-pressure washing; Concrete Structures; Betongbyggnad;

   Abstract : In Sweden, as in many other countries, preventive maintenance of structures andbridges is considered important. It provides several benefits such as prolonged lifespan or service life, less need for repair, and hopefully reduced costs and lowerenvironmental impact.A large part of Sweden’s bridge stock is getting quite old. READ MORE

4. 2. Cost Effective Maintenance for Competitve Advantages

   Author : Imad Alsyouf; Basim Al-Najjar; Uday Kumar; Växjö universitet; []
   Keywords : Maintenance approaches; Maintenance Costs; Savings and Profit; Operations; Quality; Effectiveness; Efficiency; Competitiveness; Productivity; Value Advantages; Profitability; Performance; Balanced Scorecard BSC; Maintenance Selection Method; Fuzzy MCDM; TTT-plot; Cost Effective Maintenance; Mechanistic Model; Vibration Level Prediction; Condition-Based Maintenance; survey; case study; TECHNOLOGY; TEKNIKVETENSKAP; Maskinteknik; Mechanical Engineering;

   Abstract : This thesis describes the role of cost effective maintenance in achieving competitive advantages. It explores by means of a survey which maintenance practices are used, and how maintenance policies are selected in Swedish industries. READ MORE

5. 3. Cost optimization of maintenance scheduling for wind turbines with aging components

   Author : Quanjiang Yu; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Integer linear optimization; Age-based preventive maintenance scheduling; Renewal-reward theorem; Weibull distribution; Combinatorial optimization; Wind turbine maintenance; Virtual replacement; Condition monitoring data; Cox proportional hazards method; Linear programming;

   Abstract : A major part of the wind turbine operation cost is resulted from the maintenance of its components. This thesis deals with the theory, algorithms, and applications concerning minimization of the maintenance cost of wind power turbines, using mathematical modelling to find the optimal schedules of preventive maintenance activities for multi-component systems. READ MORE

6. 4. Integrated Bridge Maintenance : Evaluation of a pilot project and future perspectives

   Author : Hans-Åke Mattsson; Håkan Sundquist; Jan Bröchner; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bridge management; bridge maintenance; real service life; partnering; Building engineering; Byggnadsteknik;

   Abstract : The trend in many countries is to outsource maintenance with competitive tendering. The design of the tender is then a crucial issue. A new type of tendering contract, called "Integrated Bridge Maintenance", was introduced in one experimental area in Sweden. READ MORE

7. 5. On maintenance management of wind and nuclear power plants

   Author : Julia Nilsson; Lina Bertling; Ulf Sandberg; KTH; []
   Keywords : electrical poduction systems; windpower; nuclear power; maintenance management; RCM; RCAM; LCC; mathematical optimization; opportunistic maintenance;

   Abstract : Electrical production in Sweden today is mainly from nuclear and hydro power. However, there is large increase in renewable energy like wind power and the installed new capacity goals are large. Several electrical production sources are important for the sustainability of the energy system. READ MORE