Search for dissertations about: "Condition dependent failure rate"

Showing result 1 - 5 of 11 swedish dissertations containing the words Condition dependent failure rate.

2. 1. Monitoring of wear in elasto- hydrodynamic lubricated contacts : Running-in and failure propagation

   Author : Stephan Schnabel; Lars-Erik Stacke; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

   Abstract : Elasto-hydrodynamic lubricated (EHL) contacts can be found in various machine elements or systems, like rolling element bearings, cam followers or gear transmissions. The service life of these elements and systems are depending to some extent on the performance of EHL contacts. READ MORE

4. 2. Some problems on the selection of a condition based maintenance technique for mechanical systems

   Author : Basim Al-Najjar; Bo Bergman; Linköpings univeristet; []
   Keywords : Terotechnology; Systemekonomi;

   Abstract : In the first paper we focused mainly on establishing a sequential method for the selection of a maintenance technique for mechanical systems. The selection problem is studied for the components having considerable consequences and a non-negligible failure intensity. READ MORE

5. 3. Informing Severe Accident Management Guidelines for a Pressurized Water Reactor with MELCOR Simulations

   Author : Nan Zhao; Sevostian Bechta; Jinho Song; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Severe accident management guidelines SAMG ; SAMG verification validation; numerical simulation; SAMG entry condition; SAMG actions; primary-side bleed feed.; Kärnenergiteknik; Nuclear Engineering;

   Abstract : Severe accident management guidelines (SAMGs) play an important role in the hierarchical structure of the defense-in-depth (DiD) principle of reactor safety. Among different methods to verify and validate the effectiveness of SAMG on mitigating severe accident consequences, the approach of numerical simulations using best-estimate computer codes was extensively applied to evaluate the SAMG and SAM actions. READ MORE

6. 4. Seepage monitoring in embankment dams

   Author : Sam Johansson; KTH; []
   Keywords : ;

   Abstract : Internal erosion, which is one of the major reasons forembankment dam failure, causes an increased seepage flow due toloss of fines. A seepage measuring system is therefore a vitalpart of an embankment dam’s monitoring system. Manyexisting seepage monitoring systems are not however sensitiveenough to detect small changes in the seepage flow. 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