Browsing NTNU Open by Author "Barros, Anne"
Now showing items 41-49 of 49
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Safety of machinery - Integrity assessment of safety-related control systems
Louwe Kooijmans, Peter Joos (Master thesis, 2015)This project had two phases. The first phase was of an exploring nature and had as main objectives to (1) give an introduction to the machinery directive, its structure, and main safety requirements with special focus on ... -
Stochastic Modelling for Condition Based Maintenance
Han, Zehan (Master thesis, 2015)This Master's thesis covers almost all aspects of Condition Based Maintenance (CBM). All objectives in Chapter 1 are met. The thesis is mainly comprised of three parts. First part introduces the world of CBM to readers. ... -
Study of testing and maintenance strategies for redundant final element in SIS with imperfect detection of degraded state
Zhang, Aibo; Srivastav, Himanshu; Barros, Anne; Liu, Yiliu (Journal article; Peer reviewed, 2021)Safety-instrumented systems (SISs) have been widely installed to lower risks of equipment/ process by performing the designed safety functions in cases of demands. Final elements remain dormant mostly in a low demand mode ... -
Testing of Safety Systems: Bad Effects and Their Modelling with Comparative Studies
de Azevedo Vale, Guilherme (Master thesis, 2018)Safety systems are used in the process industry for many years. The application of these system is based on IEC 61508 standard. In this standard, proof testing is recommended in order to achieve the required SIL. It is ... -
The Impact of Maintenance Duration on the Downtime of an Offshore Wind Farm - Alternating Renewal Process
Seyr, Helene; Barros, Anne; Muskulus, Michael (Chapter, 2017)Maintenance cost in offshore wind farms are one of the main reasons why it is still not competitive with its onshore counter part. To lower the price of energy, the authors want to improve the modeling of offshore wind ... -
Warranty analysis of a two-component system with failure interaction
Zhang, Nan; Fouladirad, Mitra; Barros, Anne (Chapter, 2017)In recent decades, more and more attention has been paid to the warranty study of multicomponent systems. Compared to the reliability and cost analysis of single item systems, failure dependence between items is a major ... -
Warranty analysis of a two-component system with type I stochastic dependence
Zhang, Nan; Fouladirad, Mitra; Barros, Anne (Journal article; Peer reviewed, 2017)This article develops the warranty cost analysis of a two-component in-series system with stochastic dependence. From the perspectives of both the manufacturer and the consumer, the short-run total profits and costs under ... -
Well Integrity Assessment: Challenges related to Human and Organizational Factors - The case study of Veslefrikk
Hals, Alexander (Master thesis, 2015)Well integrity affects safety, humans, the environment, production, reputations and assets value. The concept of well integrity in relation to human and organizational factors have gained considerable attention in the ... -
Wiener and Gamma Processes Overview for Degradation Modelling and Prognostic
Zhang, Yun (Master thesis, 2015)High reliability is an indispensable requirement for the operation of technical systems and infrastructure (like roads, railways, buildings, bridges and industrial plants). Failures in these areas can result in high costs ...