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Viser treff 3243-3262 av 4013
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Rubber friction: The contribution from the area of real contact
(Journal article; Peer reviewed, 2018)There are two contributions to the friction force when a rubber block is sliding on a hard and rough substrate surface, namely, a contribution Fad = τf A from the area of real contact A and a viscoelastic contribution Fvisc ... -
Runoff Modelling For Bhutan Using Satellite Data
(Master thesis, 2016)Due to the limitations posed by the difficult terrain and lack of resources to install and manage the hydro-meteorological stations, Bhutan faces challenges related to sparse data network while planning water resource ... -
Rupture analysis of rubber in the presence of a sharp V-shape notch under pure mode-I loading
(Journal article, 2018)The rupture behavior of styrene-butadiene rubbers (SBR) in the presence of a V-shape notch is investigated for the first time both experimentally and theoretically. In the experiments, V-notched samples of SBR are tested ... -
Rupture Predictions of Notched Ti-6Al-4V Using Local Approaches
(Journal article; Peer reviewed, 2018)Ti-6Al-4V has been extensively used in structural applications in various engineering fields, from naval to automotive and from aerospace to biomedical. Structural applications are characterized by geometrical discontinuities ... -
Rusevern til generator for Remote Hydrolights Pamir-turbin
(Master thesis, 2014)Masteroppgaven omhandler produktutviklingsprosessen og konseptet av et rusevern til to konkrete tverrstrømsturbiner i en avsidesliggende landsby i Afghanistan, kalt Daste Rawat. Uønskede hendelser kan oppstå i turbinanlegget, ... -
RWS modellering og optimalisering
(Master thesis, 2011)Ved Kongsberg Protech Systems, en avdeling ved KDA, har det blitt laget en virtuell simuleringsmodell av RWS PROTECTOR M151 (remote weapon system) i simuleringsprogrammet FEDEM. Dette for å kunne studere hvordan ... -
Rørmontasje ved jacketsbygging
(Master thesis, 2013)Rapporten beskriver utviklingen av et nytt konsept for stub-montering. Resultatet er en maskin som monterer stub?er inn på siden av leggen, og gjør det i tillegg til at dagens manuelle montering ovenfra fortsetter som ... -
SafeT-Next Generation Safety Assessment Framework for Railway: Development of a Framework for the Practical Implementation and Facilitation of STPA
(Master thesis, 2018)In this thesis, a systems-theoretic process analysis workshop has been planned and conducted in order to see if the method is advantageous to use at complex systems, and if the analysis reveals more hazardous scenarios ... -
Safety And Costs Optimization In Hydrogen Delivery
(Master thesis, 2020)In recent decades, attention has been paid to the improvement of hydrogen technologies as replacement of electric and/or hybrid cars. This can be defined as a green solution as the main product of hydrogen combustion is ... -
Safety and Reliability Assessment of All-Electric Subsea
(Master thesis, 2020)Undervannsproduksjon refererer til brønner som ligger på havbunnen, og tilhørende utstyr og moduler for å produsere hydrokarboner. Det vanligste systemet for kontroll av undervannsproduksjon er et elektrohydraulisk system. ... -
Safety barrier management: Risk‐based approach for the oil and gas sector
(Peer reviewed; Journal article, 2021)In the Oil and Gas sector, risk assessment and management have always been critical due to the possibility of significant accidents associated with the presence of large amounts of flammable hydrocarbons. Methods to provide ... -
Safety barriers against common cause failure and cascading failure: literature reviews and modeling strategies
(Chapter, 2018)Safety barriers are required in many technical systems to reduce initiating negations, suppress failure propagations, or mitigate the consequences of common cause failures and cascading failures. Based on a thorough ... -
Safety Barriers in Complex Systems with Dependent Failures: Modeling and Assessment Approaches
(Doctoral theses at NTNU;2022:40, Doctoral thesis, 2022)Technical systems are becoming more and more complex with a degree of dependencies. Such dependency issues can significantly reduce system reliability and cause catastrophes without proper prevention. Therefore, a variety ... -
Safety Barriers on Oil and Gas Platforms. Means to Prevent Hydrocarbon Releases
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:3, Doctoral thesis, 2006)The main objective of the PhD project has been to develop concepts and methods that can be used to define, illustrate, analyse, and improve safety barriers in the operational phase of offshore oil and gas production ... -
Safety Barriers: Research advances and new thoughts on theory, engineering and management
(Peer reviewed; Journal article, 2020)Safety barriers include physical and non-physical means in different industries for preventing the occurrences of hazardous events and mitigating the consequences in case they have occurred. After clarifying the relevant ... -
Safety climate as an indicator for major accident risk: Can we use safety climate as an indicator on the plant level?
(Journal article, 2016)Measuring safety climate is regarded a proactive approach to safety management. With increased focus on developing indicators for major accidents, there is a need to critically assess the effectiveness of current practices ... -
Safety Functions in Different Operational Modes and IEC 61508 in the Hydropower Industry
(Master thesis, 2013)Technical systems that comprise at least one electrical, electronic, or programmable electronic device and perform safety functions are called safety instrumented systems. Safety instrumented systems are used to reduce the ... -
‘Safety Hunting’: a Serious Gaming Approach for Industrial Safety Training
(Peer reviewed; Journal article, 2023)Current operational safety training methods for the chemical process industry typically focus on acquiring and evaluating knowledge and technical know-how about safety measures and procedures. Although these are valuable ... -
Safety instrumented systems inthe oil and gas industry:: Concepts and methods for safety and reliability assessments indesign and operation
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:9, Doctoral thesis, 2009) -
Safety Instrumented Systems on Older Facilities - An Approach for Addressing SIL-Requirements in Relation to Minor and Major Modifications
(Master thesis, 2015)This thesis presents a new approach for SIL management during modifications on existing SIS. This approach is in formof a working procedure that can be followed during SIS modifications. The procedure provides a comprehensive ...