• Model-based maintenance optimization 

      Gopakumar Nair, Krishnan (Master thesis, 2021)
      The thesis aims to apply a model-based assessment for the different maintenance policies possible for a system and thereby aid the engineers in choosing the optimal maintenance policy. For this purpose, a system of separators ...
    • Model-based Sustainability Assessment - An Enabler for Transition to Sustainable Manufacturing 

      Moldavska, Anastasiia (Journal article; Peer reviewed, 2016)
      The “sustainable manufacturing” concept has been discussed by researchers and manufacturers for decades. Still, a transition to sustainable manufacturing is limited due to constraints such as the lack of a practical ...
    • Modelica Component Models for Non-diffracting Floating Objects and Quasi-static Catenary Moorings 

      Viswanathan, Savin; Holden, Christian (Chapter, 2020)
      In this paper, the theory behind determining the hydrodynamic response of a floating object in the presence of waves is discussed, followed by a simplification for the case of wave-transparent objects. The Morison equation ...
    • Modelica Component Models for Oceanic Surface Waves and Depth Varying Current 

      Viswanathan, Savin; Holden, Christian (Chapter, 2020)
      In this paper, the theory of progressive ocean-surface gravity-waves is discussed, followed by the concept of the representation of the irregular sea-state by a sea spectrum. Fourier series decomposition of the irregular ...
    • Modeling and Control of a Bifilar Crane Payload 

      Cibicik, Andrej; Myhre, Torstein Anderssen; Egeland, Olav (Journal article; Peer reviewed, 2018)
      This paper presents a modeling technique and a controller for an underactuated crane payload. The crane payload is modeled as a bifilar pendulum. The payload is attached to a sheave block, such that a cable can freely run ...
    • Modeling and Control of Shipmounted Cranes 

      Tysse, Geir Ole (Doctoral theses at NTNU;2020:225, Doctoral thesis, 2020)
      This thesis presents methods and theory for the mathematical modeling of crane-ship systems and controllers for ship-mounted cranes and crane loads. The thesis contains a collection of four journal papers and one conference ...
    • Modeling and nonlinear model predictive control of a subsea pump station 

      Ohrem, Sveinung Johan; Holden, Christian (Journal article; Peer reviewed, 2017)
      In this paper we present a model of a pump station consisting of two pumps in parallel with a recycle line, and a nonlinear Model Predictive Control strategy for said pump station with suction pressure as the controlled ...
    • Modeling and Simulation of Borregaard's Steam System - Construction, Validation and Utilization of the Model 

      Aasbø, Joakim Knut Snorre (Master thesis, 2016)
      The steam-system at Borregaard Sarpsborg big process plant consists of several kilometers of pipelines and different pressure-systems. The steam-system is the most important secondary aid system to Borregaard's main ...
    • Modeling and Simulation of the Human Body 

      Gjelsvik, Carl Otto (Master thesis, 2016)
      The theme of this Master Thesis is modeling and simulation of the musculoskeletal system. The purpose is to explore new ways to diagnose the human body, and do so effectively by automation. This Master Thesis investigates ...
    • Modeling and Testing of Impact Damage in Composite Pressure Vessels 

      Skaar, Martin Welle (Master thesis, 2015)
      Composite pressure vessels are becoming widely used for transporting gas, lately also hydrogen. In order to enable extensive use of the pressure vessels, it is critical to ensure their societal acceptance, and thus safety ...
    • Modeling and testing of small diameter composite tubes under hydrostatic pressure 

      Dzubur, Emir (Master thesis, 2014)
      This thesis investigates the behavior of small diameter composite tubes that are exposed to external pressure. Composite tubes have a superior strength to weight ratio compared to steel tubes. The oil industry is facing ...
    • Modeling Biological Nutrient Removal in a Greywater Treatment System 

      Urdalen, Ivar Soares (Master thesis, 2015)
      Many urban centers suffer water scarcity due to increased population growth and dry periods. There has been an increased interest in developing alternative water sources for supplementing the existing urban water supply ...
    • Modeling Blowouts During Drilling Using STAMP and STPA 

      Budde, Silje Frost (Master thesis, 2012)
      The focus of this master thesis has been on modeling the risk of blowouts during drilling using System-Theoretic Accident Model and Processes (STAMP) and System-Theoretic Process Analysis (STPA). The world and technology ...
    • Modeling contaminant flows from the U.S. iron and steelsector 

      Nybakke, Even (Master thesis, 2009)
    • Modeling Cyberattack Propagation and Impacts on Cyber-Physical System Safety: An Experiment 

      Serru, Théo; Nguyen, Nga; Batteux, Michel; Rauzy, Antoine Bertrand (Peer reviewed; Journal article, 2022)
      In this article, we present an experiment we conducted with discrete event simulations to analyze the effects of multi-step cyberattacks on the safety of cyber-physical systems. We show how to represent systems, their ...
    • Modeling Degradation for Prognosis in a Complex Environment - From a Physics-Based Perspective 

      Bjørnebekk, Håvard Holm (Master thesis, 2021)
      Med den pågående trenden av automatisering og datautveksling i produksjonsteknologier, kjent som Industry 4.0, har vedlikehold utviklet seg til å bli en viktig funksjon i industrien. Modellering av degradering og prognose ...
    • Modeling for evaluation of safety instrumented systems with heterogeneous components 

      Cai, Baoping; Li, Wenchao; Liu, Yiliu; Shao, Xiaoyan; Zhang, Yanping; Zhao, Yi; Liu, Zengkai; Ji, Renjie; Liu, Yonghong (Peer reviewed; Journal article, 2021)
      A novel methodology for evaluation of safety instrumented systems (SISs) with heterogeneous components based on multi-stage dynamic Bayesian networks (MDBNs) is proposed. The unified evaluation model for M-out-of-N ...
    • Modeling Human and Organizational Factors for Operational Risk Analysis 

      Li, Liaosha (Master thesis, 2016)
      In terms of accident sequences in the offshore oil and gas industry, technical factors have been focused on the risk analysis area widely. However, there are still accidents and losses occurred frequently. To understand ...
    • Modeling of Fatigue from Random Corrosion Pits 

      Sirevaag, Fredrik Øgård (Master thesis, 2015)
      This master thesis is a continuation of the project work Fatigue Assessment of Mechanical Components with Random Surface Defects written during the fall of 2015. Central tasks of this report has been to create a manual ...
    • Modeling of overland flow at Overvikfeltet, Trondheim 

      Svanevik, Mikkel Stensås (Master thesis, 2016)
      This thesis looks at what factors influence the hydrology of a catchment, and modeling how low impact development can be used to mitigate the effects of urbanization in a catchment through the use of PCSWMM. The catchment ...