Browsing NTNU Open by Author "Kim, Hyungju"
Now showing items 1-9 of 9
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A Comparison of Hazards and Efficiencies of Conventional and Adaptive Control Algorithms Using Systems-Theoretic Process Analysis
Ohrem, Sveinung Johan; Kim, Hyungju; Lundteigen, Mary Ann; Holden, Christian (Journal article; Peer reviewed, 2019)Control systems are an important and increasingly complex part of most industrial and non-industrial systems. As such, identifying and handling associated risks is increasingly important. Systems- Theoretic Process Analysis ... -
Applying CAST to investigation of the FPSO’s incident with an iceberg
Kim, Ekaterina; Utne, Ingrid Bouwer; Kim, Hyungju (Journal article; Peer reviewed, 2019)On 29 March 2017, the floating production storage and offloading unit (FPSO) did not disconnect and sail away when a medium iceberg came close to the FPSO. The tow of the iceberg was unsuccessful, and the crew was instructed ... -
Clarifying Implementation of Safe Design Principles in IEC 61508: Challenges of Novel Subsea Technology Development
Zikrullah, Nanda Anugrah; Kim, Hyungju; Lundteigen, Mary Ann; van der Meulen, Meine J. P. (Chapter, 2019)When new technologies are introduced to safety systems, they may raise some new discussions and clarifications about established practices. IEC 61508 represents a general framework which may apply to all electrical/ ... -
Combining system-theoretic process analysis and availability assessment: A subsea case study
Zhang, Juntao; Kim, Hyungju; Liu, Yiliu; Lundteigen, Mary Ann (Journal article; Peer reviewed, 2019)Hazard identification methods are important tools to verify that the system is able to operate according to specifications under different operating conditions. Unfortunately, many of the traditional methods are not adequate ... -
A comparison of hazard analysis methods capability for safety requirements generation
Zikrullah, Nanda Anugrah; Kim, Hyungju; van der Meulen, Meine J. P; Skofteland, Gunleiv; Lundteigen, Mary Ann (Peer reviewed; Journal article, 2021)A safety-critical system comprising several interacting and software-intensive systems must be carefully analyzed to detect whether new functional requirements are needed to ensure safety. This involves an analysis of the ... -
Comparison of Hazardous Scenarios for Different Ship Autonomy Types using Systems-Theoretic Process Analysis
Kim, Hyungju; Haugen, Odd Ivar; Rokseth, Børge; Lundteigen, Mary Ann (Chapter, 2019)The area of autonomous and remotely operated ships is developing fast but is still an immature field where new ideas and novel technology solutions are being introduced. As part of these efforts, the Norwegian Forum for ... -
Maritime safety: An analysis of accident causation and measures for reducing risk at sea
Kim, Hyungju (Doctoral theses at NTNU;2016:87, Doctoral thesis, 2016)The main objective of this PhD thesis is to analyse risk reducing measures for improved safety at sea, which is detailed in five subobjectives: 1. Research objectives related to SRtP regulation 1.1 Develop analytical ... -
Prioritization Approach for Systems-Theoretic Process Analysis (PA-STPA) : Applied for Subsea Systems
Zikrullah, Nanda Anugrah (Master thesis, 2018)A Considerable amount of scenarios and constraints were produced by the basic systems-theoretic process analysis (STPA) application. It increased the difficulty to allocate resources for problem-solving. While these problems ... -
Utilization of risk priority number to systems-theoretic process analysis: A practical solution to manage a large number of unsafe control actions and loss scenarios
Kim, Hyungju; Lundteigen, Mary Ann; Hafver, Andreas; Frank Børre, Pedersen (Peer reviewed; Journal article, 2020)System-theoretic process analysis is a hazard identification method whose main assumption is that accidents can be caused by unsafe interactions of system components, as well as component failures. System-theoretic process ...