A comprehensive risk assessment of enclosed space operations on ships
本研究整合故障模式与效应分析、证据推理和贝叶斯网络,对船舶封闭空间作业的23种故障模式进行定量和因果分析,发现程序和人为失误是最关键的风险因素,并提出了短期和长期应对策略。
This study presents a comprehensive risk assessment to identify, quantify, and prioritise enclosed space operations' most critical failure modes. Enclosed space operations on board ships have severe consequences due to the human-related, procedural, equipment-related, operational, emergency response, environmental, and structural hazards involved. It integrates failure modes, effects, and criticality analysis, evidential reasoning, and rule-based Bayesian network techniques to manage uncertainty and model causal relationships. A total of twenty-three failure modes under five main risk components related to enclosed space operations are assessed in detail and the results were analysed both quantitatively and causally. The findings of the analysis revealed that the most critical risk components are procedural and human failures. Furthermore, limited procedural traceability and auditability emerged as the most critical failure mode. In line with the results, the study identifies the risks and the systematic problems behind these risks and provides solution-oriented short- and long-term strategies.