Dynamic logistics disruption risk model for offshore supply vessel operations in Arctic waters
Sidum Adumene , Modestus Okwu , Mohammad Yazdi , Mawuli Afenyo , Rabiul Islam , Charles Ugochukwu Orji , Francis Obeng , Floris Goerlandt
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引用次数: 15
北极海域海上供应船作业的动态物流中断风险模型
在恶劣的环境中,由于恶劣的环境因素及其相关风险,海上石油和天然气支持业务经常受到物流和供应链运营中断的影响。为了捕捉这些随机影响因素并支持相关决策,开发一个稳健的动态概率模型是有帮助的。目前的研究提出了一种积极主动的方法,将纯出生马尔可夫过程(PBMP)与贝叶斯网络(BN)相结合,用于有效分析海上物流中断风险。PBMP捕捉工程系统故障特征的随机性,用于估计时间演化退化概率。BN探讨了最重要的海上物流影响因素之间的动态相互作用,以分析恶劣环境中的中断风险。影响因素的非线性依赖性的影响被传播和更新,给出了破坏程度的证据。使用基于成本聚合的期望理论进一步评估物流中断的程度。该理论探讨了不同运营情景下的发生成本/经济风险。所提出的方法在海上供应船运营中进行了测试,以在恶劣的运营环境中估计可能的运营中断风险,即财务损失。评估最关键的影响职能,以确定其对物流中断的影响程度。在中断发生的上限概率下,预测经济风险/额外发生成本为2.38E+05美元,方差(σ2)为3.05×109。研究结果表明,该方法适用于恶劣海上环境下的动态物流中断风险分析。
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