概括
组织上的错误会对工程系统安全产生重大影响. 将组织因素整合到概率风险分析中可以比单独的技术解决方案更具成本效益地提高系统可靠性.
科学领域:
- 工程风险分析 工程风险分析
- 组织安全管理组织安全管理
- 系统可靠性工程 系统可靠性工程
背景情况:
- 关键工程系统故障通常是由组织错误引起的.
- 由于传统的分析方法,工程师经常优先考虑技术风险管理而不是组织方面的风险管理.
- 概率风险分析 (PRA) 是基于组件和操作员性能评估系统安全的一个关键方法.
研究的目的:
- 将组织因素纳入概率风险分析.
- 建立组件故障概率和组织特征之间的联系.
- 估计系统安全方面的组织改进所带来的好处.
主要方法:
- 概率风险分析 (PRA) 被调整为包括组织方面的风险分析.
- 用概率分析了组织错误及其对系统安全的影响.
- 对组织改进与技术改进进行了成本效益分析.
主要成果:
- 组织因素可以量化,并与组件故障概率联系起来.
- 概率学方法可以有效地分析组织错误及其安全影响.
- 改善离岸平台的设计审查,以比结构增强要低得多的成本提供了显著的可靠性收益.
结论:
- 组织改进可以比纯粹的技术解决方案更具成本效益的战略来提高系统安全性.
- 将组织分析集成到PRA中,为系统可靠性提供了宝贵的见解.
- 具体的组织干预,如增强的设计审查,为关键基础设施带来了巨大的好处.
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