通过综合性中止和备用支持优化控制任务危险.
Li Yang1, Fanping Wei1, Xiaobing Ma1
1School of Reliability and Systems Engineering, Beihang University, Beijing, China.
概括
本研究介绍了管理有限备件的安全关键系统的最佳策略. 它通过适应性组件更换和任务终止政策平衡任务完成与降低风险.
科学领域:
- 可靠性工程可靠性工程
- 运营研究 运营研究
- 系统安全系统安全系统安全系统
背景情况:
- 安全关键系统面临着影响任务成功的退化风险.
- 这些系统的部件故障可能导致灾难性的安全损失.
- 有限的备件和任务中断使风险管理复杂化.
研究的目的:
- 为组件更换和任务终止制定适应性策略.
- 为了优化任务完成和系统生存能力之间的平衡.
- 为了应对安全关键系统的风险管理挑战与资源限制.
主要方法:
- 使用连续时间离散状态马尔科夫链建模组件降解.
- 制定共同决策问题作为有限时间的马尔科夫决策过程.
- 分析结构性质,制定替换和任务终止的控制限制政策.
主要成果:
- 制定了结构化的控制限制政策,用于适应性备用更换和任务终止.
- 在提高运营效率和降低风险方面验证了卓越的模型性能.
- 通过对雷达系统驱动器进行数值实验来证明有效性.
结论:
- 拟议的适应性政策有效地管理安全关键系统中的风险.
- 优化决策提高了系统的生存能力和任务成功率.
- 该方法为资源有限的操作环境提供了一个强大的框架.
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