...
首页> 外文期刊>Accident Analysis & Prevention >Fuzzy-logic-based network for complex systems risk assessment: Application to ship performance analysis
【24h】

Fuzzy-logic-based network for complex systems risk assessment: Application to ship performance analysis

机译:基于模糊逻辑的复杂系统风险评估网络:在船舶性能分析中的应用

获取原文
获取原文并翻译 | 示例
           

摘要

In this paper, a new interpretation of intuitionistic fuzzy sets in the advanced framework of the Dempster-Shafer theory of evidence is extended to monitor safety-critical systems' performance. Not only is the proposed approach more effective, but it also takes into account the fuzzy rules that deal with imperfect knowledge/information and, therefore, is different from the classical Takagi-Sugeno fuzzy system, which assumes that the rule (the knowledge) is perfect. We provide an analytical solution to the practical and important problem of the conceptual probabilistic approach for formal ship safety assessment using the fuzzy set theory that involves uncertainties associated with the reliability input data. Thus, the overall safety of the ship engine is investigated as an object of risk analysis using the fuzzy mapping structure, which considers uncertainty and partial truth in the input-output mapping. The proposed method integrates direct evidence of the frame of discernment and is demonstrated through references to examples where fuzzy set models are informative. These simple applications illustrate how to assess the conflict of sensor information fusion for a sufficient cooling power system of vessels under extreme operation conditions. It was found that propulsion engine safety systems are not only a function of many environmental and operation profiles but are also dynamic and complex.
机译:在本文中,在Dempster-Shafer证据理论的高级框架中对直觉模糊集的新解释被扩展为监视安全关键系统的性能。所提出的方法不仅更有效,而且考虑了处理不完善知识/信息的模糊规则,因此不同于经典的Takagi-Sugeno模糊系统,后者假定规则(知识)为完善。我们使用模糊集理论对涉及正式可靠性的概念概率方法的实际和重要问题提供分析解决方案,该方法涉及与可靠性输入数据相关的不确定性。因此,使用模糊映射结构将船舶发动机的整体安全性作为风险分析的对象进行研究,该结构考虑了输入输出映射中的不确定性和部分真实性。所提出的方法集成了辨别框架的直接证据,并通过引用模糊集模型可提供信息的示例进行了证明。这些简单的应用程序说明了如何在极端操作条件下评估传感器信息融合对船舶足够冷却功率系统的冲突。已经发现,推进发动机安全系统不仅是许多环境和运行状况的函数,而且是动态且复杂的。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号