核安全级仪控软件可靠性评估模型构建

发布时间：2018-06-08 15:59

本文选题：核电厂 + 安全级　；参考：《哈尔滨工程大学学报》2014年12期

【摘要】：为了对核安全级仪控系统软件可靠性进行定量评估,研究依照贝叶斯网络建模步骤进行模型建设的方法。对国际上几种主要核安全级仪控系统标准体系进行对比分析,构建核安全级系统软件可靠性评估综合模型和子模型,使用贝叶斯公式对模型可靠性进行量化计算和评估,提出通过衡量模型各节点的敏感度验证模型建立的合理性。实现运用贝叶斯网络方法,通过对系统因素关系分析,结合专家定性判断,对复杂系统进行模型构建,同时提供对系统内不确定因素进行定性与定量相结合的预测和验证的方法。
[Abstract]:In order to quantitatively evaluate the software reliability of the nuclear safety level meter and control system, the modeling method based on Bayesian network is studied. This paper makes a comparative analysis of several international standard systems of nuclear safety meter and control system, constructs a comprehensive model and sub-model for software reliability evaluation of nuclear safety grade system, and calculates and evaluates the reliability of the model quantitatively by using Bayesian formula. The rationality of the model is verified by measuring the sensitivity of each node in the model. By using Bayesian network method, by analyzing the relationship between system factors and experts' qualitative judgment, the model of complex system is constructed. At the same time, the method of qualitative and quantitative prediction and verification of uncertainty in the system is provided.
【作者单位】：哈尔滨工程大学经济管理学院;哈尔滨工程大学核科学与技术学院;
【基金】：欧盟资助项目(J154213001)
【分类号】：TM623.8

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