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根据对现有的压力容器、石油管道腐蚀失效案例和现有失效知识的分析与总结,提出了晶间腐蚀和氢致开裂两种模式的腐蚀失效特征。依据这些失效特征建立相应的两种腐蚀失效模式的失效判断规则,根据这些失效规则运用COM Wizard、数据库技术和可靠性技术建立有效的腐蚀失效模式诊断专家系统。该专家系统根据输入的腐蚀失效特征来识别案例的腐蚀失效模式并给出综合可信度作为诊断结果的评价参数。
Based on the analysis and summary of existing pressure vessels, failure cases of oil pipeline corrosion and existing failure knowledge, the corrosion failure characteristics of intergranular corrosion and hydrogen induced cracking are proposed. According to these failure characteristics, the corresponding failure judgment rules of two corrosion failure modes are established. Based on these failure rules, COM Wizard, database technology and reliability technology are used to establish an effective corrosion failure diagnosis expert system. The expert system identifies the corrosion failure mode of the case based on the input corrosion failure characteristics and gives the comprehensive credibility as the evaluation parameter of the diagnosis result.