质量功能展开方法在压水堆燃料棒设计制造中的应用研究
Applied Research on Quality Function Deployment in PWR Fuel Rod Design and Manufacturing

核燃料组件设计、加工最主要目标之一就是要确保其在核电站内的可靠性，从而实现业主/用户需求。为了从质量管理角度有效地提升燃料可靠性，本文采用质量功能展开方法(QFD)，以压水堆中服役的燃料棒为分析对象，对其设计、制造过程中的关键参数进行了分析评估。通过燃料棒特征参数的敏感性分析，对比不同参数下的燃料棒性能与安全分析准则的差异，采用层次分析法(AHP)实现相关准则的重要性评估。通过对安全分析准则的重要性评估，可以得到安全分析准则与燃料棒特征参数的关系矩阵。基于上述结果，QFD分析方法的核心——质量屋构建完成后，就可以很容易识别出燃料棒失效的主要风险，通过上述分析研究，得出了可以保证燃料棒完整性和提升燃料棒质量的相关建议。
One of the main objectives in the design and manufacturing process of fuel assemblies is to fulfill the customer expectations with a product that assures its reliability during its stay in the nuclear power plant. In order to improve fuel reliability in quality management way, the fuel rod served in PWR plant is used as research object by means of Quality Function Deployment method (QFD). The ASI step-by-step analysis and correlative matrix method are adopted in the analyzing process. Fuel rod safety criteria such as: internal pressure, fuel temperature calculation has been taken out to analyze the sensitivity of fuel rod parameters. The AHP method is used to evaluate importance of the safety requirements. Correlative matrix can be made by the importance assessment of each fuel rod technical characteristics to each safety requirements. Once the “House of Quality” is made, major risk of fuel rod failure can be recognized and relative key parameters of fuel rod can be filtered. Through detailed analysis and research, necessary suggestions are provided to keep integrity and promote quality of fuel rod.