核电厂人员闸门数字样机应用技术研究

Research on Digital Prototype Technologies of Personnel Airlock for Nuclear Power Plants

为提高核电厂人员闸门的安全、可靠性,基于数字样机技术,构建人员闸门整机和关键零部件的参数化模型,结合故障模式及影响分析(FMEA)方法,对人员闸门参数化模型进行可靠性分析,找到薄弱环节。并借助动力学仿真分析软件(ADAMS)和有限元分析软件(ANSYS),对人员闸门顶升机构和筒体与密封门组成的承压部件薄弱环节进行了动力学仿真分析和应力计算与评定。结果表明,人员闸门自身存在的薄弱环节不会导致其产生功能或结构完整性失效事故,验证了人员闸门数字样机结构设计的合理性、装配关系的正确性。

In order to improve the safety and reliability of the personnel airlock of nuclear power plants, this paper develops a digital prototype of personnel airlock and its key components. In addition, combined with structural reliability analysis with digital prototype simulation, the weak links that influence the reliability of the equipment are specifically analyzed. By the failure mode and effect analysis (FMEA) method, the weak links of the equipment are found. Weak link-lifting mechanism is analyzed by using dynamics simulation software ADAMS. And the finite element analysis carried out by ANSYS output the stress distribution and the deformation of these components in accident condition. The results show that the rationality of the structural design of personnel airlock and the correctness of the assembly relationship are verified.