基于ANSYS的燃料组件事故动力分析程序  

Dynamic Analysis of Fuel Assembly for Accident Condition Based on ANSYS

作　　者：齐欢欢[1] 吴万军[1] 沈平川[1] 姜乃斌[1] 叶献辉[1] 黄旋[1] 黄茜[1] Qi Huanhuan;Wu Wanjun;Shen Pingchuan;Jiang Naibin;Ye Xianhui;Huang Xuan;Huang Qian(Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213

出　　处：《核动力工程》2018年第3期40-44,共5页Nuclear Power Engineering

摘　　要：对燃料组件事故动力分析的流程、燃料组件轴向模型以及横向排模型建立方法、轴向和横向事故动力响应计算方法、格架作用力和导向管应力计算方法进行了研究。基于有限元软件ANSYS的APDL和UIDL语言,引入参数化和模块化的思想,编制燃料组件事故动力分析程序,并采用编制的程序与专用软件分别对某型燃料组件进行对比验证。对比结果表明差异较小,均在工程允许误差范围之内;采用编制的程序代替专用软件进行燃料组件事故动力分析,编制的程序分析能力增强,效率更高。选取某电厂作为分析对象,采用编制的程序进行了实例计算,分析结果满足规范要求。The process of fuel assembly dynamic analysis for accident condition was studied. Method of axial and lateral dynamic modeling was developed. The axial and lateral dynamic response calculation method was established, and then the grid impact force and guide thimble stress calculation were carried out. Based on ANSYS APDL and UIDL language, introducing the idea of parameterization and modularization, the fuel assembly dynamic analysis program（program-developed） for accident condition was developed. Compared validation was carried out using program-developed and software-specific respectively for a certain type of fuel assembly. Comparison results show that the difference was small, and in the range of engineering permissible error. The program developed can be used to analyze the fuel assembly accident instead of software-specific. Analysis ability of the program developed was stronger and calculation efficiency was higher than that of the specific software. Selecting a nuclear power plant as the analysis object, the program developed is used to do the dynamic calculation of fuel assembly for accident condition, and the analysis results meet the requirements of the code.

关 键 词：燃料组件 事故工况 动力分析 ANSYS 

分 类 号：TL352[核科学技术—核技术及应用]