燃料棒夹爪抗冲击性能仿真与设计优化  

The Fuel Rods Grip Shock Resistance Simulation and Design Optimization

作　　者：韩克平[1] 余冰 朱晓辉[1] 王建庄[1] 李文龙[1] 

机构地区：[1]华中科技大学数字制造装备与技术国家重点实验室,湖北武汉430074 [2]中科华核电技术研究院,广东深圳518026

出　　处：《装备制造技术》2015年第8期1-3,7,共4页Equipment Manufacturing Technology

基　　金：<化工装备强化与本质安全>湖北省重点实验室开放课题(2015KA04);中央高校基本科研业务费资助(HUST:2015QN051;2015TS063)

摘　　要：在反应堆燃料组件检修过程中,燃料棒夹爪是直接接触高放射性燃料棒的关键部件,针对燃料棒夹爪抗冲击性优化,提出了一种基于主结构的有限元优化分析方法,通过控制变量法分析夹爪在不同的爪瓣长度、爪瓣间隙和爪瓣瓣数下夹爪的冲击应力,比较不同特征结构对夹爪抗冲击性的影响,最终得到优化后的燃料棒夹爪结构的爪瓣长度为33mm,爪瓣瓣数为10瓣。本研究方法具有一定的先进性,为实际工程实验提供了有力的指导性意义。In the process of reactor fuel assembly maintenance, the fuel rods grip are key components in direct contact with high radioactive fuel rods, in view of the fuel rods grip impact resistance optimization, this paper proposes a method based on finite element optimization analysis of main structure, grip through the analysis of the control variable method in different length of claw disc Spaces and claw, claw disc leaf number paw under impact stress, compare the different characteristics of the structure of grip the influence of impact resistance, finally got the optimized fuel rods grip of the structure of the claw discs length to 33mm, claw leaf number of 10 disc. This research method has certain advancement, for practical engineering experiment provides strong guiding significance.

关 键 词：燃料棒夹爪 抗冲击性优化 有限元模型 

分 类 号：TL352[核科学技术—核技术及应用]