移动式反应堆在不同公路等级下运输振动响应特性分析  

Analysis of Vibration Responses Characteristics of Mobile Micro-reactor under Different Road Classes

作　　者：凡天娣 张勇 杨国威 宋勇[1] 蒋洁琼[1] 周涛[1] Fan Tiandi;Zhang Yong;Yang Guowei;Song Yong;Jiang Jieqiong;Zhou Tao(Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China;International Academy of Neutron Science,Qingdao 266041,China)

机构地区：[1]中国科学院合肥物质科学研究院,合肥230031 [2]中国科学技术大学,合肥230026 [3]中子科学国际研究院,青岛266041

出　　处：《核安全》2023年第4期60-68,共9页Nuclear Safety

基　　金：国家重点研发计划:离岸固定式多用途一体化全自然循环小型铅冷堆方案与关键技术研究,项目编号:2020YFB1902102;项目名称:小型氦氙冷却移动式固定核反应堆电源,项目编号:2020YFB1901901。

摘　　要：小型可移动式车载反应堆可用于岛屿、偏远地区以及一些特殊场合的供电,是先进核能领域研究的热点。移动式反应堆采用铅铋合金作冷却剂,具有质量大、体积小等特点,导致反应堆在车载上的质量分布极为不均匀,因此与普通大型设备运输的工况略有不同。本文通过在车体-设备连接处添加三个减振器以描述反应堆6个方向的自由度,利用拉格朗日多体动力学方程对整车系统进行分离式建模。本文讨论了不同铅铋充排量及不同等级公路下系统的振动响应,用数值仿真软件Matlab和数值积分法Runge-Kutta进行仿真求解。结果表明,在不同等级道路运输时,振动主频多集中在16 Hz以内,振幅在F级道路下增幅可达150%;研究结果可为移动式反应堆在不同道路等级下的工程运输提供参考。The mobile micro-reactors have become an advanced nuclear energy,capable of efficiently supplying power to islands,remote regions,and specialized events.these mobile micro-reactors utilize liquid metal lead-bismuth eutectic(LBE)as a coolant,which possesses unique characteristics such as high density,large mass,and small volume.Consequently,the transportation of these mobile micro-reactors differs significantly from that of conventional large-scale equipment.This paper proposes the implementation of three shock absorbers at the connection of equipment and vehicle in order to evaluate the reactor with six degreesof-freedom(DOF).A separated model for the full-car system is established through the application of the Lagrange multi-body dynamic equation.The transportation vibration responses are simulated using MATLAB software and the Runge-Kutta methods.Furthermore,a parametric study is conducted to investigate the effects of the mass of LBE and different road classes on the vibration responses during transportation.The results demonstrate that,regardless of the road class,the vibration frequency primarily lies within the 16 Hz range.Additionally,it is found that the amplitude can increase by up to 150%under Class F.Overall,the findings contribute to a deeper understanding of the transportation process and provide valuable insights for enhancing the design and operation of reactors during transportation.

关 键 词：移动式反应堆 运输振动 多体动力学 公路等级 

分 类 号：TL3[核科学技术—核技术及应用]