科技创新与应用2024，Vol.14Issue(9)：105-108,4.DOI:10.19981/j.CN23-1581/G3.2024.09.025
核电厂反应堆冷却剂系统抗震阻尼比研究
孙金雄1
作者信息
- 1. 西安交通大学 航天航空学院,西安 710000||中广核工程有限公司,广东 深圳 518000
- 折叠
摘要
Abstract
Based on the background that the nuclear safety supervision department has raised concerns about the value of damping ratio of seismic items in the safety review of new nuclear power plants in China in 2023,this paper introduces the value basis of damping ratio for seismic analysis in nuclear power engineering,points out the difference between the standard and engineering practice,and the resulting confusion.The function principle of damping ratio in dynamic analysis is expounded.The requirements of different standards and guidelines for damping ratio of mechanical equipment in the nuclear power field are compared,and it is pointed out that the relevant requirements of current standards are too conservative for the combination equipment or system composed of multiple components.The damping ratio of reactor coolant system and equipment in PWR nuclear power plant is studied,the value basis of the damping ratio of the system and equipment in nuclear power engineering practice in domestic and foreign is given,and some suggestions are put forward to solve the problem of insufficient value basis of the damping ratio of combined equipment or system in nuclear power engineering practice.关键词
核电厂/阻尼/抗震/反应堆冷却剂系统/核安全Key words
nuclear power plants/damping/seismic/reactor coolant system/nuclear safety分类
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孙金雄..核电厂反应堆冷却剂系统抗震阻尼比研究[J].科技创新与应用,2024,14(9):105-108,4.
