飞机撞击下核电厂安全壳载荷曲线相关问题研究

发布时间：2018-01-31 06:59

本文关键词： 安全工程核电站安全壳飞机撞击评述　出处：《安全与环境学报》2015年06期 　论文类型：期刊论文

【摘要】：针对大型商用飞机对核电厂反应堆安全壳恶意撞击的安全评估需求,综述了国外确定飞机撞击安全壳载荷曲线的基础理论、试验测试技术和数值模拟方法。首先,从理论上对飞机撞击安全壳的载荷特性和Riera撞击模型进行分析,给出了Riera模型的基本假设、模型各项物理意义及模型的求解方法,明确了靶体碰撞表面的冲击载荷(力)由静载项和动载项组成;其次,分析总结了确定Riera模型中压损载荷参数的试验方法和真实飞机撞击载荷测量的试验技术和实施方法,指出大型商用飞机对核电厂反应堆安全壳恶意撞击属"软冲击"范畴,撞击载荷可用Riera模型计算得到;再者,在数值模拟方面,总结了采用有限元技术进行飞机撞击载荷计算和安全评估的数值模拟方法及其发展趋势;最后,在分析国内开展飞机撞击载荷研究面临问题的基础上,指出从理论上建立飞机撞击载荷-时间曲线计算模型及方法,并通过试验和数值模拟验证是国内确定大型商用飞机撞击安全壳结构载荷曲线比较可行的技术路线。
[Abstract]:According to the requirement of safety assessment of large commercial aircraft for malicious impact on reactor containment of nuclear power plant, the basic theory of determining the load curve of aircraft impact containment in foreign countries is summarized in this paper. First, the load characteristics of aircraft impact containment and the Riera impact model are analyzed theoretically, and the basic assumptions of Riera model are given. The physical meaning of the model and the solution method of the model, the impact load (force) of the target impact surface is made up of static load term and dynamic load term. Secondly, the test method of determining the parameters of pressure loss load in Riera model and the test technology and implementation method of real aircraft impact load measurement are analyzed and summarized. It is pointed out that the malicious impact of large commercial aircraft on reactor containment of nuclear power plant belongs to the category of "soft impact", and the impact load can be calculated by Riera model. Thirdly, in the aspect of numerical simulation, the numerical simulation method and its development trend of aircraft impact load calculation and safety assessment using finite element technique are summarized. Finally, based on the analysis of the problems in the research of aircraft impact load in China, it is pointed out that the model and method of aircraft impact load-time curve calculation are established theoretically. It is feasible to determine the loading curve of the large commercial aircraft impact containment structure by test and numerical simulation.
【作者单位】：环境保护部核与辐射安全中心;北京理工大学爆炸科学与技术国家重点实验室;
【基金】：国家科技重大专项(2013ZX06002001-015)
【分类号】：TM623;TL364.3
【正文快照】： o引合 n 自2001年美国的“911事件”(尤其是2002年9月10日,阿拉伯电视台al-Jazeera的录音采访报道称“911恐怖袭击”计划中曾将核电厂列为袭击目标之一[1])以来,核电厂安全壳能否抵御大型商用飞机的恶意撞击就成为各国核安全监管机构、核电厂研发人员乃至公众关注的焦点问题

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