AP1000安全壳在大型商用飞机撞击下的动力响应分析

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (10) : 260-269.

论文

汪大洋1，汪秀清1，杨强1，张永山1，吴成清2

作者信息 +

Dynamic response analysis of a large commercial aircraft hitting the AP1000 containment vessel

WANG Dayang1, WANG Xiuqing1, YANG Qiang1, ZHANG Yongshan1, WU Chengqing2

Author information +

文章历史 +

摘要

自9•11事件以来，核电站抵御大型商用飞机撞击一直是核安全领域的热点问题。采用ANSYS/LS-DYNA软件建立波音737 max 8和AP1000安全壳的精细化有限元模型，基于Riera法验证了飞机撞击有限元模型准确性，进行了5种不同初始撞击速度(100m/s、150m/s、200m/s、250m/s和300m/s)和5种不同撞击高度(30m、39m、47m、54m和65m)的飞机撞击安全壳全过程数值模拟，研究和分析了飞机的撞击力时程和动能时程、钢制安全壳的动力响应、等效应力分布和其局部破坏情况。结果表明，飞机撞击过程引擎对撞击力的贡献最大，约为机身撞击力的3~4倍；筒身等效钢梁处的撞击力峰值较非等效钢梁处大，最大达到了后者的171%(速度为300m/s)；安全壳筒身段与穹顶的交界处为安全壳结构的最危险位置，在此位置处安全壳环向和竖向贯穿尺寸均大于同初始撞击速度下其他位置的贯穿尺寸，最大环向、竖向贯穿尺寸分别达到29.68m、17.86m；当飞机的撞击速度大于150m/s时，撞击区域钢板等效应力影响范围随初始撞击速度的增加而减少，撞击等效钢梁处的钢板等效应力分布范围相对于撞击非等效钢梁处的更大。研究成果可为类似核岛安全壳的抗飞机冲击安全评估和设计提供参考。

Abstract

Since September 11, 2001, the protection of nuclear power plants against the impact of large commercial aircraft has been a hot issue in the field of nuclear safety. Using ANSYS/ls-dyna software, this paper established a Boeing 737 Max 8 and AP1000 refinement finite element model of containment, the plane finite element model are validated based on Riera method, accuracy and validity of the five different initial impact velocity (100 m/s, 150 m/s, 200 m/s, 250 m/s and the 300 m/s) and five different impact height (39 m and 30 m and 47 m, 54 m and 65 m) of the plane struck containment process numerical simulation, The time history of the impact force and kinetic energy of the aircraft, the dynamic response of the steel containment, the equivalent stress distribution and the local damage of the aircraft are studied and analyzed. The research results show that the engine's contribution to the aircraft impact force is about 3 ~ 4 times of the front of the fuselage, equivalent steel tube body of the peak impact force equivalent beam is not large, the largest is up to 171% of the latter (at the rate of 300 m/s), containment cylinder body and the dome of the junction to the containment structure of the most dangerous position, in this location to containment ring and vertical throughout the size with the initial impact velocity were greater than other locations throughout the size, ring to the largest size is 29.68 m, the largest vertical throughout the size is 17.86 m, the dome in all conditions are not damaged, The equivalent steel beam can withstand the aircraft impact very well, when the impact velocity of the aircraft is greater than 150m/s, the influence range of equivalent steel plate stress in the impact area of the containment vessel decreases with the increase of initial impact velocity, and the distribution range of equivalent steel plate stress in the impact area is larger than that in the non-equivalent steel beam. The research results can provide reference for the safety assessment and design of the similar nuclear island containment vessel against aircraft impact.

导出引用

汪大洋1，汪秀清1，杨强1，张永山1，吴成清2. AP1000安全壳在大型商用飞机撞击下的动力响应分析[J]. 振动与冲击, 2022, 41(10): 260-269

WANG Dayang1, WANG Xiuqing1, YANG Qiang1, ZHANG Yongshan1, WU Chengqing2. Dynamic response analysis of a large commercial aircraft hitting the AP1000 containment vessel[J]. Journal of Vibration and Shock, 2022, 41(10): 260-269

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