Numerical simulations of a large-scale cooling tower against the impact of commercial aircrafts
Numerical simulations of a large-scale cooling tower against the impact of commercial aircrafts
复制标题
大型冷却塔对抗商用飞机影响的数值模拟
DOI：
10.1016/j.tws.2019.106367
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发表时间：
2019-11
影响因子：
6.4
通讯作者：
Q Fang
中科院分区：
文献类型：
--
作者：
J J Tang;H Wu;S T Ke;Q Fang
大型冷却塔作为核电站中最高、最大的建筑物，更容易受到商用飞机的意外或故意撞击，而相关研究较少。采用弹靶干扰法，对大型冷却塔在典型大中型商用飞机空客A320和A380撞击下的动力响应进行了数值计算。首先，利用HyperMesh程序建立了巢湖双曲冷却塔和上述两种飞机的精化有限元模型。然后，通过与大型可变形导弹的经典MeppenII-4撞击试验(第二系列Meppen4撞击试验中的第四发)和修正的Riera力函数的比较，分别验证了混凝土模型和飞机模型的有效性。此外，还利用显式动力分析程序LS-DYNA对两架典型飞机相撞的冷却塔进行了数值模拟。对整个撞击过程进行了再现，并对撞击力、壳体混凝土的损伤和破坏、飞机的速度等进行了分析和讨论。最后，进一步分析了两架飞机撞击速度、角度、位置等参数对冷却塔损伤失效的影响。
As the highest and largest building in the nuclear power plant, the large-scale cooling tower is more likely to suffer the accidental or deliberate impact of the commercial aircraft, while few related studies have been conducted. By adopting the missile-target interaction method, the dynamic responses of the large-scale cooling tower under the impact of typical medium and large commercial aircrafts, i.e., Airbus A320 and A380, are numerically evaluated. Firstly, the refine finite element (FE) models of Chinese Chaohu hyperbolic cooling tower as well as the above two aircrafts are established by using the HyperMesh program. Then, by comparing with the classic Meppen-II-4 impact test (the fourth shot of the second series of Meppen impact tests) of large deformable missile and the modified Riera force function, the validations of concrete and aircraft models are verified respectively. Furthermore, the explicit dynamic analysis program LS-DYNA is used to perform the numerical simulations of the cooling tower collided by the two typical aircrafts. The whole impact processes are reproduced, and the impact force, damage and failure of the shell concrete, velocity of the aircraft are examined and discussed. Finally, the parametric influences of the impact velocity, angle, and position of two aircrafts on the damage and failure of cooling tower are further performed.
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DOI：
--
发表时间：
2009
期刊：
Engineering Blasting
影响因子：
--
作者：
Yang Jun
通讯作者：
Yang Jun
DOI：
10.1016/j.proeng.2016.12.176
发表时间：
2017
期刊：
Procedia Engineering
影响因子：
--
作者：
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通讯作者：
M. Sadique;M. Iqbal;P. Bhargava
DOI：
10.1061/(asce)cf.1943-5509.0001096
发表时间：
2017-12
影响因子：
2.5
作者：
Q. Yu;X. Gu;Yi Li;F. Lin
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Q. Yu;X. Gu;Yi Li;F. Lin
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通讯作者：
I. Sandler;F. Dimaggio;G. Baladi
影响因子：
5.5
作者：
Q. Yu;X. Gu;Yi Li;F. Lin
通讯作者：
Q. Yu;X. Gu;Yi Li;F. Lin