汽车炸弹作用下球罐动力学响应的模拟研究  

Simulation Research on Dynamic Response of Speherical Tank Effected on Car Bomb

作　　者：冯伟涛[1,2] 方向[1] 谢立军[1] 刘金川[1] 陈刊[1] 

机构地区：[1]解放军理工大学工程兵工程学院 [2]75738部队

出　　处：《爆破》2011年第1期112-115,共4页Blasting

摘　　要：针对球形储罐在汽车炸弹作用下的动力学响应进行了数值模拟研究。采用ANSYS/LS-DYNA软件模拟计算了装药量为1 600 kg TNT汽车炸弹爆炸后在1 m、5 m和10 m距离内5 000 m3丁烯球罐罐体上的等效应力和位移随时间的变化关系。模拟结果表明,炸药边界距离球罐距离越近,罐体发生变形的时间越早,观察点的应力和位移值越大,汽车炸弹对罐体的破坏作用越明显。因此,在汽车炸弹作用下,球罐极有可能发生局部破坏,有必要在罐区周围采取一定的防护措施。The numerical simulation on dynamic response of spherical tank effected on the car bomb was researched.The ANSYS/LS-DYNA software was used to calculate the relationship among equivalent stress,dispalcement and time on a 5 000 m butylene spherical tank body when a 1 600 kg TNT car bomb exploded.The simulation results show that the metamorphosis of the spherical tank happens earlier and the effective stress and displacement is bigger when the spherical tank closer to the explosion center,then the damage on tank body is more obvious.So,on the effect of the car bombs,the partial damage is very likely to happen on the spherical tank,therefore,it is necessary to adopt some protection measures around the spherical tanks.

关 键 词：数值模拟 动力学响应 汽车炸弹 球罐 冲击波 

分 类 号：O383.3[理学—流体力学]