论文部分内容阅读
采用LS-DYNA软件,对动能弹侵彻机场跑道的过程及混凝土的性质对侵彻效果的影响进行了有效的数值模拟,得到了一定结构下动能弹侵彻机场跑道的侵彻深度、各层的穿透速度等特征.混凝土的性质决定了侵彻深度及破坏范围的大小.结果表明:随着混凝土弹模的增加,动能弹侵彻机场跑道深度有增加趋势,侵彻深度的增加,使得弹药爆炸时,跑道破坏的范围增加;而且随着混凝土弹模的增加,混凝土层的抗侵彻能力增强,研究结果对机场跑道的设计及要采取的抢修措施具有重要意义.
The LS-DYNA software is used to effectively simulate the process of penetration of the kinetic energy projectile into the runway of the airport and the influence of the concrete properties on the penetration effect. The penetration depth of the projectile penetrating the runway of the aerodrome under certain structure is obtained. The penetration velocity of the concrete.The nature of the concrete determines the penetration depth and the size of the damage range.The results show that with the increase of the concrete elastic modulus, the depth of the penetration of the kinetic energy missile penetrating the runway increases, the penetration depth increases, When the ammunition explodes, the scope of the runway destruction increases; moreover, as the concrete mold increases, the anti-penetration ability of the concrete layer increases. The research results are of great significance to the design of the runway and the repairing measures to be taken.