摘要
针对动能子弹对机场跑道的侵彻问题,提出一种与试验相结合的工程算法。该算法基于空腔膨胀理论推导出侵彻深度、最大过载,结合试验结果推算静阻力系数,再将该系数应用于对相同介质的侵彻计算。运用该工程算法可以计算出单层介质、机场跑道最大侵彻深度、最大过载、经历时间以及弹体在多层介质中的运动规律。通过与不同计算方法的比较,表明该算法需要参数较少且结果更为可信。该算法计算结果与试验结果比较吻合,两者之间相对误差的平均值为12.8%。
Aimed to the problem of projectile penetrating airport runway, the engineering arithmetic combined with experiment was proposed. Based on the cavity expansion theory, the penetration depth and the maximal acceleration were deduced in the arithmetic, and the coefficient of static resistance was calculated with the experiment result, which will be used to calculate the problem for penetrating the same material. By using the arithmetic, the depth, maximal acceleration, time and movement rule of the projectile penetrating airport runway can be obtained. The calculation needs less parameters and its result is more authentic. The calculation result is in good agreement with the experiment result, and the average value of relative error is 12.8%.
出处
《兵器材料科学与工程》
CSCD
北大核心
2012年第2期12-15,共4页
Ordnance Material Science and Engineering
关键词
子弹
机场跑道
侵彻深度
工程算法
projectile
airport runway
penetration depth
engineering arithmetic
