基于空中爆炸冲击波的动态爆心定位方法研究

为解决空中动态爆炸爆心位置难以测定的问题，研究一种基于冲击波超压测试结果的爆心坐标五区定位方法.将数字压力记录仪在爆炸区域组成测试方阵，根据测点距预估爆心距离将所有测点划分到5个区域.通过在每个区域选取一个测点共5个测点的方式得到多组测点，以每组测点的相对坐标和冲击波超压值为原始数据，基于空中静态爆炸自由场冲击波传播规律、动态爆炸冲击波超压工程计算公式、壁面反射规律等建立函数方程组.借助Matlab软件和莱文-马夸特方法迭代求得多组爆心坐标，通过格拉布斯法剔除异常数据，将剩余数据求平均值得到最终的爆心3维坐标.结合实爆试验，将计算结果与监测结果进行对比，结果表明该方法求解爆心坐标是可靠有效的. 

Research on Dynamic Burst Location Method Based on Air Blast Shock Wave

In order to solve the problem that the position of the airborne dynamic explosion is difficult to measure, a five-zone positioning method based on the results of the shock wave overpressure test was studied. The digital pressure recorder was composed of a test square in the explosion area, and all the measuring points were divided into five zones according to the estimated distance from the estimated point of the heart. Multiple sets of measuring points were obtained by selecting one measuring point in each zone, and the relative coordinates of each set of measuring points and the shock wave overpressure value were taken as raw data. The functional equations were established based on the airborne static explosion free-field shock wave propagation law, the dynamic explosion shock wave overpressure engineering calculation formula, and the wall reflection law. The Matlab software and the Levin-Marquard method were used to iteratively get a set of core coordinates, and the Gurbus method was used to eliminate the anomaly data and calculate the average of the remaining data to obtain the final three-dimensional coordinates of the core. Combined with the actual explosion test, the calculation results were compared with the monitoring results. The results show that the method is reliable and effective for obtaining core coordinates.