浅水中爆炸水底介质对水中冲击波峰值压力影响的试验研究

发布时间：2018-09-17 16:34

【摘要】：作为评判水中爆炸冲击波强度的一个重要因素,水中冲击波峰值压力研究至关重要。在满足爆炸相似律的基础上对水中爆炸试验的相似要求进行推导,建立试验条件下水中冲击波峰值压力的回归模型。在两种水底介质、不同水深情况下进行试验,采集不同测点的水中冲击波的峰值压力,运用π定理和量纲分析、最小二乘法对试验数据进行分析,得出了符合爆炸相似律的公式,并验证了回归公式的准确性。通过显著性检验可知浅水中爆炸中测点和装药的距离对水中冲击波峰值压力的影响最大,水深因素的影响可忽略。对不同水底介质试验中的数据分析得出水底介质对峰值压力影响较大,软泥夹石水底试验中测得冲击波峰值压力约为软泥水底试验中冲击波峰值压力的4/3倍。
[Abstract]:As an important factor to judge the intensity of underwater blast wave, the study of peak pressure of shock wave in water is very important. On the basis of satisfying the similarity law of explosion, the similarity requirement of underwater explosion test is deduced, and the regression model of peak pressure of shock wave in water under experimental conditions is established. The peak pressure of shock wave was collected from two kinds of underwater medium with different water depth, and the test data were analyzed by 蟺 theorem and dimension analysis, and the least square method was used to analyze the test data. The formula in accordance with the explosive similarity law is obtained, and the accuracy of the regression formula is verified. The significance test shows that the distance between the measuring point and the charge in the explosion in shallow water has the greatest influence on the peak pressure of shock wave in water and the influence of the water depth factor can be neglected. It is found that the peak pressure of the shock wave is about 4 / 3 times of the peak pressure of the shock wave measured in the rock intercalation test of the soft mud bottom by the analysis of the data in the experiments of different underwater media. The results show that the peak pressure of the shock wave is about 4 / 3 times of the peak pressure of the shock wave in the soft mud bottom test.
【作者单位】：解放军理工大学野战工程学院;武汉军械士官学校;
【基金】：总后基建营房部项目(BY209J033)
【分类号】：O383.1

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