水下爆炸条件下近药包表面能量测试技术研究
发布时间：2018-11-09 13:28
【摘要】：为测量水下爆炸条件下近药包表面的能量,提出基于预制飞片圆筒的水下爆炸条件下近药包表面能量测试技术。首先,采用AUTODYN软件,对水下爆炸条件下自由场和作用在飞片上的能流密度进行数值计算,通过对比两者随爆距的变化规律,对预制飞片圆筒间接获取近药包表面能量的可行性进行论证。然后,采用激光位移传感器和探针测量爆炸后的飞片速度,进而将飞片的动能除以面积计算得到作用在飞片上的能流密度。将能流密度的测试值与计算值进行对比,两者基本一致,表明采用预制飞片圆筒来测量水下爆炸条件下近药包表面的能量是可行的,同时验证飞片速度测量系统的有效性,为近药包表面载荷特性的理论研究和试验测试提供技术基础。
[Abstract]:In order to measure the energy of near charge surface under underwater explosion, a technique of near charge surface energy measurement based on prefabricated flyer cylinder was proposed. Firstly, the free field and the energy flow density acting on the flyer under underwater explosion condition are calculated by using AUTODYN software, and the variation law of the free field and the energy flow density acting on the flyer are compared by comparing them with the explosion distance. The feasibility of indirect obtaining the surface energy of the prefabricated flyer cylinder is demonstrated. Then, the laser displacement sensor and probe are used to measure the velocity of the flyer after explosion, and then the kinetic energy of the flyer is divided by the area to calculate the energy flow density acting on the flyer. By comparing the measured values of energy flow density with the calculated values, the results show that it is feasible to measure the energy near the charge surface under the condition of underwater explosion by using the prefabricated flyer cylinder, and at the same time to verify the effectiveness of the flyer velocity measurement system. It provides a technical basis for the theoretical study and experimental test of the surface load characteristics of near charge.
【作者单位】： 中国船舶科学研究中心;
【基金】：国家自然科学基金项目(51409234)
【分类号】：TJ6;O383.1
本文编号：2320543
[Abstract]:In order to measure the energy of near charge surface under underwater explosion, a technique of near charge surface energy measurement based on prefabricated flyer cylinder was proposed. Firstly, the free field and the energy flow density acting on the flyer under underwater explosion condition are calculated by using AUTODYN software, and the variation law of the free field and the energy flow density acting on the flyer are compared by comparing them with the explosion distance. The feasibility of indirect obtaining the surface energy of the prefabricated flyer cylinder is demonstrated. Then, the laser displacement sensor and probe are used to measure the velocity of the flyer after explosion, and then the kinetic energy of the flyer is divided by the area to calculate the energy flow density acting on the flyer. By comparing the measured values of energy flow density with the calculated values, the results show that it is feasible to measure the energy near the charge surface under the condition of underwater explosion by using the prefabricated flyer cylinder, and at the same time to verify the effectiveness of the flyer velocity measurement system. It provides a technical basis for the theoretical study and experimental test of the surface load characteristics of near charge.
【作者单位】： 中国船舶科学研究中心;
【基金】：国家自然科学基金项目(51409234)
【分类号】：TJ6;O383.1
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