球形装药水下爆炸近场测量的连续探针法研究

doi:10.3969/j.issn.1000-1093.2019.01.001

兵工学报 ›› 2019, Vol. 40 ›› Issue (1): 1-7.doi: 10.3969/j.issn.1000-1093.2019.01.001

球形装药水下爆炸近场测量的连续探针法研究

李科斌¹，李晓杰^1,2，王小红¹，闫鸿浩¹

（1.大连理工大学工程力学系，辽宁大连 116024； 2.大连理工大学工业装备结构分析国家重点实验室，辽宁大连 116024）

收稿日期:2018-03-26 修回日期:2018-03-26 上线日期:2019-03-12
通讯作者: 李晓杰(1963—)，男，教授，博士生导师 E-mail:robinli@dlut.edu.cn
作者简介:李科斌(1988—)，男，博士研究生。E-mail: lee_dlut@126.com
基金资助:
国家自然科学基金项目（11272081、11672067）

Study of Continuous Velocity Probe Method for Near-field Underwater Explosion Measurement of Spherical Charge

LI Kebin¹， LI Xiaojie^1,2， WANG Xiaohong¹， YAN Honghao¹

(1.Department of Engineering Mechanics, Dalian University of Technology, Dalian 116024, Liaoning, China; 2.State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian 116024, Liaoning, China)

Received:2018-03-26 Revised:2018-03-26 Online:2019-03-12

摘要/Abstract

摘要： 为了在水下爆炸的单次试验中连续获得炸药爆轰波和近场冲击波的时程曲线，研制了一种压导式连续电阻丝探针，并基于此设计了球形装药水下爆炸测试系统。采用粉状黑索今（RDX）炸药进行120 mm直径的球形装药水下爆炸试验，测量获得了多组爆轰波-冲击波时程曲线。通过对爆轰波段数据进行拟合得到了待测RDX炸药的爆速，利用冲击波段数据计算得到了炸药爆压、绝热指数以及水中冲击波的衰减规律，并与康姆莱特半经验公式和数值模拟结果进行了对比。结果表明：运用新型电阻丝探针测得的RDX炸药参数与理论值相比，爆速、爆压和绝热指数的相对误差分别小于3%、5%和2%；模拟得到的近场冲击波峰压和速度曲线与试验结果基本吻合，最大误差不超过10%.

关键词: 球形装药, 水下爆炸, 连续压导探针, 近场冲击波, 数值计算

Abstract: A novel pressure-conducted velocity probe was developed to continuously measure the propagation traces of detonation wave and near-field shock wave in a single underwater explosion test. An underwater explosion measuring system with the new probe for spherical charge was designed. The repeated experiments of 120 mm-diameter spherical RDX charge were performed, and the time-history curves of several sets of detonation-shock waves were measured in the experiments. The detonation velocities of RDX explosive under test were obtained by fitting the detonation and shock wave data, respectively, and the detonation pressure, adiabatic exponent, and attenuation rule of underwater shock wave were calculated from the time-history curves of detonation-shock waves, which were compared with the calculated results of Kamlet semi-empirical formula and the numerically simulated results. The results show that the relative errors of the measured and calculated detonation velocity, detonation pressure and adiabatic exponent are not more than 3%, 5% and 2%, respectively. The simulated peak pressure and propagation velocity of near-field shock wave are basically in agreement with the experiments, of which maximum errors are less than 10%. Key

Key words: sphericalcharge, underwaterexplosion, continuouspressure-conductedprobe, near-fieldshockwave, numericalcalculation

中图分类号:

O382⁺.1

李科斌，李晓杰，王小红，闫鸿浩. 球形装药水下爆炸近场测量的连续探针法研究[J]. 兵工学报, 2019, 40(1): 1-7.

LI Kebin， LI Xiaojie， WANG Xiaohong， YAN Honghao. Study of Continuous Velocity Probe Method for Near-field Underwater Explosion Measurement of Spherical Charge[J]. Acta Armamentarii, 2019, 40(1): 1-7.

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球形装药水下爆炸近场测量的连续探针法研究

Study of Continuous Velocity Probe Method for Near-field Underwater Explosion Measurement of Spherical Charge

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