多点起爆网络装药及性能

为了研究多点起爆网络装药对爆轰波输出同步性及起爆能力的影响,以超细奥克托今(HMX)为主体炸药,硝化棉(NC)为粘结剂,(HMX/NC=95∶5)为沟槽传爆药装药,设计了一种3点同步刚性起爆网络,理论分析和测定了起爆网络在不同装药密度下的同步误差,对比试验了沟槽压装装药技术,对传爆药进行了表征,测试了起爆网络相关的爆轰性能,优化了起爆网络装药结构。结果表明,提高起爆网络装药密度能够增加起爆可靠性和降低同步误差,装药密度从1.17 g·cm~(-3)增加到1.47 g·cm~(-3),起爆网络的同步误差从300 ns降低到150 ns。以JH-2压装药柱作为输出端装药,超细HMX/NC传爆药作为沟槽装药,采用沟槽压装装药技术,可以使同步起爆网络的爆轰波输出同步性约为100 ns。

Experimental and Performance Test of a Multi-point Initiation Synchronicity Charge

To study the effect of multi-point initiation circuit charge on detonation wave output synchronicity and initiation capability, a rigid three-point synchronous initiation circuit was designed using ultrafine Octogen (HMX) as main explosive, nitrocellulose (NC) as binder, 95/5-HMX/NC as groove booster charge. The synchronicity error of initiation circuit at different charge density was theoretically analyzed and experimentally measured. The groove press loading charge technique was compared and tested. The booster explosive was characterized, the detonation performances related to initiation circuit were tested and the initiation circuit charge structure was optimized. Results show that increasing circuit charge density can increase the initiation reliability and reduce the synchronicity error. The synchronicity error of initiation circuit decreases from 300 ns to 150 ns when the charge density increases from 1.17 g·cm^-3 to 1.47 g·cm^-3. Taking pressed JH-2 cylinder charge as output charge and ultrafine HMX/NC as groove booster, use of groove press loading charge technique can make the detonation wave output synchronicity of synchronous initiation circuit as about 100 ns.