装药过载环境力等效模拟实验技术研究  

Research on an equivalent simulation experimental technology for overloading environmental forces of charge

作　　者：杜烨[1] 周炜智 黄求安 李强[1] DU Ye;ZHOU Weizhi;HUANG Qiuan;LI Qiang(College of Mechatronic Engineering,North University of China,Taiyuan 030051,Shanxi,China;Automation Research Institute Co.,Ltd.,China South Industries Group Corporation,Mianyang 621000,Sichuan,China)

机构地区：[1]中北大学机电工程学院,山西太原030051 [2]中国兵器装备集团自动化研究所有限公司,四川绵阳621000

出　　处：《爆炸与冲击》2024年第7期95-104,共10页Explosion and Shock Waves

基　　金：军科委基础加强技术领域基金(2021-JCJQ-JJ-1195,2023-JCJQ-JJ-0264);山西省自然科学基金面上项目(20210302124196,202203021211097)。

摘　　要：为解决装药安全可靠性能实验成本高、强过载环境测试难度大等瓶颈问题,以等效模拟弹体侵彻钢板时内部装药过载环境力为目标,基于数值模拟方法,设计了装药过载环境力等效模拟实验装置,并开展了等效模拟实验,突破了同时满足加载压力大于1 GPa和脉冲宽度大于100μs的技术难点。结果表明,弹丸侵彻钢板时装药受到的过载为正弦波单脉冲。在装置中采用波形调整器不仅能够调控加载到待测药表面的波形,还能对压力的衰减产生大幅影响。随着波形调整器厚度的增大,加载在待测药表面的压力逐渐减小,脉冲宽度显著增大;随着飞片厚度增大,飞片获得的驱动速度逐渐减小,加载在待测药表面的压力明显减小,脉冲宽度变化不明显。装药过载环境力模拟装置形成的脉冲特征值与弹丸侵彻钢靶过程的数值模拟结果对比,超压峰值误差最高为5.71%,脉宽误差最高为14.8%,均低于15%,验证了用该装置模拟弹体侵彻钢靶时装药加载状态的等效性。To solve the bottleneck problems such as the high cost of charge safety and reliability test and the difficulty of strong overload environment test,the overload environment of the charge when a projectile penetrates a steel plate was simulated using AUTODYN finite element numerical simulation software,aiming at the equivalent simulation of the overload environmental force of the internal charge when the projectile penetrates the steel plate.Based on the parameters of the waveform,pressure peak,and pulse width obtained from the simulation,a charge loading simulation experimental device composed of an initiation system,loading system,auxiliary system,and pressure test system was designed,and the charge overload environmental force equivalent simulation experiment was carried out.To a certain extent,the equivalence of the charge loading state,when the experimental system simulated the projectile penetrating the steel target at a speed of 500−1200 m/s,was verified,which broke through the requirement that the loading pressure was greater than 1 GPa and the pulse width was greater than 100μs.The results indicate that the overload pulse received by the projectile penetrating the steel plate charge is a sine wave single pulse.The waveform adjuster can not only regulate the generated waveform but also have a significant impact on the attenuation of pressure values.As the thickness of the waveform adjuster increases,the pressure loaded on the surface of the test drug gradually decreases,and the pulse width significantly increases.As the thickness of the flyer increases,the driving speed obtained by the flyer gradually decreases,and the pressure loaded on the surface of the test drug significantly decreases,with no significant change in pulse width.The comparison between the pulse characteristic values formed by the loading simulation test device and the numerical simulation results of the projectile penetrating the steel target shows that the maximum error of the overpressure peak is 5.71%,and the maximum error of the f

关 键 词：过载环境力 等效模拟实验 飞片冲击 侵彻加载 

分 类 号：O389[理学—流体力学] TQ560.1[理学—力学]