CAJ | 학술논문

为了有效提升隔爆结构衰减爆炸冲击波的性能，将45＃钢、铝和有机玻璃进行不同组合，设计了顺序波阻抗梯度、逆序波阻抗梯度以及硬软硬三种多层隔爆结构。利用锰铜压阻传感器测压实验和数值计算对多层介质阻抗匹配特性对隔爆效果的影响进行了研究，获得了多层介质的不同组合引起的冲击波在传播过程中各层介质压力，理论分析、数值计算与实验结果吻合较好，并分析了第三层介质能量与冲量的变化规律。从不同方面得到的结果表明：逆序波阻抗梯度的输出冲击波压力最小，其第三层的能量与冲量最小，隔爆效果最佳。
위료유효제승격폭결구쇠감폭작충격파적성능，장45＃강、려화유궤파리진행불동조합，설계료순서파조항제도、역서파조항제도이급경연경삼충다층격폭결구。이용맹동압조전감기측압실험화수치계산대다층개질조항필배특성대격폭효과적영향진행료연구，획득료다층개질적불동조합인기적충격파재전파과정중각층개질압력，이론분석、수치계산여실험결과문합교호，병분석료제삼층개질능량여충량적변화규률。종불동방면득도적결과표명：역서파조항제도적수출충격파압력최소，기제삼층적능량여충량최소，격폭효과최가。
In order to improve the performance of explosion interruption structures to attenuate explosion shock wave effectively,the explosion interruption structures with sequential impedance matching gradient, reverse impedance matching gradient and hard-soft-hard layers were designed through different combinations of 45 #steel,Aluminum and PMMA.The influence of multilayered media impedance matching property on the explosion interruption effect was studied by using a manganin pressure-resistance sensor and numerical calculation.The pressure of each layer media was obtained due to shock wave caused with different combinations of multilayered media in a process of shock wave transmission.The test results were consistent with those of the theoretical analysis and numerical calculation,the change rules of energy and impulse in the third layer were analyzed as well.The results from different aspects showed that the structures with reverse impedance matching gradient have an optimal explosion interruption effect,their output shock wave pressure is the minimum,their third layer's energy and impulse are the minimum too.