|
| Effects of Parameters of Charge Cover on Underwater Movement of Shaped Charge Jet |
| |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2023.02.001 |
| KeyWord:shaped charge jet water medium charge cover motion characteristic ALE method penetration |
| Author | Institution |
| OU Jing |
Qian Xuesen College,Nanjing , China |
| YANG Yi-zhao |
Qian Xuesen College,Nanjing , China |
| YU Wen-jie |
Qian Xuesen College,Nanjing , China |
| TANG Kui |
National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The work aims to study the effects of the structural parameters of the charge cover on the movement of shaped charge jet in water and improve the movement characteristics of shaped charge jet in water. Numerical simulation of water penetration by conical casing jet was carried out with the multi-material element ALE method, and the effects of cone angle and thickness on the movement parameters of shaped charge jet were analyzed. The results showed that the cone angle of conical cover and the thickness of charge cover had obvious effects on the shape, velocity and acceleration of shaped charge jet in water. The remaining velocity of the invading body after entering the water of 10 cm was analyzed, and it was found that in the process of increasing the cone angle of the charge cover from 30° to 150°, the remaining speed increased first and then decreased, and reached the fastest at 90°; when the thickness of the charge cover was between 1.5 mm and 4 mm, the remaining speed changed little, and when the thickness was between 4 mm and 6 mm, the remaining speed began to decrease significantly. According to the results of the numerical simulation in this work, when the cone angle is 90°, the jet formed by the charge cover with a thickness of 4 mm performs better in the water, the jet formed has the longest penetration depth, and the remaining speed after invading the aqueous medium of 10 cm is the largest, and the storage capacity is the strongest. |
| Close |
|
|
|