Page 73 - 《爆炸与冲击》2026年第3期
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第 46 卷 罗 贤,等: 一种新型胸部物理模型的设计及冲击响应分析 第 7 期
25
12.5 Boundary Boundary
Simulation Simulation
10.0 Experiment 20 Experiment
Displacement/mm 7.5 Displacement/mm 15
10
5.0
2.5 5
0 0.5 1.0 1.5 2.0 0 0.5 1.0 1.5 2.0
Time/ms Time/ms
(c) Chest displacement curve at 56.0 m/s (d) Chest displacement curve at 86.5 m/s
图 9 弹丸冲击力与胸部位移响应的模型验证
Fig. 9 Model verification using projectile impact force and chest wall displacement responses
x
表 13 SIR-X 弹丸冲击下仿真与试验 VC ma 结果及 AEP-99 标准对比
Table 13 Comparison of simulated and experimental VC max values under SIR-X projectile impact
based on NATO AEP-99
−1
VC max /(m·s )
−1
冲击速度/(m·s )
AEP-99 仿真 试验
56.0 0.28~0.33 0.308 0.312
86.5 0.78~0.85 0.803 0.844
此外,参考 Ndompetelo 等 [7] 的实验结果,选用 RB1FS、NS、CONDOR 等 3 种弹丸分别以 60~
63 m/s 冲击刚性墙,对比多组仿真与实验的力-时间及位移-时间响应(如图 10 所示),各弹丸仿真曲线与
其实验数据均吻合较好,平均相对误差均低于 20%,验证了仿真建模方法的普适性和可靠性。
3 000 25
Experiment [7]
Simulation 20
Force/N 2 000 Displacement/mm
60.0 m/s 15
1 000 10
5
Experiment
Simulation [7]
0 0.1 0.2 0.3 0.4 0 0.2 0.4 0.6 0.8
Time/ms Time/msTime/ms
(a) RB1FS projectile force response curves (b) RB1FS projectile displacement curves
30
Experiment [7] Experiment [7]
15 000
Simulation Simulation
Force/N Displacement/mm 25
63.0 m/s 10 000 20
15
5 000 10
5
0 0.2 0.4 0.6 0 0.5 1.0 1.5
Time/ms Time/ms
(c) CONDOR projectile force response curves (d) CONDOR projectile displacement curves
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