数字模拟和实验研究形成的pentaprism定向的MEFP
Jiageng Song1,2, Xigui Tao3, Zailin Yang4
1College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, 150001, Heilongjiang, China.
Scientific reports
|July 23, 2024
概括
这项研究介绍了一种新的五角镜多重爆炸式成型弹 (MEFP) 设计. 优化的内参数提高了弹子的完整性和穿透精度,减轻了破裂和偏移冲击等问题.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 弹道学 弹道学 弹道学
背景情况:
- 爆炸式成型弹头 (EFP) 提供了诸如高速和对初始条件不敏感等优势.
- 现有的EFP设计面临着稳定性和准确性的挑战,特别是在多个弹子配置中.
- 了解多个EFP (MEFP) 的形成动态对于提高其性能至关重要.
研究的目的:
- 为了研究一个新型的定向五边形镜MEFP的成型性能,它有五个层.
- 分析影响成型结果的因素,并确定透不准确的原因.
- 通过实验验证和数值模拟优化MEFP设计.
主要方法:
- 一个定向五边形镜的实验验证 MEFP.
- 开发和应用MEFP形成的数值模拟模型.
- 在EFP特征上对内厚度和高度进行参数分析.
主要成果:
- 实验EFP显示出高飞速,但显示出偏移冲击和多次透.
- 数字模拟显示了EFP骨折和由于不对称的爆炸波导致的尾部不完全关闭.
- 增加的内厚度提高了EFP头部长度和侧面比,但降低了速度和尾部骨折的发生率.
- 增加MEFP高度改善了EFP速度,头比,爆炸波对称性,并减少了尾部关闭问题.
结论:
- 拟议的五边形镜MEFP设计显示了高速应用的潜力.
- 航母的几何结构对EFP的形成,完整性和飞行特征产生重大影响.
- 优化层厚度和MEFP高度对于实现对称引爆和精确透至关重要.
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