关于三层内的形状电荷的爆炸波传播及其对内的驱动特性的研究
Zhiwei Hao1, Zhijun Wang2, Yongjie Xu1,3
1College of Mechanical and Electrical Engineering, North University of China, Taiyuan, 030051, China.
Scientific reports
|April 16, 2024
概括
一种新的三层内设计通过优化爆炸波压力,显著提高了穿甲弹药的穿透性. 这种先进的结构,特别是使用像Al 2024-Copper-Tantalum这样的材料,与传统设计相比,提供了优越的喷气形成和冲击性能.
科学领域:
- 材料科学与工程 材料科学与工程
- 弹道学和装甲穿透能力
- 计算流体动力学和模拟计算
背景情况:
- 增加装甲保护需要提高穿甲弹药的伤害性能.
- 传统的单层和双层面临的局限性,在实现更深的透对先进的盔甲.
研究的目的:
- 设计和研究一种新的三层层结构,以提高成型弹药的透能力.
- 分析三层系统中的喷气形成机制和压力动态.
- 确定最佳的结构参数,以最大限度地提高投射弹的穿透深度.
主要方法:
- 使用AUTODYN软件对三层轮进行喷气形成的数值模拟.
- 分析爆炸波传播和压力变化作用于内饰的分析.
- 坐标优化实验用于研究料材料,角和脱离距离的影响.
主要成果:
- 三层层,特别是从低阻抗到高阻抗排列的材料 (例如,Al 2024-Copper-Tantalum),在喷气聚合点产生显著更高的压力.
- 最大轴压达到39.10 GPa,比双层增长22.00%,比单层增长53.03%.
- 材料匹配被证明是对透深度最有影响的因素,其次是形角度,而脱离距离的影响最小.
结论:
- 三层面设计通过优化压力动力学和材料阻抗匹配,有效地提高了喷气透深度.
- 具有不同冲击阻抗的材料的战略选择和排列对于最大限度地提高终端弹道性能至关重要.
- 这项研究为开发下一代具有卓越穿透能力的穿甲弹药提供了新的途径.
相关概念视频
Traveling Waves: Lossless Lines
140
The provided content explores the behavior of traveling waves on single-phase lossless transmission lines. It begins with a single-phase two-wire lossless transmission line of length Δx, characterized by a loop inductance LH/m and a line-to-line capacitance C F/m. These parameters result in a series inductance LΔx and a shunt capacitance CΔx.
140
Design Example: Automobile Ignition System
230
The automobile's ignition system plays a vital role by ensuring the timely ignition of the fuel-air mixture in each cylinder. This ignition is facilitated by a spark plug, which is composed of two electrodes separated by an air gap. A spark forms across this air gap when a substantial voltage is generated between the electrodes, leading to the ignition of the fuel.
One can generate a large voltage using a car battery of 12 volts with the help of inductors. Inductors are known for opposing...
One can generate a large voltage using a car battery of 12 volts with the help of inductors. Inductors are known for opposing...
230
Three-Winding Transformers
224
Three identical single-phase transformers can be configured to form a three-phase transformer connection, which involves high-voltage and low-voltage windings. The high-voltage windings are denoted by capital letters A-B-C, while the low-voltage windings are labeled with lowercase letters a-b-c, representing their respective phases. This notation helps distinguish between the high and low voltage sides of the transformer.
In the per-unit equivalent circuit of a grounded Y-Y three-phase...
In the per-unit equivalent circuit of a grounded Y-Y three-phase...
224
Shock Waves
2.0K
While deriving the Doppler formula for the observed frequency of a sound wave, it is assumed that the speed of sound in the medium is greater than the source's speed through it. When this condition is breached, a shock wave occurs.
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
When the source's speed approaches the speed of sound, constructive interference between successive wavefronts emitted by the source occurs immediately behind it. Initially, scientists believed that this constructive interference would result in such high...
2.0K
Thin-Walled Hollow Shafts
186
In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution...
186
Inductance: Single-Phase And Three-Phase Line
188
Understanding the inductance of transmission lines is crucial for efficient design and operation in electrical power systems. This discussion delves into the inductance characteristics of single-phase two-wire and three-phase three-wire transmission lines with equal phase spacing.
Single-Phase Two-Wire Line:
A single-phase line consists of two solid cylindrical conductors, denoted as x and y. Each conductor carries phasor currents ix and iy, respectively. Given that the sum of these currents is...
Single-Phase Two-Wire Line:
A single-phase line consists of two solid cylindrical conductors, denoted as x and y. Each conductor carries phasor currents ix and iy, respectively. Given that the sum of these currents is...
188


