Influence Investigation of Structural Parameters on Cutting Performance of Flexible Linear Shaped Charge
- 摘要
|
- 图/表
|
- 访问统计
|
- 参考文献
|
- 相似文献
|
- 引证文献
|
- 资源附件
|
- 文章评论
摘要:采用模压工艺制备了圆管型聚能切割索，并结合切割实验与数值模拟，系统研究了壳体材料、壳体厚度、“V”型槽张开角及炸高4种结构参数对切割效果的影响规律。结果表明：所制备的聚能切割索可形成高温、高速片状射流，有效切割10 mm厚铝板；数值模拟结果与实验结果吻合良好，误差范围为1.6%~8.1%；壳体材料对切割深度的影响最为显著，壳体厚度、“V”型槽张开角及炸高对切割深度的影响呈先增后减的趋势；射流头部速度与壳体厚度及“V”型槽张开角之间呈负线性相关；最优结构参数为壳体厚度0.5 mm、“V”型槽张开角60°、炸高2 mm。研究结果可为聚能切割索的结构优化及工程应用提供理论依据。
Abstract:Tubular flexible linear shaped charges (LSCs) were fabricated using compression molding technology, and in combination with experiments and numerical simulations, the influence patterns of four structural parameters—shell material, shell thickness, "V" groove angle, and burst height on the cutting performance were systematically investigated. The results show that: the fabricated LSCs can generate high-temperature, high-speed planar jets to effectively cut a 10 mm thickness aluminum plate; Numerical simulations have good consistency with the experimental results, with an error margin of 1.6% to 8.1%; Shell material has the most significant impact on cutting depth, the impact tendency of shell thickness, "V" groove angle, and burst height exhibits an initial increase followed by a decrease in cutting depth; The jet head velocity shows a negative linear correlation with shell thickness and "V" groove angle; Optimal structural parameters are shell thickness of 0.5 mm, "V" groove angle of 60°, and burst height of 2 mm. These findings provide theoretical guidance for the structural optimization and practical application of flexible linear shaped charges.
var swiper = new Swiper('.swiper_xq', {
navigation: {
nextEl: '.swiper-button-next',
prevEl: '.swiper-button-prev',
},
});
$(function(){
$('img').bigic();
});
jQuery(".slideTxtBox").slide({ trigger: "click" });
