双环境力耦合作用下小口径弹药引信火工品装药的力学响应
基金项目:
装备预研共用技术项目；国家自然科学基金青年基金项目（No.12202203）；江苏省自然科学基金青年基金项目（No. BK20210319）
The Mechanical Response for the Explosive in Small-Caliber Projectile Fuze Initiator under the Coupling of Dual Acting Forces
- 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:为探究轴向过载和由高转速引起的离心过载耦合作用下小口径弹药引信火工品装药的力学响应，采用ANSYS软件对实际发射情况和简化情况下药剂最大等效应力和最大静水压力的变化进行了数值模拟研究。结果表明，采用静态等效方法分析时，离心过载对药剂最大等效应力影响很小，基本可以忽略不计，但其对最大静水压力有一定影响；当药剂处于弹性变形阶段时，其最大等效应力基本由最大轴向过载决定，而由高转速产生的离心过载和轴向过载曲线周期对最大等效应力的影响很小；最大等效应力、最大静水压力均与最大轴向过载呈明显的线性关系。
Abstract:In order to investigate the mechanical response for the explosive in small-caliber projectile fuze initiator under the coupling effect of axial overload and centrifugal overload caused by high rotational speed, ANSYS software was used to numerically simulate the variation of the maximum effective stress and maximum hydrostatic pressure of the explosive under actual launch and simplified conditions. The results show that when using the static equivalent method for analysis, the effect of centrifugal overload on the maximum effective stress of the explosive is very weak and can be basically ignored, but it has a certain effect on the maximum hydrostatic pressure; When the explosive is in the stage of elastic deformation, its maximum effective stress is basically determined by the maximum axial overload, while the centrifugal overload induced by high rotational speed and axial overload curve period have little effect on the maximum effective stress; There is a clear linear relationship between maximum effective stress, maximum hydrostatic pressure, and maximum axial overload.
var swiper = new Swiper('.swiper_xq', {
navigation: {
nextEl: '.swiper-button-next',
prevEl: '.swiper-button-prev',
},
});
$(function(){
$('img').bigic();
});
jQuery(".slideTxtBox").slide({ trigger: "click" });
