基于燃气发生器的环形浮囊展开过程模拟研究  

Simulation Study on Unfolding Process of Annular Floating Bag Based on Gas Generator

作　　者：谢昭男 张凯[1] 温金鹏[1] 杨文彬[2] XIE Zhaonan;ZHANG Kai;WEN Jinpeng;YANG Wenbin(Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang 621900, China;Southwest University of Science and Technology, Mianyang 621010, China)

机构地区：[1]中国工程物理研究院总体工程研究所,四川绵阳621900 [2]西南科技大学,四川绵阳621010

出　　处：《兵器装备工程学报》2021年第5期20-25,78,共7页Journal of Ordnance Equipment Engineering

基　　金：国家自然科学基金青年基金项目(11602253)。

摘　　要：建立了燃气发生器内弹道数学模型和无人潜航器上浮的环形浮囊有限元模型,采用LS-DYNA软件以控制体积法对浮囊的燃气充气展开过程进行了模拟研究,分析了深度、喷嘴管径、装药量对浮囊展开过程的影响。结果表明:深度与浮囊充气时间呈正相关关系;喷嘴管径和装药量与浮囊充气时间呈负相关关系,该结果能为浮囊的设计与应用提供依据。A mathematical model of the internal ballistics of the gas generator was established,and the finite element model of the annular floating bag of unmanned underwater vehicle(UUV)was established.Then,based on the control volume method,LS-DYNA software was deployed to carry out a simulation study on the gas-filled expansion of the floating bag,and the influence of depth,nozzle diameter,and charge on the deployment process of the floating bag were analyzed.The results show that the depth is directly proportional to the inflation time,and the nozzle diameter and charge are inversely proportional to the inflation time,which provides a basis for the design and application of the floating bag.

关 键 词：环形浮囊 初始矩阵法 燃气发生器 控制体积法 

分 类 号：TJ630.2[兵器科学与技术—武器系统与运用工程]