含能材料2025，Vol.33Issue(10)：1218-1227,10.DOI:10.11943/CJEM2025035
典型引信烤燃输出压力表征及数值模拟
Characterization of Output Pressure and Numerical Simulation Method for Typical Fuze Cook-off
摘要
Abstract
To enable comprehensive prediction of typical fuze cook-off processes and address the challenge of quantifying output pressure,an advanced strain-gage pressure bar sensor was utilized for dynamic pressure acquisition during experimental investi-gations.A comprehensive coupled numerical framework was developed,integrating heat transfer models,Arrhenius reaction ki-netics,and ignition response mechanisms,to systematically analyze the cook-off behavior and generate detailed pressure pro-files of booster explosives.The kinetic parameters,such as activation energy and pre-exponential factors,were inversely deter-mined through the application of a Back Propagation(BP)neural network.Meanwhile,the state parameters that govern the igni-tion reaction equation were optimized using a multi-island genetic algorithm.Coupled simulations utilizing ANSYS Fluent and LS-DYNA within the Workbench platform were performed to numerically investigate the cook-off response under different heat-ing rates.This approach enables comprehensive full-process characterization from thermal reaction to ignition.The results indi-cate that slower heating rates shift the ignition zone toward the central region of the charge,thereby intensifying the severity of the reaction.关键词
引信/烤燃实验/压杆传感器/输出压力/数值模拟Key words
fuze/cook-off experimental/pressure bar sensor/output pressure/numerical simulation分类
武器工业引用本文复制引用
曹赫,余万千,肖有才,范晨阳,王志军,孙毅..典型引信烤燃输出压力表征及数值模拟[J].含能材料,2025,33(10):1218-1227,10.基金项目
国家自然科学基金(12372368) National Natural Science Foundation of China(No.12372368) （12372368）
