火炸药学报2026，Vol.49Issue(5)：532-544,13.DOI:10.14077/j.issn.1007-7812.202601032
硼/硝酸钾含能材料筛分工艺的离散元模拟及其对燃烧性能的影响
DEM Simulation of the Screening Process for Boron/Potassium Nitrate-Based Energetic Materials and Its Effect on Combustion Performance
摘要
Abstract
To explore the coupling relationship between process parameters,microstructure and combustion performance of boron-potassium nitrate(BPN)energetic materials during the vibrating screening process,the Discrete Element Method(DEM)combined with experimental tests were carried out.Based on the similarity theory,a geometric-dynamic nonlinear scaling method was proposed to establish the DEM scaled model for BPN particle sieving.The influences of vibration frequency and amplitude on sieving efficiency,average particle size(D50)and bulk density were analyzed,while the calorific value,pres-sure rise behavior and flame propagation velocity of BPN samples were tested by a closed burster and linear combustion device.The results indicate that vibration amplitude exerts a more prominent effect on particle average particle size(D50)and bulk density than frequency,serving as the dominant control factor for sieving.In the tested parameter range,the parameter combi-nation of 45 Hz and 0.4 cm presents the optimal sieving performance with the minimum average particle size(D50)of 261.785 μm.Meanwhile,the BPN sample prepared under this condition delivers superior energy release properties,with a pressur-ization rate of 39.49MPa/s and a linear combustion rate of 109.11 mm/s.关键词
物理化学/BPN含能材料/离散单元法/DEM/硼/硝酸钾/振动筛分/颗粒粒径调控/相似理论Key words
physical chemistry/BPN energetic materials/Discrete Element Method/DEM/boron-potassium nitrate/vibratory screening/particle size regulation/similarity theory分类
军事科技引用本文复制引用
赵智超,龚玮明,周诗钧,强文学,SABIT TURSYNBEK,刘旭文,李经纬,陈俊宏,刘玉蓉..硼/硝酸钾含能材料筛分工艺的离散元模拟及其对燃烧性能的影响[J].火炸药学报,2026,49(5):532-544,13.基金项目
国家自然科学基金(No.22305100,No.22405104) （No.22305100,No.22405104）
中华人民共和国人力资源和社会保障部(No.S20250314,No.S20250315,No.Y20240022,No.H20240275) （No.S20250314,No.S20250315,No.Y20240022,No.H20240275）
湖北省科技厅(No.2025AFB460,No.2025DJC012) （No.2025AFB460,No.2025DJC012）
湖北省教育厅(No.F2023033,No.Q20234414) （No.F2023033,No.Q20234414）
武汉市科创(No.2025040601020173,No.20250911A07) （No.2025040601020173,No.20250911A07）
湖北省自然科学基金(No.JCZRQNB202600702) （No.JCZRQNB202600702）
武汉市自然科学基金(No.2026040301020082) （No.2026040301020082）
