On Concentration Detection of FAE Cloud at High-speed Intersection between FAE Cloud and Sub-fuze

doi:10.3969/j.issn.1000-1093.2021.05.001

Abstract

Abstract: The large-area detonation of the second-detonation fuel-air-explosive (FAE) warhead is related to the initiation control under the condition of optimal fuel cloud concentration when FAE cloud intersects with fuze at high speed. Based on the attenuation characteristics of the reflection coefficient of pulsed ultrasound in the cloud, a prototype of a FAE sub-fuze was developed, and a rocket sled test platform was built for detecting the intersection concentration of FAE cloud with the sub-fuze with rocket sled speeds of 75 m/s and 100 m/s. The curve of the sub-fuze dynamic recognition cloud concentration under high-speed environment and the gradient characteristics of pulse ultrasonic attenuation at different concentrations were obtained through test. The test results show that the proposed method can be used to obtain the high-speed intersection concentration identification of FAE cloud at the different speeds. The calculated error is not more than 15% at the nominal concentrations of 75 g/m³, 150 g/m³ and 225 g/m³.

Key words: fuel-air-explosiveprojectile, fuze, ultrasonicattenuation, rocketsled, high-speedintersection, concentrationdetection

CLC Number:

TJ430.6⁺8

FU Shenghua， LOU Wenzhong， LI Chubao, PAN Xiaojian, WANG Jingkui, JI Tongan, LIU Weitong. On Concentration Detection of FAE Cloud at High-speed Intersection between FAE Cloud and Sub-fuze[J]. Acta Armamentarii, 2021, 42(5): 897-902.

References ［1］

［1］

张奇, 覃彬, 白春华,等. 中心装药对FAE燃料成雾特性影响的试验分析[J]. 含能材料, 2007, 15(5):447-450.ZHANG Q，QIN B，BAI C H，et al． Effect of total energy of center explosive charge on fuel dispersal characteristic feature［J］．Chinese Journal of Energetic Materials，2007，15(5):447－450．(in Chinese)[2］陈默, 白春华, 刘庆明. 长直水平管道中铝粉/空气混合物爆炸试验研究[J]. 安全与环境学报, 2011, 11(5):161-164.CHEN M, BAI C H, LIU Q M. Experimental study on explosion of aluminum powder/air mixture in long straight pipeline[J]. Journal of Safety and Environment, 2011, 11(5):161-164. (in Chinese)[3］ CHEN J C, MA X, MA Q J. Study on concentration and turbulence of solid-liquid FAE in dispersal process[J]. Defence Technology, 2018, 14(6):657-660. [4］李席，王伯良，韩早，等．液固复合FAE云雾状态影响因素的试验研究［J］．爆破器材，2013，42(5):23-26．LI X，WANG B L，HAN Z，et al． Expermental study on influencing factors of the cloud status of liquid-solid fuel air explosive［J］．Explosive Materials，2013，42(5): 23-26．(in Chinese)[5］丁珏，刘家骢．液体燃料爆炸抛撒和 FAE 形成过程的数值模拟［J］．南京理工大学学报，2000，24(2): 168-171．DING J，LIU J C．Numerical simulation on the process of explosive dispersal for forming FAE cloud［J］．Journal of Nanjing University of Science and Technology，2000，24(2): 168-171．(in Chinese)[6］ ZHANG Q，WEI K Z，LUO A M，et al． Numerical simulation on dispersal character of fuel by central HE［J］．Defence Science Journal，2007，57(4): 425-433．[7］陈嘉琛，张奇，马秋菊，等．固体和液体混合燃料抛撒过程数值模拟［J］．兵工学报，2014，35(7): 972-976．CHEN J C，ZHANG Q，MA Q J，et al． Numerical simulation of dispersal process of solid-liquid mixed fuel ［J］．Acta Armamentarii，2014，35(7): 972-976．(in Chinese)[8］ YAMAZAKI H, TOJO K, MIYANAMI K. Concentration profiles of solids suspended in a stirred tank[J]. Powder Technology, 1986, 48(3): 205-216.[9］ OMOTAYO K, Paul R. A, MICHAEL J. P, et al. Cashdollar effectiveness of dust dispersion in the 20-L Siwek chamber[J]. Journal of Loss Prevention in the Process Industries, 2010, 23(1): 46-59.[10］郭明儒, 娄文忠, 金鑫, 等.燃料空气炸药固体燃料浓度动态分布试验研究[J]. 兵工学报, 2016, 37(2):226-231.GUO M R，LOU W Z,JIN X，et al． Experimental research on dynamic concentration distribution of FAE solid fuel［J］．Acta Armamentarii, 2016, 37(2):226-231. (in Chinese)[11］田昌，苏明旭，蔡小舒. 基于超声法测量气固两相流浓度实验研究[J]. 工程热物理学报, 2013，34(8):1487-1490. TIAN C, SU M X, CAI X S. Experimental study on measurement of gas-solid two-phase flow concentration based on ultrasonic method[J]. Journal of Engineering Thermophysics, 2013,34(8): 1487-1490. (in Chinese)[12］ MOLERO M, SEGURA I, APARICIO S, et al. On the measurement of frequency-dependent ultrasonic attenuation in strongly heterogeneous materials[J]. Ultrasonics, 2010, 50(8):824-828.[13］ GENOVS V, GOSLBEZ J, CARRIN A, et al. Optimized ultrasonic attenuation measures for non-homogeneous materials[J]. Ultrasonics, 2016, 65:345-352.[14］ GU J F, SU M X, CAI X S. In-line measurement of pulverized coal concentration and size in pneumatic pipelines using dual-frequency ultrasound[J]. Applied Acoustics, 2018, 138:163-170.

[1]	YAN Xiaopeng, WANG Ke, LIU Qiang, HAO Xinhong, YU Honghai. Jamming Signal Design of Pseudo-code Phase Modulation Fuze Based on Duffing Oscillator [J]. Acta Armamentarii, 2022, 43(4): 729-736.
[2]	JIN Luxuan, WEN Quan, WANG Yushi, WANG Guangyu, ZHANG Zhibiao. Vertical Drop Impact Characteristics of Flat Base Projectile without Package and Fuze with Bottom-down [J]. Acta Armamentarii, 2022, 43(2): 260-272.
[3]	MA Mengxin， LI Rong, NIU Lanjie. Evaluation Index of Disturbance Superposition Degree in Multi-layer Penetration Acceleration Signal [J]. Acta Armamentarii, 2022, 43(1): 20-28.
[4]	ZHANG Jinming， ZHANG He， DAI Keren， YU Da， YANG Benqiang. Preparation of Elastic Porous Composite Material and Its Energy-absorption Characteristics [J]. Acta Armamentarii, 2022, 43(1): 159-168.
[5]	YAO Lixin， ZHAO Xiaoyao， WANG Shuaixiang， YU Yongqiang. Detection Probability of Four-quadrant Circumferential Laser Fuze of Anti-aircraft Rocket Projectile for Swarm Unmanned Aerial Vehicle [J]. Acta Armamentarii, 2022, 43(1): 218-225.
[6]	PAN Yue， LI Dinghua， YANG Rongjie， HAN Yanhui， LOU Wenzhong. Performance of Thermal Protection Coating of Fuze and Its Packaging Materials in Cook-off Test [J]. Acta Armamentarii, 2021, 42(6): 1169-1177.
[7]	XIE Ruizhen， CHU Enyi， DAI Xuhan， SU Qian， XUE Yan， REN Xiaoming， LIU Lan， LIU Wei. Design and Detonation Transfer/explosion Interruption Performance of Micro Initiation Train [J]. Acta Armamentarii, 2021, 42(6): 1178-1184.
[8]	ZHAO Xin, JI Yongxiang, LUO Xibin, LIU Shefeng, NING Xiaolei. Computation Method for the Optimal Burst Height of Proximity Fuze Based on Improved Particle Swarm Optimization Algorithm [J]. Acta Armamentarii, 2021, 42(5): 924-929.
[9]	YAN Amin， PI Aiguo， WANG Jian， HUANG Fenglei， WANG Xiaofeng. The Method for Determining the Threaded Connection Parameters of Projectile-fuze System Based on Thin-layer Element Model [J]. Acta Armamentarii, 2021, 42(4): 743-754.
[10]	SONG Chengtian, ZHANG Yaoyan, LIU Qiang, LIU Bohu. Echo Characteristics of Continuous Wave Laser Fuze in Aerosol Environment [J]. Acta Armamentarii, 2021, 42(3): 499-510.
[11]	LI Changsheng， DONG Wenjie， CAO Juan， ZHU Chuanjun， ZHANG He. A Dual-directional Information Transmission Method for Fuze Wireless Setting System Based on Nonlinear Parity-time-symmetry [J]. Acta Armamentarii, 2021, 42(12): 2565-2574.
[12]	TANG Hui， JIAO Zhigang， ZHAO Dongzhi， ZHAO Lijun， ZHU Xiaoping. Calculation model for Operating Range of Proximity Fuze in Explosive Field of Explosive Reactive Armor [J]. Acta Armamentarii, 2021, 42(11): 2321-2326.
[13]	JI Tong'an， LOU Wenzhong， FU Shenghua， WANG Jinkui， LIU Weitong. Dynamic Rendezvous Concentration Detection Method for FAE Secondary Detonation Fuze and Blast Cloud [J]. Acta Armamentarii, 2021, 42(11): 2327-2332.
[14]	ZHAO Xin, JI Yongxiang, LIU Shefeng, CHEN Zhong, NING Xiaolei. Data Processing of Test of Fuze Arming Distance Measured Using Langlie Method Based on Bayesian Method [J]. Acta Armamentarii, 2021, 42(1): 26-32.
[15]	YAN A'min， WANG Xiaofeng， WANG Jian, PI Aiguo， HUANG Fenglei. Identification of Thread Connection Parameters of Projectile-fuze System Based on Thin-layer Element Method [J]. Acta Armamentarii, 2020, 41(7): 1288-1298.