Controllable combustion behaviors of the laser-controlled solid propellant

作     者：Bu-ren Duan Hao-nan Zhang Li-zhi Wu Zuo-hao Hua Zi-jing Bao Ning Guo Ying-hua Ye Rui-qi Shen Bu-ren Duan;Hao-nan Zhang;Li-zhi Wu;Zuo-hao Hua;Zi-jing Bao;Ning Guo;Ying-hua Ye;Rui-qi Shen

作者机构：School of Chemical Engineering Narging University of Science and TechnologyNarjing 210094China Instifute of Space PropulsionNanjing University of Science and Technology Nanjing 210094China Micro-Nano Energetic Devices Key LaboratoryMinistry of Industry and Informnation TedhinologyNanjing210094China Shanghai Space Propulsion Technology Research InstiruteShanghai201109China 

出 版 物：《Defence Technology（防务技术）》 (Defence Technology)

年 卷 期：2022年第18卷第1期

页      面：38-48页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：This work was supported by the Shanghai Aerospace Science&Technology Innovation Fund[grant number SAST201363],and the Fundamental Research Funds for the Central Universities[grant number 30919012102 in part] We gratefully acknowledge the technical support provided by Hao-yu Wang,Wei-kang Chen and Zhi-jing Xu(Shanghai Space Propulsion Technology Research Institute,China) 

主　　题：Laser-con trolled solid propellant Laser ablation Multiple ignition Controllable combustion Combustion be haviors 

摘      要：Microsatellites have been widely applied in the fields of communication,remote sensing,navigation and science exploration due to its characteristics of low cost,flexible launch mode and short development ***,conventional solid-propellant have difficulties in starting and interrupting combustion because combustion is autonomously sustained after ignition Herein,we proposed a new type of solid-propellant named laser-controlled solid propellant,which is sensitive to laser irradiation and can be started or interrupted by switching on/off the continuous wave *** demonstrate the feasibility and investigate the controllable combustion behaviors under different laser on/off conditions,the combus tion parameters including burning rate,ignition delay time and platform pressure were tested using pressure sensor,high-speed camera and thermographic *** results showed that the increase of laser-on or laser-off duration both will lead to the decrease of propellant combustion performance during re-ignition and re-combustion *** is mainly attributed to the laser attenuation caused by the accumulation of combustion residue and the change of chamber ambient *** the multiple ignition tests revealed that the increased chamber ambient temperature after combustion can make up for the energy loss of laser attenuation and expansion of chamber ***,the laser-controlled combustion performance of solid propellant displayed a decrease trend with the addi-tion of ignition ***,the results still exchibited good laser-controlled agility of laser-controlled solid propellant and manifested its inspiring potential in many aspects of space missions.