摘要
燃烧不稳定长期困扰着固体火箭发动机的研发进程。针对固体火箭发动机出现的声燃烧不稳定问题,从增大声能损失、减小声能增益以及改变发动机声腔模态的固有频率三个角度出发,阐述了燃烧不稳定抑制方法的基本原理;同时,从工程应用角度将抑制方法分为调整固体推进剂配方、改变发动机结构以及装配抑制机械装置三类,详细介绍并总结了燃烧不稳定抑制方法及国内外相关的工程应用实例,并分析了复杂飞行状态下固体发动机燃烧稳定性的影响因素。通过分析相关案例,有助于针对不同类型的压力振荡设计有效的抑制手段,从而为研究人员提供相关设计依据与参考。
Combustion instability is a complex phenomenon affecting the development of solid rocket motors.Aiming at combustion instability,the basic principles of suppression methods on acoustic combustion instability of motor were expounded from three perspectives:increasing the acoustic energy loss,reducing the acoustic energy gain and changing the inherent frequency of motoracoustic cavity mode.At the same time,from the perspective of engineering application,the suppression methods were classified as:adjusting the solid propellant formulation,changing the motor structure and assembling the suppression mechanical device.The combustion instability suppression methods and related engineering application examples at home and abroad were introduced and summarized in detail.The influencing factors of combustion stability of solid rocket motor under complex flight conditions were analyzed.It is helpful to design effective suppression measures for different types of pressure oscillations,thus providing design reference for researchers.
作者
李军伟
王茹瑶
陈国锋
王丙寅
汪琪
卢健程
王宁飞
LI Junwei;WANG Ruyao;CHEN Guofeng;WANG Bingyin;WANG Qi;LU Jianchen;WANG Ningfei(Beijing Institute of Technology,Beijing 100081,China;Inner Mongolia Power Machinery Institute,Huhhot 010010,China)
出处
《固体火箭技术》
CAS
CSCD
北大核心
2023年第1期3-15,共13页
Journal of Solid Rocket Technology
关键词
声燃烧不稳定
固体火箭发动机
抑制方法
抑振装置
acoustic combustion instability
solid rocket motor
suppression methods
suppression devices
