摘要
为提高无喷管发动机的比冲，从装药角度研究了在低燃速推进剂配方中加入短纤维以提高推进剂的抗冲刷性能，采用装药＂喷管＂收敛段的倒锥形造型技术及两种不同燃速推进剂的同心层装药，使无喷管发动机的比冲稳定在１８８２．０～１９８９．０Ｎ·ｓ／ｋｇ，满足了预定要求。与有喷管同类型发动机的内弹道性能比较，无喷管发动机的总冲量达到相当高的水平。
o improve specific impulse of nozzleless rocket motors, this paper has investigated the anti-erosion performance of low burning rate solid propellant mixed with short fibre, shaping technology of reversed cone nozzle in the contraction section of propellant 'nozzle' and concentric charging method of two solid propellants with various burning rates. The specific impulse of nozzleless rocket motorsis stabilized between 1882. 0～1989. 0 N· s/kg, which satisfies our requirement.The specific impulse of nozzleless rocket motors is extremely greater than that ofthe same rocket with nozzle.
出处
《推进技术》
EI
CAS
CSCD
北大核心
1994年第3期56-61,共6页
Journal of Propulsion Technology
关键词
无喷管
火箭发动机
固体推进剂
Nozzleless rocket engine, Solid propellant, Charge, Propellant casting
