常规运载火箭解决落区安全问题的方法
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摘要
常规运载火箭在内陆发射场发射,落区在国内。火箭子级返回过程中存在空中解体或触地爆炸的可能性,落区安全性问题比较突出。常规运载火箭短时间内无法实现重复使用的目标,为解决落区安全性问题,在火箭不需做较大改进的情况下,采用将推进剂空中排放或者发动机空中再次点火将剩余推进剂燃尽措施,降低火箭子级落地速度并解决子级触地爆炸的问题;同时采用栅格舵控制子级落点,将落区范围缩小,提高常规运载火箭发射落区安全性。
The conventional rocket is launched from the inland launch site,with the domestic impact zone.The rocket stage is possible to explode or decompose during the re-entry phase,causing significant safety issues in the impact zone.It is difficult for the conventional rocket to realize reuse in a short time.To solve the safety issue,propellant is released or burned up via engine re-ignition in the air,so as to decrease down-to-ground speed and to avoid explosion without major modifications of the rocket.In addition,grid fins are used to control the impact location of the rocket stage,reducing the impact zone range and thus improving safety.
The conventional rocket is launched from the inland launch site,with the domestic impact zone.The rocket stage is possible to explode or decompose during the re-entry phase,causing significant safety issues in the impact zone.It is difficult for the conventional rocket to realize reuse in a short time.To solve the safety issue,propellant is released or burned up via engine re-ignition in the air,so as to decrease down-to-ground speed and to avoid explosion without major modifications of the rocket.In addition,grid fins are used to control the impact location of the rocket stage,reducing the impact zone range and thus improving safety.
引文
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[10]果琳丽,刘竹生,朱维增,等.未来运载火箭重复使用的途径选择及方案设想[J].导弹与航天运载技术,1998(6):1-6.GUO L L,LIU Z S,ZHU W Z,et al.Method options and conceptual design of a future fully reusable rocket[J].Missiles and Space Vehicles,1998(6):1-6(in Chinese).
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