新一代大型运载火箭多约束起飞漂移量控制研究  

Research of Multi-constraints Lift-off Drift Control for New Generation Large Launch Vehicle

作　　者：张宇[1] 王辉[1] 黄聪 李学锋[1] 刘敏劼 Zhang Yu;Wang Hui;Huang Cong;Li Xue-feng;Liu Min-jie(Beijing Aerospace Automatic Control Institute,Beijing,100854)

机构地区：[1]北京航天自动控制研究所,北京100854

出　　处：《导弹与航天运载技术》2021年第4期7-10,共4页Missiles and Space Vehicles

摘　　要：新一代大型运载火箭长征五号为中国目前推力最大的现役火箭,5m直径芯级捆绑4个3.35m助推器,起飞质量达到869t,火箭竖立在活动发射平台上时,传统火箭使用的芯级4点支撑方式已不能满足要求,改为助推器12点支撑方式。火箭周围存在液氧服务塔、液氢服务塔、支撑点等多项空间约束,并且增加了对滚动角偏差的要求,对起飞漂移控制要求更加苛刻。采用了起飞多约束抗漂移技术,实现了火箭起飞段安全出塔。New generation large vehicle Long March 5 is the largest rocket in China at present,5-meters diameter Core bundles four 3.35-meters-booster,take-off weight is 869 tons.The rocket erected in activity launch platform,traditional rockets using core-four-point supporting methods cannot meet the requirements,now to support of 12 points.There are multiple space constraints around the rocket,such as liquid oxygen service tower,liquid hydrogen service tower,supporting points,etd.And the limits for rolling angle deviation are increased,the take-off drift control requirements are more strict.Multi-constraint anti-drift technology is adopted to realize the safe exit tower of launch vehicle during lift-off stage.

关 键 词：大型运载火箭 起飞漂移 姿态控制 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]