载人航天
載人航天
재인항천
MANNED SPACEFLIGHT
2014年
5期
457-460
,共4页
王景国%卞韩城%陈学林%沈永康%赵文杰
王景國%卞韓城%陳學林%瀋永康%趙文傑
왕경국%변한성%진학림%침영강%조문걸
整流罩%残骸%落点%预报%模型
整流罩%殘骸%落點%預報%模型
정류조%잔해%낙점%예보%모형
fairing%debris%impact point%prediction%model
为了快速搜索CZ-2 F火箭整流罩残骸,研究了残骸坠落飞行规律和落点散布规律,建立了高空风修正的整流罩残骸落点预报模型,反推计算了以往任务整流罩残骸的特征面积,并按其分布规律分组计算了残骸坠落过程中出现的5类平均特征面积,依据出现概率将搜索范围缩小为5个32 km2的小区域,搜索面积减少了约90%。神舟十号任务中,整流罩残骸坠落于预报落区内,实际落点与预报落点间的距离小于2 km ,增强了搜索工作的针对性,提高了搜索效率。
為瞭快速搜索CZ-2 F火箭整流罩殘骸,研究瞭殘骸墜落飛行規律和落點散佈規律,建立瞭高空風脩正的整流罩殘骸落點預報模型,反推計算瞭以往任務整流罩殘骸的特徵麵積,併按其分佈規律分組計算瞭殘骸墜落過程中齣現的5類平均特徵麵積,依據齣現概率將搜索範圍縮小為5箇32 km2的小區域,搜索麵積減少瞭約90%。神舟十號任務中,整流罩殘骸墜落于預報落區內,實際落點與預報落點間的距離小于2 km ,增彊瞭搜索工作的針對性,提高瞭搜索效率。
위료쾌속수색CZ-2 F화전정류조잔해,연구료잔해추락비행규률화낙점산포규률,건립료고공풍수정적정류조잔해낙점예보모형,반추계산료이왕임무정류조잔해적특정면적,병안기분포규률분조계산료잔해추락과정중출현적5류평균특정면적,의거출현개솔장수색범위축소위5개32 km2적소구역,수색면적감소료약90%。신주십호임무중,정류조잔해추락우예보락구내,실제낙점여예보낙점간적거리소우2 km ,증강료수색공작적침대성,제고료수색효솔。
To realize the rapid searching the CZ-2F Rocket’s fairing debris, an impact point predic-tion model based on the correction of high altitude wind was proposed after in-depth study of the deb-ris’ falling down rule and the distribution of the impact point .The feature areas of the fairing debris in the former missions were calculated , then 5 kinds of average feature areas caused by the falling debris were figured out based on the distribution of the fairing debris , and the entire searching area was divided into 5 small areas of 32 km2 based on their appearance probabilities , which could reduce the actual searching area by 90 percent.In Shenzhou 10 mission, the fairing debris fell in the fore-casted area , the distance between the actual impact point and the forecasted point was less than 2 km.The results showed that this impact point prediction method could improve the efficiency of the debris search .