航空工程进展
航空工程進展
항공공정진전
ADVANCES IN AERONAUTICAL SCIENCE AND ENGINEERING
2012年
1期
120-124
,共5页
过冷大水滴结冰条件%后溜冰%防冰系统%结冰探测系统
過冷大水滴結冰條件%後霤冰%防冰繫統%結冰探測繫統
과랭대수적결빙조건%후류빙%방빙계통%결빙탐측계통
super-cooled large droplet icing condition%runback ice%anti-icing system%icing detection system
阐述了FAA颁布过冷大水滴规章的背景,浅析了即将新增的FAR25.1420过冷大水滴结冰条件条款,以及其对机翼防冰系统和结冰探测系统设计的影响;相比14CFR附录C结冰条件,过冷大水滴结冰条件的水滴撞击区较大,更容易在结冰防护区后部形成严重的后溜冰,应增加上表面弦向防护区的范围;基于已有的结冰探测系统,在机翼上表面容易形成后溜冰的部位,装备能够齐平安装的结冰探测器作为补充,是一种有效探测过冷大水滴结冰条件的方式;浅析了FAR25附录O过冷大水滴结冰条件的分类;给出了修订后的25.1093（b）的防冰译文。
闡述瞭FAA頒佈過冷大水滴規章的揹景,淺析瞭即將新增的FAR25.1420過冷大水滴結冰條件條款,以及其對機翼防冰繫統和結冰探測繫統設計的影響;相比14CFR附錄C結冰條件,過冷大水滴結冰條件的水滴撞擊區較大,更容易在結冰防護區後部形成嚴重的後霤冰,應增加上錶麵絃嚮防護區的範圍;基于已有的結冰探測繫統,在機翼上錶麵容易形成後霤冰的部位,裝備能夠齊平安裝的結冰探測器作為補充,是一種有效探測過冷大水滴結冰條件的方式;淺析瞭FAR25附錄O過冷大水滴結冰條件的分類;給齣瞭脩訂後的25.1093（b）的防冰譯文。
천술료FAA반포과랭대수적규장적배경,천석료즉장신증적FAR25.1420과랭대수적결빙조건조관,이급기대궤익방빙계통화결빙탐측계통설계적영향;상비14CFR부록C결빙조건,과랭대수적결빙조건적수적당격구교대,경용역재결빙방호구후부형성엄중적후류빙,응증가상표면현향방호구적범위;기우이유적결빙탐측계통,재궤익상표면용역형성후류빙적부위,장비능구제평안장적결빙탐측기작위보충,시일충유효탐측과랭대수적결빙조건적방식;천석료FAR25부록O과랭대수적결빙조건적분류;급출료수정후적25.1093（b）적방빙역문。
The background of super-cooled large droplet（SLD） icing condition regulation is introduced,and the new Sec.25.1420 SLD icing conditions regulations are analyzed in this paper.Compared with 14CFR appendix C icing condition,the wing usually has the large droplet impingement region,and can easily be resulted in runback ice after the ice protection region under SLD icing condition.So it is necessary to extend the chord of upper surface of ice protection region.In the supplement of typically icing condition system,installing the flush-mounted ice detector in the runback ice area is an effective means to detect SLD icing condition.The category of SLD icing condition is also analyzed,and the translation of FAR25.1093.（b） regulation is presented.
