民用飞机设计与研究
民用飛機設計與研究
민용비궤설계여연구
CIVIL AIRCRAFT DESIGN AND RESEARCH
2014年
2期
3-5,44
,共4页
RAT空速%带载能力%模拟电负载
RAT空速%帶載能力%模擬電負載
RAT공속%대재능력%모의전부재
Ram Air Turbine Airspeed%Load Capacity%Simulated Electrical Load
飞机RAT的实际带载能力不仅取决于飞机空度,而且受到飞行姿态的制约,很难用理论公式准确推算。提出了一种飞行试验方法,分析特定的试飞测试数据,可获得飞机RAT的实际带载能力。试验包括RAT平飞带载和RAT侧滑带载两部分试飞。通过RAT平飞带载试验,得到不同重量下的RAT空速与飞机空速的关系曲线;通过RAT侧滑带载试验,可得到不同侧滑角飞行下RAT空速与飞机空速的关系曲线。结合试验结果,可以确定飞机在任意重量和飞行姿态下的RAT空速,进而获知RAT实际带载能力。
飛機RAT的實際帶載能力不僅取決于飛機空度,而且受到飛行姿態的製約,很難用理論公式準確推算。提齣瞭一種飛行試驗方法,分析特定的試飛測試數據,可穫得飛機RAT的實際帶載能力。試驗包括RAT平飛帶載和RAT側滑帶載兩部分試飛。通過RAT平飛帶載試驗,得到不同重量下的RAT空速與飛機空速的關繫麯線;通過RAT側滑帶載試驗,可得到不同側滑角飛行下RAT空速與飛機空速的關繫麯線。結閤試驗結果,可以確定飛機在任意重量和飛行姿態下的RAT空速,進而穫知RAT實際帶載能力。
비궤RAT적실제대재능력불부취결우비궤공도,이차수도비행자태적제약,흔난용이론공식준학추산。제출료일충비행시험방법,분석특정적시비측시수거,가획득비궤RAT적실제대재능력。시험포괄RAT평비대재화RAT측활대재량부분시비。통과RAT평비대재시험,득도불동중량하적RAT공속여비궤공속적관계곡선;통과RAT측활대재시험,가득도불동측활각비행하RAT공속여비궤공속적관계곡선。결합시험결과,가이학정비궤재임의중량화비행자태하적RAT공속,진이획지RAT실제대재능력。
The load capacity of airplane's ram air turbine ( RAT) depends not only on airplane airspeed, but al-so on the flight attitude. It is difficult to calculate by using theoretical equations. A flight test method is designed to determine the RAT's real-time load capacity by just analyzing some flight test data obtained. This method plans two test subjects:RAT load capacity test at level flight and RAT load capacity test at sideslip. The former test can obtain the variation of RAT airspeed with airplane airspeed for different weights, and the latter can bring us the re-lationship for different sideslip angles. The results of the two tests show that the RAT airspeed at any weight and flight attitude can be determined and further know its load capacity.