燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
GAS TURBINE EXPERIMENT AND RESEARCH
2014年
4期
27-30,38
,共5页
肖文富%朱彦伟%田琳
肖文富%硃彥偉%田琳
초문부%주언위%전림
航空发动机%飞行试验%尾吊布局%机动飞行%进气畸变%可恢复失速
航空髮動機%飛行試驗%尾弔佈跼%機動飛行%進氣畸變%可恢複失速
항공발동궤%비행시험%미조포국%궤동비행%진기기변%가회복실속
aero-engine%flight test%tail-mounted%maneuver flight%inlet distortion%recovery stall
利用飞行试验的方式,选取相同高度和马赫数条件,对某尾吊布局飞机进行机翼水平失速试验,考核几种发动机功率状态对进气畸变的响应。试验结果表明:除飞行慢车状态外,其他几种功率状态均捕捉到了发动机失速掉转现象,且捕获的发动机失速为典型的可恢复失速;尾吊布局的发动机,进气畸变水平随攻角的增大而增大;发动机随着功率状态的增加趋向于更易失稳的状态。另外,飞机姿态变化速率分析表明,飞机姿态剧变是发动机失速掉转的诱因之一。
利用飛行試驗的方式,選取相同高度和馬赫數條件,對某尾弔佈跼飛機進行機翼水平失速試驗,攷覈幾種髮動機功率狀態對進氣畸變的響應。試驗結果錶明:除飛行慢車狀態外,其他幾種功率狀態均捕捉到瞭髮動機失速掉轉現象,且捕穫的髮動機失速為典型的可恢複失速;尾弔佈跼的髮動機,進氣畸變水平隨攻角的增大而增大;髮動機隨著功率狀態的增加趨嚮于更易失穩的狀態。另外,飛機姿態變化速率分析錶明,飛機姿態劇變是髮動機失速掉轉的誘因之一。
이용비행시험적방식,선취상동고도화마혁수조건,대모미조포국비궤진행궤익수평실속시험,고핵궤충발동궤공솔상태대진기기변적향응。시험결과표명:제비행만차상태외,기타궤충공솔상태균포착도료발동궤실속도전현상,차포획적발동궤실속위전형적가회복실속;미조포국적발동궤,진기기변수평수공각적증대이증대;발동궤수착공솔상태적증가추향우경역실은적상태。령외,비궤자태변화속솔분석표명,비궤자태극변시발동궤실속도전적유인지일。
Wing-level stall flight tests have been done to examine the response of engine power to inlet dis-tortion, using a tail mounted aircraft at the same height and speed. Engine speed drop phenomena have been captured in several power cases, except flight idle power. The test results show that the engine stall drop phenomenon is a typical recovery stall; the engine inlet distortion increases with the angle of attack;the higher engine power level becomes the more unstable tends to be;the analysis of aircraft attitude rate in-dicates that the dramatic change of aircraft attitude may be one of the causes for the engine stall.