ARJ21飞机抖振升限特性研究及运行裕度分析.pdfVIP

Jan.2024中国民航飞行学院学报

Vol.35No.1JournalofCivilAviationFlightUniversityofChina33

ARJ21飞机抖振升限特性研究及运行裕度分析

王可1黄玉璇！薛创业2

（1中国民用航空飞行学院四川广汉6183072成都航空有限公司四川成都610200)

摘要：抖振是一种飞机各部件在飞行中发生振动的现象，威胁飞行安全。现利用

ARJ21飞机配套性能软件PES仿真计算多种运行重量、推力状态、速度条件下的升限，分析了

低、中、满上座率条件下飞机在气动和推力限制及节油速度升限。结果表明：在M0.4-M0.69

区间内，节油速度升限要远小于气动和推力限制的抖振升限，安全裕度高；而在M0.69-M0.82

区间内，节油速度升限随速度增加而逐渐逼近气动和推力限制的抖振升限直到相交，且重量越

重逼近趋势越明显，交点对应的升限高度越低，安全裕度也越低。

关键词：抖振PES性能软件升限仿真计算

ResearchonBuffetCeilingCharacteristicsandOperationalMarginAnalysisofARJ21Aircraft

WangKelHuangYuxuan!XuChuangye?

(1CivilAviationFlightUniversityofChina,Guanghan618307SichuanChina

2ChengduAirlinesCO.,Ltd,Chengdu610200SichuanChina)

Abstract:Buffetingisaphenomenoninwhichvariouscomponentsofanaircraftvibrateaccord-

ingtothenaturalfrequencyofthestructureduringflight,posingagreatthreattoflightsafety.The

performanceevaluationsoftware(PES)isusedtosimulateandcalculatetheceilingoftheARJ21aircraft

undervariousoperatingweights,thruststatesandspeedconditionsandanalysestheaircraftscorre-

spondingceilingofaerodynamiclimitations,thrustlimitationsandfuel-savingspeedsunderlowoccu-

pancy,mediumoccupancyandfulloccupancyconditions.Theresultsshowthat:intheMachnumber

rangeofM0.4-M0.69,theceilingoftheaircraftflyingatafuel-savingspeedismuchsmallerthanthe

buffetceilingoftheaircraftunderaerodynamiclimitationsandthrustlimitations,andthesafetymargin

ishigher.IntheMachnumberrangeofM0.69-M0.82,theceilingoftheaircraftflyingatfuel-saving

speedgraduallyapproachesthebuffetceilingoftheaircraftunderaerodynamiclimitand