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1、第30卷第11期航空學(xué)報(bào)Vol130No1112009年11月ACTAAERONAUTICAETASTRONAUTICASINICANov12009文章編號:100026893(2009)1122093207飛機(jī)攔阻鉤碰撞動(dòng)力學(xué)和攔阻鉤縱向阻尼器性能柳剛,聶宏(南京航空航天大學(xué)飛行器先進(jìn)設(shè)計(jì)技術(shù)國防重點(diǎn)學(xué)科實(shí)驗(yàn)室,江蘇南京210016)DynamicsofBounceofAircraftArrestingHookImpactingwithDeckandPerformanceofArrestingHookLongit
2、udinalDamperLiuGang,NieHong(KeyLaboratoryofFundamentalScienceforNationalDefense2AdvancedDesignTechnologyofFlightVehicles,NanjingUniversityofAeronauticsandAstronautics,Nanjing210016,China)摘要:在考慮艦載機(jī)降落平臺(tái)縱搖和橫搖的基礎(chǔ)上,建立了飛機(jī)攔阻鉤六自由度碰撞反彈模型,得到了攔阻鉤接觸道面后反彈的動(dòng)力學(xué)性能。分析了航母縱搖和橫搖下
3、攔阻鉤碰撞反彈成因,并分別考慮了縱搖角和橫搖角對攔阻鉤反彈角速度及機(jī)身與道面給予攔阻鉤碰撞沖量的影響;研究了攔阻鉤碰撞后的反彈位移,在考慮攔阻索能順利上鉤的前提下,分析了攔阻鉤縱向阻尼器的緩沖阻尼特性。結(jié)果表明:因航母橫搖,碰撞后攔阻鉤出現(xiàn)了左右的反轉(zhuǎn)角速度及碰撞沖量;攔阻鉤反彈后在自身重力作用下不能使攔阻索順利上鉤,在加入縱向阻尼器情況下,攔阻鉤第1次反彈高度及回落時(shí)間均滿足攔阻索上鉤的條件。關(guān)鍵詞:攔阻鉤;碰撞;碰撞沖量;縱搖;橫搖;縱向阻尼器+中圖分類號:V226;V271.492文獻(xiàn)標(biāo)識(shí)碼:AAbstrac
4、t:Takingintoconsiderationthepitchandrollofacarrieraircraftlandingplatform,asix2degreeimpac2tingmodelofanaircraftarrestinghookisestablishedandthebouncedynamicperformanceofthehookaftertouchdownisobtained.Theimpactingdynamicexplanationsofthehookwithpitchandrollof
5、thecarrierarestudied,andthebounceanglevelocityandimpulseofcollisionbytheaircraftanddeckaffectedbythepitchandrollanglesofthecarrierareexplored.Thedisplacementofthehookafterimpactingwiththedeckisstudied.Inordertoengagesthearrestingcable,thebufferinganddampingper
6、formanceofthehooklongitudinaldamp2erisalsoanalyzed.Theresultsshowthattheanglevelocityandimpulseofcollisionofahookinthehorizontalplaneisnonzero,andthehookcannotengagethecableafterimpactingwiththedeckbygravitation.However,withtheadditionofahooklongitudinaldamper
7、,thehookbounceheightandthetimeofthehookreturningtotheinitialpositionforthefirsttimecanbothsatisfytheengagementconditionsofthearrestinghook.Keywords:arrestinghook;impact;impulseofcollision;pitch;roll;longitudinaldamper艦載機(jī)著陸時(shí)從攔阻鉤第1次接觸道面到機(jī)電液比例控制的飛機(jī)攔阻系統(tǒng)。航母手冊中對航輪接觸
8、道面這段時(shí)間內(nèi),攔阻鉤因撞擊道面而反母縱搖和橫搖進(jìn)行了分析并指明減小甲板角將減彈。攔阻鉤在初始反彈后應(yīng)具有足夠低的高度,小攔阻鉤反彈。艦載機(jī)進(jìn)場規(guī)范對飛機(jī)下滑、艦[728]且能迅速地轉(zhuǎn)向甲板,使得其能成功攔套住一根載機(jī)下沉速度也作了初步的研究。因此,本文[1]甲板攔阻索。針對攔阻鉤接觸道面瞬時(shí)被反彈后,在考慮航母[2]縱搖和橫搖基礎(chǔ)上運(yùn)用碰撞理論建立了攔阻鉤
