Kev nthuav dav ntawm cov ntawv thov carbon fiber - aerospace helicopter blades, lossis tsaws rau Mars.
NASA's Ingenuity Mars nyoob hoom qav taub tab tom tshawb nrhiav Jezero Crater ntawm Mars, thaum NASA cov kws ua haujlwm tau sim cov pa roj carbon fiber ntau hauv ntiaj teb rau tiam tom ntej ntawm Mars helicopters. Cov nyoob hoom qav taub no tau tsim los ua kom dhau qhov kev ua tau zoo ntawm Ingenuity, tshwj xeeb tshaj yog rau Mars qauv rov qab los lub hom phiaj npaj rau xyoo 2030.
Lub atmospheric siab nyob rau saum npoo ntawm Mars yog tsawg tshaj li 1% ntawm lub ntiaj teb, thiab nws lub ntiajteb txawj nqus yog li ntawm ib feem peb. Vim qhov no tsis tshua muaj siab saum npoo, Ingenuity lub rotor ceev yuav tsum nyob nruab nrab ntawm 2400 thiab 2900 revolutions ib feeb (rpm) ya rau Mars. Qhov no yog qhov siab dua nyob rau hauv lub ntiaj teb, qhov twg helicopters feem ntau tsuas xav tau 500 mus rau 600 rpm ya.
Ingenuity nta plaub carbon fiber hniav teem nyob rau hauv ob counter-rotating rotors, uas txhais tau hais tias lawv tig nyob rau hauv opposite lus qhia, nrog ib tug ncua sij hawm ntawm 1.2 meters thiab kev khiav hauj lwm ntawm lub aforementioned rotor ceev ntawm 2400 rau 2900 rpm. Tsis tas li ntawd, Ingenuity hnyav kwv yees li 1.8 kilograms ntawm lub ntiaj teb, tab sis vim Mars lub ntiajteb txawj nqus tsuas yog ib feem peb ntawm lub ntiaj teb, nws hnyav tsuas yog 0.68 kilograms ntawm Martian nto.
Rau tiam tom ntej ntawm Mars helicopters, engineers ntawm NASA's Jet Propulsion Laboratory (JPL) nyob rau hauv Pasadena yog tsim cov hniav uas ntev 10 centimeters ntev tshaj li cov Ingenuity, featuring txawv designs thiab ntau zog.
Qhov zoo ntawm Carbon Fiber hauv Aerospace Applications
Cov pa roj carbon fiber ntau muaj ntau qhov kev ua tau zoo hauv kev lag luam aerospace uas cov khoom siv hlau tsis muaj, ua rau lawv ua tau zoo nyob rau hauv qhov hnyav ntawm qhov chaw thiab muab kev siv ntev.
High Strength-rau-Weight Ratio: Carbon fiber composites muaj npe nrov rau lawv qhov tshwj xeeb lub zog-rau-qhov hnyav piv. Cov yam ntxwv no ua rau cov kws ua haujlwm hauv aerospace tsim cov qauv teeb pom kev zoo yam tsis muaj kev cuam tshuam lub zog, yog li txhim kho roj efficiency thiab kev ua haujlwm tag nrho.
Kev nruj: Carbon fiber inherently muaj qhov nruj, muab kev ua haujlwm zoo heev. Qhov kev nruj no yog qhov tseem ceeb hauv kev siv aerospace, qhov twg cov khoom yuav tsum tswj lawv cov duab thiab tiv thaiv deformation nyob rau hauv aerodynamic thiab mechanical loads.
Fatigue Resistance: Cov pa roj carbon fiber ntau ua rau pom kev qaug zog ua haujlwm zoo, ua rau lawv tsim nyog rau cov khoom siv los ntawm kev sib tw, xws li tis thiab fuselage qauv. Cov cuab yeej no pab txhim kho lub neej ntev thiab ua haujlwm ntev ntawm cov qauv aerospace.
Corrosion Resistance: Tsis zoo li cov hlau, carbon fiber tsis corrode, uas yog qhov zoo rau kev siv aerospace uas nquag raug rau ib puag ncig hnyav (piv txwv li, qhov siab siab thiab qhov kub sib txawv).
Tsim Flexibility: Cov pa roj carbon fiber ntau tuaj yeem ua rau hauv cov duab nyuaj, tso cai rau kev tsim kom yooj yim dua. Qhov no tshwj xeeb tshaj yog muaj txiaj ntsig zoo hauv thaj chaw aerospace, qhov twg aerodynamic thiab cov qauv kev txiav txim siab feem ntau xav tau kev tsim qauv zoo nkauj.
Hluav taws xob conductivity: Cov pa roj carbon fiber ntau nthuav tawm hluav taws xob conductivity, uas tuaj yeem muaj txiaj ntsig zoo rau qee qhov kev siv aerospace, pab kom tsis txhob muaj hluav taws xob zoo li qub thiab hluav taws xob cuam tshuam, yog li muab kev ua haujlwm ntxiv hauv kev tsim dav hlau.
Thermal stability: Cov pa roj carbon fiber ntau ua kom pom kev zoo thermal stability, ua rau lawv tiv taus qhov kub thiab txias yam tsis muaj kev puas tsuaj loj. Cov yam ntxwv no yog qhov tseem ceeb hauv kev siv aerospace, vim tias cov khoom yuav raug tshav kub thaum lub sijhawm ya davhlau.
Txo cov nqi kho mob: Lub durability thiab corrosion kuj ntawm carbon fiber composites pab txo tus nqi kho rau aerospace Cheebtsam ntawm lawv tag nrho lifecycle, ncua kev txij nkawm thiab txhim khu kev ntseeg.
