Ese Roller-Yashizwe hejuru-Yerekana cyane Aluminium Panel Igiciro cyo Gutangiza Ibiciro bya Satelite ya LEO?

Kwiyongera kwinshi kwa megaconstellations yo hasi yisi (LEO) -kuzenguruka kuri interineti ya satelite, kugenzura ikirere, hamwe n’imiyoboro irinda orbital - byahinduye inganda zikoreshwa mu kirere ziva mu bukorikori bw’indege za bespoke zijya mu nganda nini cyane. Kubakoresha icyogajuru hamwe ninyenyeri, igiciro cyo kohereza kirahwanye nuburyo bwo kwishura imitwaro nubunini . Buri kilo yumutwaro wububiko bwakuweho bisobanurwa muburyo bukenewe bwibinyabiziga bitangirwa cyangwa kongera ubushobozi bwa elegitoroniki yinjiza amafaranga.

Urupapuro rushyizwe hejuru cyane ya aluminiyumu ( 3000 na 5000 ya aluminiyumu ya aluminiyumu yometseho ibintu byihariye byerekana cyane, fluoropolymer yo mu kirere cyangwa ibinyabuzima byo mu bwoko bwa ceramic ceramic ) itanga inzira ifatika yo kugabanya ibiciro byo kohereza icyogajuru cya LEO. Mugusimbuza ibiringiti biremereye cyane (MLI) ibiringiti, gukoresha intoki zikoresha amashanyarazi ya optique (OSRs), hamwe nuburyo bukomeye bwo gushyigikira ibyuma bifata ibyuma bikomeza, byoroheje cyane, byerekana amashanyarazi, abashakashatsi ba satelite bagera ku kuzigama kwinshi, kwihuta kwiteraniro, no kugenzura ubushyuhe bwumuriro.

Kwishyura Misa-Kuri-Igiciro Isano Itaziguye

Gutangiza ibyuma muri LEO (ubutumburuke buri hagati ya 300 km na 1,200 km) bitwara amafaranga menshi yo gutangiza ikiro. Kugabanya uburemere bwumye bwubatswe bwa kabiri, ingabo zumuriro, hamwe na pansiyo ya chassis bitanga inyungu zamafaranga ako kanya:

Ikigereranyo cya Mass-to-Orbit: Kuzigama kg 10 - kg 20 kuri satelite mu nyenyeri 500 y’icyogajuru bisobanura kilo ibihumbi n'ibihumbi mu kugabanya imizigo yo kohereza, bigatuma abashoramari bapakira satelite nyinshi mu imurikagurisha rimwe rya roketi.

Ubushyuhe bukabije muri LEO Orbit: Satelite ya LEO ihura nigihe cyihuta cyizenguruka (~ iminota 90), gusiganwa ku magare hagati yizuba ryinshi (1,361 W / m²) nubukonje bukabije bwikirere (-120 ° C kugeza + 120 ° C) inshuro 15 kumunsi.

Kugereranya: Quartz OSR / MLI Stack na Roller-Coated Reflective Aluminium

LEO Ibikoresho bya Satelite

Matrix iri hepfo igereranya ibikoresho bya satelite gakondo hejuru yubushyuhe hamwe na pome ya aluminiyumu yerekana hejuru:

Ibyingenzi Byumwuga Mubyiza byogajuru Optical Payloads

Ibibazo

Q1: Nigute paneri ya aluminiyumu isize ibiciro byohereza ibyogajuru?

. Igisubizo Gusimbuza ibyuma biremereye cyane (MLI) hamwe nikirahuri cya OSR hamwe nikirahure cya OSR hamwe namabati ya aluminiyumu yoroheje yabanje gutwikwa bigabanya ubwinshi bwumye, bikagabanya amafaranga yo kohereza kuri satelite cyangwa kwemerera satelite nyinshi guhuza imodoka imwe yohereza.

Q2: Ipitingi isize irashobora kwihanganira umwuka wa ogisijeni wa atome (AO) uboneka muri Orbit yo hasi?

Igisubizo: Yego. Ikirere cya fluoropolymer hamwe na ceramic ceramic ceramic byakozwe muburyo bwihariye kugirango birwanye iyangirika rya ogisijeni ya atome hamwe n’izuba ryinshi ry’izuba UV, bikomeza guhuza imiterere no gutekereza neza mu myaka 5 kugeza ku myaka 10 ya LEO.

Q3: Ese igipfundikizo cyacitse cyangwa kigenda iyo urupapuro rwa aluminiyumu rwunamye cyangwa rwashyizweho kashe?

Igisubizo : No. Ikibaho kirashobora gushyirwaho kashe, kugoreka, cyangwa CNC ikozwe nta guturika cyangwa gusiba.

Q4: Nigute imikorere yubushyuhe bwa aluminiyumu isize igereranya nigitambaro cya MLI gakondo?

Igisubizo: Mugihe ibiringiti bya MLI byitwaye neza muburyo butandukanye, ahantu hanini cyane, hashyizweho uruzitiro rwerekana urumuri rwinshi (aₛ <0.15, ε > 0.85) rutanga izuba ryinshi ryo hanze hamwe nimirasire yubushyuhe butaziguye muri LEO, mugihe bivanaho amafaranga menshi yumurimo hamwe nubushakashatsi bwa MLI.

Q5: Ese imbaho ​​za aluminiyumu zometse kuri roller zujuje ubuziranenge bwa NASA na ESA?

Igisubizo: Yego. Impapuro zo mu kirere zipanze aluminiyumu zipimishijwe neza kandi zemejwe hakurikijwe ibipimo bya ASTM E595 na NASA SP-R-0022A, byujuje igihombo rusange (TML <1.0%) hamwe n’ibikoresho byakusanyirijwe hamwe (CVCM <0.01%).

Umwanzuro

Kugirango ugabanye uburyo bwo kuzigama amafaranga yo kuzigama hamwe nubushyuhe bwumuriro mugihe utegura ibikoresho bya satelite ya LEO hamwe na aluminiyumu yerekana urumuri:

Hitamo Amazi meza cyane ya Marine / Aerosmace Alloys: Koresha 5052-H32 aluminium kumwanya wambere wububiko busaba imbaraga zumusaruro mwinshi hamwe n’umuvuduko ukabije w’umunaniro, cyangwa 3003-H14 kubirindiro byoroheje bya kabiri byubushyuhe hamwe nububiko bwa elegitoronike.

Mandate Ntoya ya Absorptance Thresholds (a ₛ <0.15): Saba abakora ibifuniko gutanga imirongo yerekana umurongo utwikiriye uburebure bwa 250 n - 2500nm kugirango barebe niba izuba ryinshi ryangwa.

Shimangira igenzura rya Vacuum (ASTM E595): Saba icyemezo cyihariye cya ASTM E595 cyemeza CVCM <0.01% kugirango umutekano wuzuye kuri optique yishyurwa hamwe na elegitoroniki yoroheje.