Nrog rau kev nce qib txuas ntxiv ntawm lub tsheb tsis muaj neeg tsav dav hlau (UAV) thev naus laus zis, nws cov ntawv thov tau dhau mus dhau ntawm kev lom zem, kev nkag mus rau kev lag luam nrog cov kev xav tau siab xws li kev tua duab, kev tshuaj ntsuam xyuas, thiab kev tshawb nrhiav thiab cawm. Lub hauv paus tsav tsheb quab yuam tom qab qhov kev hloov pauv no yog nyob rau hauv kev ua kom zoo dua qub ntawm kev ya davhlau ruaj khov. Tawm tsam qhov keeb kwm yav dhau los no, tshawb nrhiav yuav ua li cas txhawm rau txhim kho kev nyab xeeb ntawm kev ya davhlau los ntawm carbon fiber UAV Cheebtsam tau dhau los ua qhov tseem ceeb rau kev ua tiav cov txheej txheem thev naus laus zis.
Vim li cas qhov kev xaiv ntawm cov ntaub ntawv txiav txim qhov sib npaug ntawm cov huab cua?
Qhov kev ua tau zoo ntawm lub drone thaum lub davhlau tseem ceeb nyob ntawm kev sib txuas ntawm kev sib tw, qhov hnyav, thiab cov qauv nruj. Ib txwm yas los yog txhaj tshuaj- cov khoom siv molded yog qhov yooj yim rau cov qauv deformations xws li khoov me ntsis ntawm caj npab thaum raug kiv cua downwash thiab dynamic loads. Cov feeb deformations no xa cov suab nrov ntxiv rau lub davhlau tswj system (FC), yog li ua rau kev hloov kho lub nra ntawm PID (proportional-ib qho -derivative) tswj lub voj thiab cuam tshuam hovering stability.
Cov teeb meem saum toj no tuaj yeem txhim kho tau zoo los ntawm kev siv cov khoom siv carbon fiber drone. Carbon fiber composites muaj siab Young's modulus thiab zoo heev rigidity, ua rau lub thav duab kom tswj geometric stability nyob rau hauv siab -torque maneuvers thiab complex ua hauj lwm tej yam kev mob. Cov qauv kev ruaj ntseg no pab txo cov suab nrov nrov, ua rau muaj kev huv thiab txhim khu kev qha gyroscope thiab accelerometer outputs, yog li txhim kho lub davhlau tswj cov lus teb raug thiab tag nrho kev tuav ruaj ntseg, ua rau nws tshwj xeeb tshaj yog tsim nyog rau cov kev xav tau xws li ntev - kev khiav hauj lwm deb thiab siab - nrawm duab tau.
Table 1: Cov khoom sib piv rau cov khoom siv Drone
| Khoom Khoom | Polycarbonate / ABS yas | Aluminium Alloy (6061) | Carbon Fiber Composite |
| Qhov ntom | 1.05 – 1.20 | 2.70 | 1.55 – 1.75 |
| Tensile zog | Tsawg rau Nruab Nrab | Siab | Siab heev |
| Kev vibration Damping | Tsis zoo (Elastic) | Nruab nrab | Zoo heev (Rigid) |
| Flexural Modulus | ~ 2.3 GPa | ~ 70 GPa | ~{0}} GPa |
| Thawj Siv Case | Nkag mus -level/Toy | Cov kab nrib pleb | Hight-Kev ua tau zoo/Pro |
Lub luag haujlwm dab tsi ua cov pa roj carbon fiber ntau hauv kev txo qis kev co?
Thaum tshawb nrhiav kev siv cov khoom siv carbon fiber drone los txhim kho lub davhlau ruaj khov, cov kiv cua yog ib qho ntawm cov ntsiab lus tseem ceeb tshaj plaws. Cov khoom siv yas yas yog qhov ua rau "hnav flutter" nyob rau hauv siab -ceev tej yam kev mob: raws li qhov ceev nce, cov hniav hau tej zaum yuav hysteresis los yog elastic deformation, uas nyob rau hauv lem ua rau uneven lift tis thiab siab - zaus vibration.In sib piv, carbon fiber propellers feem ntau yog tsim los ntawm kev siv lub zog siab dua } kev ua haujlwm siab dua {{4}. pawg. Qhov txo qis ntawm cov khoom sib hloov txhais tau hais tias tsawg lub sijhawm ntawm inertia, tso cai rau lub cev muaj zog los teb sai dua thiab meej rau cov kev hloov hauv kev ceev, yog li txhim kho kev tswj tag nrho.
Hais txog cov duab zoo, siab -frequency micro- vibrations feem ntau ua rau "jelly effect" (rolling shutter distortion) hauv huab cua footage. Lub siab rigidity ntawm cov khoom siv fiber ntau tuaj yeem cuam tshuam cov kev vibrations ntawm qhov chaw, txhim kho cov duab ruaj khov. Nyob rau tib lub sijhawm, vim tias cov hniav tsis yooj yim deformed hauv kev thauj khoom, lawv cov duab aerodynamic tuaj yeem nyob ruaj khov, yog li tswj kom muaj kev txhawb nqa ntau dua - rau -txoj kev sib piv (L / D) thoob plaws hauv tag nrho cov throttle ntau thiab txhim kho kev ua haujlwm ntawm lub zog.
Tsis tas li ntawd, cov kws tshaj lij -qib carbon fiber propellers feem ntau raug siab -precision dynamic ntsuas (txog rau qib milligram) ua ntej tawm hauv lub Hoobkas, ntxiv txo qhov kev vibration thiab optimizing davhlau trajectory. Thaum siv nrog lub teeb yuag carbon fiber thav duab, nws tseem tuaj yeem tiv thaiv cov qauv resonance ntawm lub cev muaj zog txhawb nqa thiab lub kiv cua kev ua haujlwm zaus, ua rau muaj kev ruaj khov thiab ua haujlwm tau zoo.
Yuav siv cov ntaub ntawv carbon fiber ntau li cas los txhim kho cov ncej rigidity?
Lub thav duab yog lub hauv paus load-cov qauv ntawm lub drone, qhov tseem ceeb ntawm "skeleton" ntawm tag nrho cov dav hlau. Yog tias cov txheej txheem rigidity tsis txaus, txawm tias lub davhlau tswj (FC) nrog siab -cov txheej txheem precision yuav tawm tsam kom ua tiav kev tswj tus cwj pwm raug. Yog li ntawd, thaum siv cov khoom siv roj carbon fiber ntau los txhim kho lub davhlau ruaj khov, lub thav duab ply qauv thiab phaj thickness yog qhov tseem ceeb heev uas yuav tsum tau ua tib zoo xav.
Feem ntau tam sim no siab -kawg airframes siv 3K twill carbon fiber, qhov "3K" hais txog kwv yees li 3,000 monofilaments ib pob. Cov qauv weave no muab ntau qhov sib npaug ntawm cov khoom siv kho tshuab hauv lub dav hlau (X / Y cov lus qhia), uas ua rau muaj cov lus teb ruaj khov dua nyob rau hauv ntau- cov kev taw qhia quab yuam. Thaum lub sij hawm siab -ceev maneuvers los yog ntse tig, centrifugal loads tuaj yeem ua rau muaj kev cuam tshuam loj heev thiab torsional loads ntawm caj npab. Carbon fiber ntau caj npab, nrog rau lawv zoo heev torsional nruj, zoo suppress tus qauv deformation, kom ntseeg tau tias lub cev muaj zog thrust vector tseem zoo ib yam nrog cov airframe tsim, yog li txhim kho tag nrho cov davhlau stability thiab tswj precision.
Puas tuaj yeem carbon fiber tsaws iav thiab gimbals txhim khu kev ruaj ntseg sab nraud?
Davhlau stability tsis txwv rau kev saib xyuas tus cwj pwm; Nws kuj yog nyob ntawm kev sib txuas ntawm kev sib txuas ntawm UAV, nws cov nqi them, thiab ib puag ncig sab nraud. Hauv qhov kev hwm no, cov khoom siv roj carbon fiber ntau kuj ua lub luag haujlwm tseem ceeb hauv cov khoom tseem ceeb xws li tsaws iav thiab lub koob yees duab mounts.Hais txog kev tswj kev vibration, cov pa roj carbon fiber gimbal phaj tuaj yeem suav tias yog "passive filtering unit" ntawm cov txheej txheem. Txawm hais tias lub cev muaj zog ua kom muaj kev vibrations me ntsis, cov khoom siv carbon fiber ntau tuaj yeem txo qhov kev vibrations ua ntej lawv raug xa mus rau lub koob yees duab sensor, yog li txhim kho cov duab ruaj khov thiab pom tseeb.Los ntawm qhov kev xav ntawm aerodynamic, tsaws iav ua los ntawm carbon fiber tubing feem ntau muaj zog dua thiab me me hla -sectional qhov ntev. Thaum ua tau raws li cov qauv kev cai, nws txo qhov chaw pem hauv ntej, ua kom tsis muaj zog "sail effect" nyob rau hauv crosswinds, thiab txhim kho kev tuav pov hwm.
Tsis tas li ntawd, cov pa roj carbon fiber ntau nruj ua haujlwm sib koom ua ke nrog cov qauv tsim los pab tswj cov yam ntxwv ntawm aerodynamic ruaj khov, ua rau lub dav hlau tsis tshua nkag mus rau thaj chaw aerodynamically tsis ruaj khov xws li "vortex ring states" hauv cov huab cua tsis yooj yim. Cov teeb meem no feem ntau yuav tshwm sim hauv cov dav hlau uas muaj ntau dua thiab tsis txaus cov txheej txheem rigidity.
Xaus
Hauv cov ntsiab lus, kev txhim kho davhlau ruaj khov tsis yog nyob ntawm kev ua kom zoo ib yam nkaus xwb, tab sis yog los ntawm kev sib koom ua ke ntawm cov khoom siv, kev tsim qauv, thiab lub zog propulsion. Cov pa roj carbon fiber ntau, nrog nws lub zog tshwj xeeb, siab tawv, thiab cov qauv zoo sib xws, muab lub hauv paus ruaj khov dua hauv UAV thav duab, kiv cua, tsaws iav, thiab cov qauv kev txhawb nqa. Qhov no tshwm sim tsis tau tsuas yog nyob rau hauv kev txhim kho kev vibration suppression thiab cov yam ntxwv tsis kam mus deformation, tab sis kuj ncaj qha txhim khu cov ntaub ntawv zoo ntawm davhlau tswj sensors thiab qhov tseeb ntawm kev tswj teb.
Ib - nres Cosmetic Tube Factory hauv Suav teb
Peb yog cov chaw tsim khoom los ntawm Tuam Tshoj nrog 20 xyoo ntawm kev paub hauv kev lag luam cov ntaub ntawv sib xyaw. Peb tshwj xeeb hauv cov pa roj carbon fiber ntau, nplooj ntawv, thiab kev cai- zoo li tus, thiab muaj ntau ntau cov kab ntau lawm. Peb muab kev xa khoom sai. Yog tias koj tab tom nrhiav cov ntaub ntawv sib xyaw, thov hu rau peb.
