Kev Vibration Resistance Test rau LED Teeb: Cov txheej txheem thiab cov qauv
|
1. Vim li cas kev vibration kuaj teeb meem rau LED teeb 2. Cov qauv ntsuas kev vibration tseem ceeb 3. Kev sim & cov cuab yeej siv 4. Txhais cov qhab nia xeem 5. Yuav ua li cas Manufacturers txhim khu kev co |
Taw qhia
LED teeb tau dav siv hauv kev lag luam, tsheb, thiab kev siv sab nraum zoov uas lawv feem ntau raug kev co los ntawm cov tshuab, tsheb, lossis ib puag ncig. Txhawm rau kom ntseeg tau thiab kav ntev, cov tuam txhab ua haujlwmkev vibration resistance testsimulate tiag -lub ntiaj teb no tej yam kev mob. Kab lus no tshawb nrhiav:
Vim li cas kev vibration kuaj yog qhov tseem ceeb rau LED teeb
Cov qauv xeem thiab cov txheej txheem
Cov cuab yeej siv thiab cov txheej txheem siv hauv kev sim
Yuav txhais li cas rau kev xeem
1. Vim li cas kev vibration kuaj teeb meem rau LED teeb
Kev vibration tuaj yeem ua rau:
Kev sib txuas hluav taws xob xoob→ Flickering lossis tsis ua haujlwm
Cov pob qij txha tawg→ Lub zog poob qis
Ua puas LED chips lossis lo ntsiab muag→ Txo qhov ci
Structural qaug zog→ tawg mounts lossis vaj tse
Kev lag luam xav tau kev co-cov LEDs tiv taus:
✔ Automotive(headlights, sab hauv teeb pom kev zoo)
✔ Aviation thiab aerospace(cockpit/aircraft teeb pom kev zoo)
✔ Tubrog nkoj(shipboard teeb pom kev zoo)
✔ Muaj tshuab(CNC, khoom siv hnyav)
✔ Railways & tsheb thauj mus los
2. Cov qauv ntsuas kev vibration tseem ceeb
Kev lag luam sib txawv ua raws cov qauv tshwj xeeb los xyuas kom meej LED durability:
A. International Standards
IEC 60068-2-6 (Sinusoidal Vibration Test)
Simulates rov ua dua kev co (xws li, lub cav lossis lub cev muaj zog ua haujlwm).
Kev ntsuas ntau zaus (piv txwv li, 5–500 Hz) ntawm tus nqi ruaj khov lossis cheb tus nqi.
IEC 60068-2-64 (Random Vibration Test)
Mimics unpredictable vibrations (xws li, txoj kev pob, turbulence).
Ntsuas kev ua tau zoo nyob rau hauv ntau- kev taw qhia kev ntxhov siab.
MIL -STD-810G (Military Standard)
Siv rau kev tiv thaiv thiab kev siv aerospace.
Xws li kev ntsuam xyuas kev poob siab thiab kev sib haum xeeb.
B. Kev lag luam-Cov qauv tshwj xeeb
SAE J575 (Automotive Teeb pom kev zoo)
TS EN 50155 Kev Siv Hluav Taws Xob
DNV-GL (Marine & Offshore Teeb pom kev zoo)
3. Kev sim & cov cuab yeej siv
A. Sinusoidal Vibration Testing
Txheej txheem:
LED teeb yog mounted rau ibkev vibration shaker.
Kev tswj sine yoj yog siv rau ntawm kev nce zaus.
Qhov kev sim ua haujlwm rau cov xuab moos / hnub (piv txwv li, 5-200 Hz rau 2 teev ib axis).
Lub hom phiaj:Tshawb xyuas cov ntsiab lus resonance qhov kev puas tsuaj feem ntau.
B. Random Vibration Test
Txheej txheem:
Lub teeb raug rau ntau-axis vibrations.
Accelerometers ntsuas cov lus teb ntawm ntau zaus.
Lub sijhawm ntsuas nws txawv (piv txwv li, 1-4 teev ib axis).
Lub hom phiaj:Simulates tiag tiag-lub ntiaj teb chaotic vibrations (piv txwv li, tawm- tsav tsheb).
C. Kev kuaj kev poob siab (Ntxiv ntxiv)
Tso pov tseg(piv txwv li, 1m rau pob zeb)
Mechanical impact tests(piv txwv li, 50G shock pulses)
Cov cuab yeej siv:
Electrodynamic Shakers(rau kev tswj kom meej meej)
Hydraulic Shakers(rau siab - kev sim quab yuam)
Data Acquisition Systems(los sau cov vibrations thiab tsis ua haujlwm)
4. Txhais cov qhab nia xeem
Tom qab kuaj, engineers xyuas rau:
Hluav taws xob txuas ntxiv(tsis muaj flickering lossis tsis muaj zog)
Lub cev kev ncaj ncees(tsis muaj kab nrib pleb, xoob screws, los yog detached Cheebtsam)
Optical kev ua tau zoo(zoo ib yam brightness, tsis muaj lens puas)
Pass/Fail Criteria:
Pass:Tsis muaj kev ua haujlwm lossis kev puas tsuaj tom qab kev sim.
Ua tsis tiav:Flickering, tawg solder pob qij txha, los yog vaj tse tawg.
5. Yuav ua li cas Manufacturers txhim khu kev co
Txhawm rau txhim khu kev ruaj ntseg, LED teeb yuav suav nrog:
Flexible PCB mounts(absorbs vibrations)
Potting compounds(tiv thaiv circuitry los ntawm kev poob siab)
Cov tsev nyob ruaj khov(Aluminium alloy vs yas)
Anti-vibration screws & gaskets
Xaus
Kev ntsuas kev vibration kuj ua kom cov teeb ci LED tiv taus cov xwm txheej hnyav hauv tsheb, kev lag luam, thiab kev siv dav hlau. Los ntawm kev ua rawsIEC, MIL-STD, lossis SAE cov qauv, manufacturers validate kev ntseeg tau ua ntej deployment. Raws li cov thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis thev naus laus zis © Copyright 2020|Cov txheej txheem kev sim yuav txuas ntxiv mus kom tau raws li qhov xav tau ntau dua.
Cov ntsiab lus tseem ceeb:
✅ Kev ntsuas vibration simulate tiag -kev ntxhov siab hauv ntiaj teb (sinusoidal, random, shock).
✅ Cov qauv sib txawv ntawm kev lag luam (xws li tsheb, tub rog, tubrog nkoj).
✅ Kev xeem dhau yuav tsum tsis muaj hluav taws xob / tshuab degradation.
✅ Cov qauv tsim muaj zog (potting, hlau vaj tse) txhim kho lub neej ntev.
Rau kev lag luam cia siab rau LED teeb pom kev zoo, xaivkev vibration{0}}cov khoom pov thawjtxo qis kev pheej hmoo ua tsis tiav thiab ua kom muaj kev nyab xeeb hauv cov ntawv thov tseem ceeb.
