Cov txheej txheem kuaj

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Cov txheej txheem kuaj

Txoj Kev A1 thiab Txoj Kev A2 - Rov ua dua kev vibration test:

Cov qauv kuaj tau muab tso rau ntawm qhov chaw xeem raws li txoj haujlwm thauj mus los ib txwm, thiab cov cuab yeej txuas txuas yog siv los txwv cov qauv los ntawm kev poob ntawm lub dav hlau kuaj thiab tiv thaiv lub viav vias ntau dhau ntawm cov qauv, tab sis txoj kev txav ntsug ntawm cov qauv tsis tuaj yeem. raug txwv. Cov cuab yeej txwv tau hloov kho kom cov kab rov tav periphery ntawm cov qauv kuaj muaj qhov chaw tsuas yog li 10 hli (0.4 hauv).

Pib lub platform vibration nrog ib zaus ntawm 2 Hz, nce qhov kev xeem zaus tsis tu ncua, thiab rov ua dua lub platform sim ntawm qee txoj haujlwm ntawm cov qauv xeem. Txhawm rau kom ntseeg tau tias cov qauv ntsuas tau raug ua kom tsis tu ncua kev vibration, thaum tus qauv dhia tawm ntawm lub platform sim, ib daim ntawm 1.6 hli (1/26 hauv) tuab thiab 50 hli dav (2. 0 hauv) dav siv los ntxig cov qauv rau hauv cov qauv. Ntxig 100 hli (4.0 nyob rau hauv thiab ntev), cov spacers tuaj yeem txav tau raws qhov ntev ntawm qhov chaw hauv qab ntawm cov qauv. Siv lub gasket uas ntev txaus los xyuas kom meej tias tus neeg teb xov tooj muaj kev nyab xeeb thiab saib xyuas kom lub gasket tiaj tus ntawm qhov chaw kuaj.

Ntawm qhov kev vibration zaus no, kev soj ntsuam tas mus li mus txog lub sijhawm yuav tsum tau ua rau tus qauv lossis lub sijhawm ua ntej lossis ib qho kev txiav txim siab ntawm qhov txhab raug pom tshwm sim. Nres qhov kev sim tam sim ntawd thiab xyuas seb puas muaj kev puas tsuaj.

Yog tias lub thawv xa khoom tuaj yeem muab tso rau hauv lwm cov lus qhia thaum thauj, sim tsawg kawg ib lub thawv rau txhua qhov kev taw qhia.

Nco tseg: Yog tias tsis tas yuav tsum tau kuaj lub voj voog, nws raug nquahu kom sim rau ib teev.

Tshawb xyuas lub thawv xa khoom thiab cov khoom siv sab hauv thiab sau cov txiaj ntsig kev puas tsuaj lossis kev puas tsuaj uas tshwm sim thaum lub sijhawm kuaj.

Txoj Kev B - Resonance Test rau Ib Lub Thawv Xa Khoom Ib Leeg:

Raws li cov qauv, txoj haujlwm kev thauj mus los ib txwm muaj kev nyab xeeb ruaj khov ntawm qhov ntsuas qhov ntsuas kom qhov xav tau kev co tuaj yeem xa mus rau sab nraud ntawm cov qauv kuaj. Muab lub ntsuas ntsuas rau saum lossis hauv qab ntawm lub txee kom ze li sai tau rau cov qauv ntsuas (tab sis nco ntsoov tias nws yuav tsis raug mob los ntawm tus qauv), lossis qhov chaw uas tsim lub rooj nrog cov ntaub ntawv sawv cev. Saib xyuas qhov amplitude thiab zaus ua tiav los ntawm lub rooj kom paub meej tias cov kev xav tau raug tsim tawm.

Ib txoj hauv kev tuaj yeem siv los txiav txim siab qhov zaus resonant: sinusoidal sweep input lossis ib qho kev tawm tswv yim.

Resonance Search nrog Sinusoidal Sweep - Kho qhov ntsuas kev vibration kom ua tiav qhov yuav tsum tau ua kom nrawm nrawm nrawm (0 mus rau qhov siab tshaj) kom txog rau thaum qhov xav tau ntau zaus. Ntawm qhov sib piv ntawm logarithmic ntawm 0.5 rau 1.0 teeb liab cov kauj ruam ib feeb, pib ntawm qhov qis tshaj zaus, cheb mus rau qhov txwv zaus thiab rov qab mus rau qhov tsawg zaus. Rov ua lub voj voog no ob zaug los sau cov lus teb ntawm tus qauv. Cov resonant zaus no tuaj yeem saib xyuas hauv ntau txoj hauv kev, suav nrog kev hnov ​​​​lus (cov lus teb tau zoo), pom kev (stroboscopic lossis video system), lossis accelerometer.

Lus Cim: Cov lus teb zaus sib txawv ntawm qhov txwv cheb sab sauv thiab qhov qis qis qis, thiab qhov tseeb cov lus teb zaus ntawm cov qauv xeem yuav nyob nruab nrab ntawm ob zaus (sab sauv resonance zaus thiab qis dua resonance zaus).

Nco tseg: Yog tias qhov ntsuas qhov tseeb tsis tas yuav tsum tau, qhov nrawm ntawm {{0}}.25g mus rau 0.5g's (2.45m / s2 txog 4.9m / s2) amplitude (ntawm 0 mus rau ncov) , yog li ntawd qhov ntau zaus nce mus txog 3 txog 100HZ, yog txaus stimulus los tsim cov lus teb.

Resonant tshawb nrog ib qho kev tawm tswv yim - piv rau sinusoidal sweeps, siv ib qho kev tawm tswv yim kom paub meej tias cov khoom lag luam resonant zaus sai dua (synchronize qhov tseeb zaus ntawm cov qauv kuaj nrog cov tswv yim dav dav). Saib txoj kev xeem D3580. Txhawm rau siv txoj kev no, koj yuav tsum tau nruab ib lub ntsuas ntsuas accelerometer ntawm cov qauv ntsuas los saib xyuas cov lus teb ntau zaus. Accelerometers kuj tau nruab rau ntawm lub rooj ntev zaum sim kom paub meej tias cov lus tsa suab ntawm lub rooj yog cov tswv yim spectrum ntawm PSD xav tau. Ib lub sensor tau muab tso rau hauv cov kev taw qhia ntawm lub rooj vibration kom paub meej tias qhov resonance zaus ntawm cov khoom.

Qhov tsawg zaus ntau zaus yog 3 txog 100 Hz nrog rau qhov tsawg kawg nkaus lub zog spectral ceev ntawm 0.005 g2/Hz (0.049 (m/s2) 2/Hz) lossis ib qho kev lees paub tsim nyog spectrum. Nco ntsoov tias qhov ntau yam no tsis sawv cev rau ib puag ncig tiag tiag, tab sis tsuas yog siv los lees paub lub ntuj zaus ntawm cov qauv raws li qhov yuav tsum tau ua ntau zaus uas feem ntau tshwm sim thaum caij tsheb thauj mus los. Pib lub vibration system thiab PSD qib yuav tsum tsis txhob tshaj qhov yuav tsum tau muaj thaum pib. Pib qhov kev xeem ntawm qhov tsawg kawg nkaus ntawm 6 dB hauv qab ntawm tag nrho cov theem, tom qab ntawd maj mam ntxiv ib lossis ntau cov kauj ruam ua ke kom ncav cuag tag nrho cov kev xeem. Tso cai rau kev tswj xyuas kom ruaj khov txaus tuaj yeem piav qhia txog qhov ruaj khov spectral duab thiab qib. Sib piv cov tswv yim thiab cov lus teb. Sau cov lus teb resonance ntawm tus qauv xeem.

Nco tseg: Nws paub zoo tias qee cov cuab yeej ntsuas kev vibration uas twb muaj lawm muaj qhov tsawg zaus thiab cov khoom siv ntxiv yuav tsum tau ua kom tau raws li qhov xav tau ntau zaus.

Lub sijhawm ntev yuav tsum tau (tso rau qhov siab tshaj plaws ntawm plaub lub zog resonance teb) yog khaws cia rau txhua qhov kev ntsuas resonant zaus, lossis kom txog thaum lub thawv ntim khoom puas lawm. Kho qhov vibration zaus kom tswj tau resonance yog tias xav tau.

Lus Cim: Yog tias tsis muaj lub sijhawm yuav tsum tau ua, nws feem ntau khaws cia rau yam tsawg kawg ntawm 15 feeb.

Rov ua cov kauj ruam nyob rau hauv cov kev taw qhia uas cov qauv yuav muab tso rau hauv lub simulation.

Tshawb xyuas lub thawv xa khoom thiab cov khoom siv sab hauv thiab sau cov txiaj ntsig kev puas tsuaj lossis kev puas tsuaj uas tshwm sim thaum lub sijhawm kuaj.

Method C-stacking, resonance testing of composite or vertical stacking:

Ib qho qauv kuaj nrog tus qauv loj sib xyaw lossis pallet pawg tau muab tso rau ntawm lub rooj sib tw xeem thiab pawg qhov siab yog sib npaug rau qhov siab tiag tiag. Nws yog qhov zoo tshaj rau kev sim cov khoom thauj uas tau siv rau kev thauj mus los ib txwm, xws li cov yeeb yaj kiab ncab, strips, stacking qauv, thiab lwm yam. Yog hais tias ntsug stacking yog siv thaum lub sij hawm kev thauj mus los, sim lub resonance ntawm lub freight box tus neeg ntsug kab loads. Cov cuab yeej txwv tsis pub ntxiv tawm ntawm lub rooj zaum sim hauv kab rov tav kom tiv thaiv tus qauv los ntawm kev poob thiab viav vias ntau dhau. Cov cuab yeej txwv tau hloov kho kom cov kab rov tav periphery ntawm cov qauv kuaj muaj qhov chaw tsuas yog li 10 hli (0.4 hauv). Muab lub ntsuas ntsuas rau ntawm lub rooj zaum ntsuas kom ze li sai tau rau cov qauv ntsuas (tab sis nco ntsoov tias nws tsis kov)

Ib txoj hauv kev tuaj yeem siv los txiav txim siab qhov taw tes resonance: sinusoidal sweep input lossis ib qho kev tawm tswv yim.

Resonance tshawb nrhiav nrog lub sinusoidal cheb - kho qhov kev vibration xeem ntsuas los tsim qhov yuav tsum tau acceleration amplitude (0 mus rau lub ncov) kom txog rau thaum lub xav tau ntau zaus mus txog. Ntawm qhov sib piv ntawm logarithmic ntawm 0.5 rau 1.0 teeb liab cov kauj ruam ib feeb, pib ntawm qhov qis tshaj zaus, cheb mus rau qhov txwv zaus thiab rov qab mus rau qhov tsawg zaus. Rov ua lub voj voog no ob zaug los sau tag nrho cov lus teb ntawm tus qauv. Cov resonant zaus no tuaj yeem saib xyuas hauv ntau txoj hauv kev, suav nrog kev hnov ​​​​lus (cov lus teb tau hnov), pom kev (stroboscopic lossis video system), lossis accelerometer ntawm qhov siab tshaj plaws ntawm cov qauv stacking load.

Nco tseg: Muaj ntau cov qauv thauj khoom ib zaug uas yuav teb ua phem.

Nco tseg: Cov lus teb zaus sib txawv ntawm qhov txwv cheb sab sauv thiab qhov txwv qis qis, thiab qhov tseeb zaus ntawm cov qauv kuaj yuav nyob nruab nrab ntawm ob zaus (sab saum toj txwv resonance zaus thiab qis dua resonance zaus).

Nco tseg: Yog tias qhov ntsuas qhov tseeb tsis tas yuav tsum tau, nws raug nquahu kom siv qhov amplitude ntawm {{0}}.25g (2.5m / s 2) (los ntawm 0 mus rau ncov) kom ua tiav ntau zaus ntawm 2 mus rau 100HZ.

Resonant search with any input - piv nrog sinusoidal cheb, paub meej tias qhov resonance zaus ntawm cov khoom nrog pallet stack, composite load los yog ntsug pawg load nrog ib qho kev tawm tswv yim (synchronize cov qauv kuaj nrog lub broadband input kom synchronize tag nrho cov reality) zaus). Saib txoj kev xeem D3580. Txhawm rau siv txoj kev no, yuav tsum muaj accelerometer nyob rau sab saum toj ntawm qhov siab tshaj plaws ntawm cov qauv ntsuas los soj ntsuam cov lus teb ntau zaus. Lub sensor no yuav tsum tau muab tso rau sab nraum tus qauv, txheeb ze rau cov ntaub ntawv resonance ntawm lub sab hauv sab hauv pob kom ntes cov resonant zaus ntawm lub load, thiab lub accelerometer yuav tsum tau muab ntsia rau ntawm lub rooj ntev zaum xeem kom paub tseeb tias cov lus tsa suab ntawm lub rooj yog cov tswv yim. spectrum ntawm PSD xav tau. .

Qhov tsawg zaus ntau zaus yog 3 txog 100 Hz nrog rau qhov tsawg kawg nkaus lub zog spectral ceev ntawm 0.005 g2/Hz (0.049 (m/s2) 2/Hz) lossis ib qho kev lees paub tsim nyog spectrum. Nco ntsoov tias qhov ntau yam no tsis sawv cev rau ib puag ncig tiag tiag, nws tsuas yog siv los lees paub qhov xwm txheej ntawm cov khoom thauj khoom thauj khoom raws li qhov yuav tsum tau ua ntau zaus uas feem ntau tshwm sim thaum thauj. Pib lub vibration system thiab PSD qib yuav tsum tsis txhob tshaj qhov yuav tsum tau muaj thaum pib. Pib qhov kev xeem ntawm qhov tsawg kawg nkaus ntawm 6 dB hauv qab ntawm tag nrho cov theem, tom qab ntawd maj mam ntxiv ib lossis ntau cov kauj ruam ua ke kom ncav cuag tag nrho cov kev xeem. Tso cai rau kev tswj xyuas kom ruaj khov txaus tuaj yeem piav qhia txog qhov ruaj khov spectral duab thiab qib. Sib piv cov tswv yim thiab cov lus teb. Sau cov lus teb resonance ntawm tus qauv xeem.

Nyob rau hauv cov kauj ruam, txhua lub sij hawm lub resonance zaus yog ntsuas, lub sij hawm ntev yuav tsum tau (tso rau qhov siab tshaj plaws ntawm plaub lub zog resonance teb) yog tswj, los yog kom txog thaum lub thawv shipping puas. Kho qhov vibration zaus kom tswj tau resonance yog tias xav tau.

Lus Cim: Yog tias tsis muaj lub sijhawm ntev, nws feem ntau khaws cia li 15 feeb.

Tshawb xyuas lub thawv xa khoom thiab cov khoom siv sab hauv thiab sau cov txiaj ntsig kev puas tsuaj lossis kev puas tsuaj uas tshwm sim thaum lub sijhawm kuaj.