O-ring compression tuaj yeem xam raws li hauv qab no:
Ua ntej, txiav txim siab qhov dawb seem txoj kab uas hla (mm) ntawm O-ring thiab sau nws ua.
Tom qab ntawd, txiav txim siab qhov tseeb sab hauv txoj kab uas hla (mm) ntawm O-ring thiab sau nws d1.
Lub piston zawj hauv qab txoj kab uas hla lossis pas nrig txoj kab uas hla (mm) tuaj yeem ntsuas thiab cim d1.
Xam qhov compression S ntawm O-ring raws li hauv qab no: S=ua - (D1-d1) / 2.
Cov compression ratio K tuaj yeem xam los ntawm cov qauv hauv qab no: K=S / ua * 100 feem pua .
Daim ntawv sealing yog txawv, nws qhov nro thiab compression tus nqi yog loj dua, lub dynamic foob yog me me, tshwj xeeb tshaj yog cov rotary foob, tsis tsuas yog tsis xav tau tus nqi ntawm nro, tab sis lub puab txoj kab uas hla ntawm lub O-ring yog loj dua lub ncej. txoj kab uas hla, thiab compression yog me me, uas tuaj yeem tiv thaiv kev sib hloov ntawm cov cua kub ceev, kom lub O-ring contraction, kom cov kev sib txhuam yog intensified thiab puas.
O-ring kev sib txhuam F yog xam raws li cov qauv hauv qab no: F=u * Pr, qhov twg u yog qhov sib txhuam coefficient thiab Pr yog O-ring deformation siab.
Nyob rau hauv qhov xwm txheej tsis muaj qhov siab lossis micro-siab, qhov sib txhuam coefficient u muaj feem xyuam rau cov roj, feem ntau 0.3 ~ 0.5; Tsis muaj roj, kev sib txhuam qhuav thaum 1 ~ 1.2.
O-ring puab txoj kab uas hla w thiab thickness raws li qhov tseeb ntsuas, compression piv ε tsim yuav tsum tau 8 ~ 30 feem pua, cov ntaub ntawv hardness Hs tau raws li cov khoom yam ntxwv.
Tus nqi ntawm Pr tuaj yeem xam los ntawm cov qauv hauv qab no: Pr=4.8 * 10-7 * w * ε * Hs * π * (d plus w).
Thov nco ntsoov tias cov ntaub ntawv no tsuas yog muab cov ntsiab lus ntawm O-ring compression xam. Hauv kev siv cov tswv yim, koj yuav tsum xa mus rau cov ntawv qhia muaj feem thiab cov lus qhia hauv daim ntawv thov kom ntxaws rau ntau txoj hauv kev suav thiab xaiv qhov ntsuas. Nyob rau tib lub sijhawm, raws li qhov xwm txheej tiag tiag thiab qhov xav tau, nws yuav tsum tau ua kom tsim nyog hloov kho thiab hloov kho kom ntseeg tau tias qhov tseeb thiab qhov cuam tshuam ntawm daim ntawv thov.
Cov hauv qab no yuav tsum tau txiav txim siab nyob rau hauv kev xam cov compression npaum li cas ntawm round-trip O-ring:
1. O-ring txoj kab uas hla thiab seem txoj kab uas hla: O-ring txoj kab uas hla thiab seem txoj kab uas hla yog ib qho tseem ceeb cuam tshuam rau compression npaum li cas. Feem ntau, qhov loj ntawm txoj kab uas hla thiab seem kab ntawm O-ring, qhov me dua qhov compression.
2. Cov khoom siv O-ring: Cov khoom siv ntawm O-ring kuj tseem cuam tshuam rau qhov compression. Cov ntaub ntawv sib txawv ntawm O-rings muaj qhov sib txawv elasticity thiab hardness, yog li tus nqi ntawm compression yuav txawv.
3. Cov duab thiab qhov loj ntawm lub sealing nto: cov duab thiab qhov loj ntawm lub sealing nto kuj yuav cuam tshuam qhov compression npaum li cas ntawm O-ring. Yog hais tias lub sealing nto yog tiaj, lub compression ntawm O-ring yuav kuj me me; Yog hais tias lub sealing nto yog ib tug nkhaus nto, lub compression ntawm O-ring yuav kuj loj.
4. Siab: Lub siab ntawm O-ring kuj yog ib qho tseem ceeb uas cuam tshuam rau tus nqi ntawm compression. Qhov siab dua, qhov ntau dua qhov compression ntawm O-ring.
Kev sib xyaw ua ke ntawm cov xwm txheej saum toj no yuav tsum tau txiav txim siab thaum xam qhov compression tus nqi ntawm kev ncig mus ncig O-ring. Feem ntau hais lus, qhov compression ntawm O-rings tuaj yeem xam los ntawm cov kev sim los yog cov lej simulation. Txoj kev sim yuav tsum ua cov qauv thiab ua cov kev sim, uas yog qhov nyuaj, tab sis cov txiaj ntsig yog qhov tseeb dua. Tus lej simulation txoj kev yog siv lub computer simulate qhov kev nyuaj siab ntawm O-ring thiab xam cov compression npaum li cas, uas yog yooj yim thiab ceev, tab sis tej zaum yuav muaj ib co yuam kev nyob rau hauv cov kev tshwm sim.
