Dabtsi yog khoov, lub tensile thiab compressive nruj me ntsis tsom tsom thiab daim ntawv thov ntawm plaub rab sib chaws yooj ywm yoog pob khawm1

Ntsiab lus: Raws li cov kev paub txog ntawm cov khoom siv mecha tshuab thiab cov qauv xam, nruj thiab compression nyuaj ntawm plaub lub pob zeb sib xyaw tau muab los ntawm. Noj cov voj voog ncaj nqaj yooj ywm yoog pob khawm ua piv txwv li, cov qauv pob ntseg tau muab piv rau txoj kev zoo. Lub zog txhav ntawm plaub puas haum pob khawm sib piv tau muab piv thiab txheeb xyuas. Cov txiaj ntsig qhia tau tias Elliptical ncaj nqaj Composite pob khawm muaj qhov tsawg tshaj plaws khoov thiab tensile txhav. Nyob rau hauv tus qauv t-puab cov qauv, cov pob txha uas yoog raws li ntawm elliptical ncaj nqaj sib xyaw ua ke muaj peev xwm deformation muaj zog tshaj.

Saj zawg zog hinges tau siv dav hauv cov ntawv thov uas yuav tsum muaj lub siab me me thiab kev sib hloov siab, tshem tawm cov pa taug kev thiab tshuab sib txhuam. Raws li cov qauv qauv, pob khawm hloov tau yooj yim tuaj yeem raug faib ua ntau hom. Ntshai yog qhov ua tau zoo tshaj plaws rau kev ua tau zoo khawm, xav tias lawv lub peev xwm tiv thaiv kev thauj khoom sab nraud thiab lawv cov khoom siv. Qhov kev kawm no lub hom phiaj ua kom muaj zog sib npaug rau plaub sib xyaw ua ke rau plaub sib xyaw ua ke thiab sib piv lawv cov khoom nruj.

1. Tsim cov tawv nqaij tawv ncauj ua cov mis:

1.1 Cov txheej txheem muab xam los tsoo txhav txhav txhav txhav txhav txhav txhav thiab elliptical ncaj nqaj sib xyaw ua ke ntawm cov khoom siv tshuab thiab lej calclus.

1.2 Cov kab mob hnyav sib cais ua cov qauv parabolic thiab hyperbolic ncaj nqaj cab

2. Kev txheeb xyuas qhov tseeb ntawm lub zog txhav sib piv:

Cov kev sib cais nruj dua muab cov cim rau cov puag ncig ncaj nqaj pob khawm tau yog kev txheeb xyuas siv cov qauv zoo. Cov khoom siv khoov thiab tensile / compression stiffness tseem ceeb yog muab piv nrog kev ntsuas kev tshuaj xyuas kom txiav txim qhov tseeb ntawm cov mis.

3. Kev tsom xam ntawm lub ntsws ntawm plaub txoj hlua sib xyaw ua ke:

Lub zog txhav ntawm plaub puas haum pob khawm sib piv tau muab piv thiab txheeb xyuas. Raws li cov lus qhia tawv nqaij tawv ncauj tau muab cov qauv, qhov khoov thiab lub qhov tseem ceeb rau txhua lub pob khawm tau muab xam thiab piv.

4. Cov piv txwv thov:

Plaub lub pob zeb sib xyaw ua ke yog thov rau tus qauv t-zoo li tus qauv. Lub zog txhav ntawm txhua qhov kev sib koom ua tiav T-Zoo siab yog tshuaj xyuas siv cov qauv zoo. Cov txiaj ntsig qhia tau hais tias kev sib koom tes T-zoo li yoog raws ntawm elliptical ncaj nqaj composite pob khawm muaj qhov muaj zog tshaj tawm deformation muaj peev xwm.

Cov kev sib tw nruj npaum li cas cov txheej txheem rau plaub puas haum pob khawm tau raug txheeb xyuas qhov tseeb yog qhov tseeb. Lub zog txhav ntawm plaub lub pob khawm tau muab piv thiab txheeb xyuas T-zoo li cov pob khawm ncaj thiab muaj peev xwm txav zoo tshaj plaws thiab load rhiab. Txoj kev kawm no muab cov kev pom muaj nuj nqis rau kev tsim qauv thiab daim ntawv thov ntawm kev sib xyaw ua ke hinges hauv ntau thaj teb.