Dab tsi yog shear force piv txwv?
Dab tsi yog shear force piv txwv?
Anonim

A zog shear yog a zog siv perpendicular rau ib qho chaw, nyob rau hauv kev tawm tsam rau ib qho offset zog ua yeeb yam nyob rau hauv qhov opposite direction. Thaum ib tus tswv cuab ntawm cov qauv kev ua tsis tiav los ntawm txiav , ob feem ntawm nws yog thawb indifferent cov lus qhia, rau piv txwv , thaum ib daim ntawv txiav los ntawm txiab.

Ib yam li ntawd, txhais li cas los ntawm lub zog shear?

A zog ua yeeb yam nyob rau hauv ib qho kev taw qhia thaum uas tig mus rau asurface los yog mus rau ib tug planar cross seem ntawm lub cev, piv txwv li lub siab ntawm huab cua nyob rau hauv pem hauv ntej ntawm ib tug dav hlau tis. Shearforces feem ntau ua rau txiav mob. Tsis kam ua li ntawd zog nyob rau hauv cov kua yog txuas nrog nws viscosity.

Ib yam li ntawd, shear force yog dab tsi rau cov menyuam yaus? Los ntawm Kev Kawm Cov me nyuam Shear stress yog a kev ntxhov siab xeev qhov twg cov duab ntawm cov khoom zoo li hloov (feem ntau yog "sliding" zog - torque los ntawm transversely-ua yeeb yam zog ) yam tsis muaj qhov hloov pauv tshwj xeeb.

Hais txog qhov no, txhais li cas los ntawm shear force diagram?

Shear quab yuam yog cov zog nyob rau hauv lub beamacting perpendicular rau nws longitudinal (x) axis. Shear forcediagrams tsuas yog cov phiaj xwm ntawm cov zog shear (ntawm lawv-axis) piv rau txoj hauj lwm ntawm ntau lub ntsiab lus raws kab (ntawm x-axis).

Lub zog shear raug xam li cas?

Khoov lub sijhawm yog ib txoj haujlwm ntawm lub zog x ua ddi. Yog tias zog Nws yog ib tug point load nws tsuas yog tus zog x qhov nrug [1] Yog hais tias lub zog yog distributionor kis tawm koj yuav tsum integrate lub zog thiab qhov deb [2]. Shear quab yuam yog lub luag haujlwm ntawm tag nrho zog thiab qhov chaw hla ntu [2].

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