Cov nyhuv ntawm purlin qhov sib txawv hloov ntawm khoov tsis kam ntawm lub hnub ci vaj huam sib luag

Cov nyhuv ntawm purlin qhov sib txawv hloov ntawm khoov tsis kam ntawm lub hnub ci vaj huam sib luag

Yog tias peb siv lub hnub ci vaj huam sib luag (qhov ntev thiab dav sib npaug) txhawb nqa los ntawm cov ncej hlau ntawm tag nrho plaub sab, thiab siv qee hom kev thauj khoom, qhov no yuav ua rau lub hnub vaj huam sib luag tsis sib haum. Tam sim no, cia peb khaws cov kev sib txuas zoo ib yam thiab ua kom ntev ntawm daim ntawv, tom qab ntawd siv cov khoom thauj kom tau txais cov deflection zoo ib yam li yav dhau los. Peb pom tias, mus txog rau ib qho ntev asymptotic phaj, lub load yuav tsum ua kom tiav tib deflection txo qis.

Thaum lub phaj asymptotic ntev dhau lawm, nws tsis tas yuav hloov cov qib load kom ncav cuag tus thawj deflection theem. Yog li ntawd, peb tuaj yeem txiav txim siab tias dhau ntawm qhov ntev ntawm lub hnub ci vaj huam sib luag, cov purlins txhawb nqa daim ntawv raws nws qhov dav tsis ua rau lub zog flexural ntawm daim ntawv thiab yog li tsis tsim nyog. Hauv cov xwm txheej no, peb tuaj yeem hais tias cov hnub ci vaj huam sib luag no ua tau zoo li lawv tau txuas nrog kev tsim kho hauv ib qho kev teeb tsa ntawm ntug / ntug.