Configuration cov txheej txheem ntawm sib sib zog nqus nqus qhov chaw
a. Cov duab ntawm daim duab kos yuav tsum yooj yim thiab symmetrical li sai tau.
b. Qhov loj ntawm txhua qhov ntawm daim duab kos yuav tsum tsim nyog, thiab qhov tsim ntawm flange dav thiab qhov sib sib zog nqus kos duab yuav tsum zam kom deb li deb tau. (D convex ＞ 3d, h Ntau dua lossis sib npaug rau 2d) Vim tias qhov no xav tau ntau lub sijhawm kos duab.
C. Lub vojvoog fillet ntawm cov duab kos yuav tsum tsim nyog, thiab lub vojvoog fillet yuav tsum loj npaum li qhov ua tau kom yooj yim rau kev tsim thiab txo cov sijhawm kos duab.
(1) Fillet vojvoog ntawm daim duab kos. Kev tshuaj ntsuam ceev daim ntawv hlau qauv tsev qiv ntawv
(2) Txoj hauj lwm tsim nyog rau xuas nrig ntaus qhov sib sib zog nqus los yog khoov qhov chaw.
(3) Txhawm rau tiv thaiv kev cuam tshuam thiab deformation thaum kos duab, qhov dav ntawm A thiab B yuav tsum sib npaug (symmetrical), uas yog, A =B.
(4) Kev ceev faj rau qhov loj me ntawm cov qauv kos duab ntawm cov khoom tensile
Cov khoom thickness tom qab stretching hloov vim qhov sib txawv ntawm kev ntxhov siab ntawm qhov stretching qhov chaw. Feem ntau hais lus, thawj lub thickness yog khaws cia rau hauv qab nruab nrab, cov khoom nyob rau hauv qab fillet yuav thinner, cov khoom nyob rau sab saum toj nyob ze ntawm lub flange yuav thicker, thiab cov khoom nyob rau hauv lub fillet nyob ib ncig ntawm lub rectangular stretching daim yuav thicker.
(5) Tus qauv txheej txheem rau cov khoom qhov ntev ntawm qhov tensile
Thaum tsim cov khoom tensile, qhov ntev ntawm cov khoom kos duab yuav tsum qhia meej tias qhov ntev ntawm sab nraud lossis sab hauv yuav tsum tau lav, thiab qhov ntev sab hauv thiab sab nraud tsis tuaj yeem raug cim tib lub sijhawm.
(6) Kev kos duab rau qhov ntev ntev ntawm qhov ncab
Lub vojvoog sab hauv ntawm lub concave convex arc ntawm stretch piece thiab qhov siab kam rau ua ntawm lub cylindrical stretch piece tsim nyob rau hauv ib lub sij hawm yog symmetrical deviations ntawm ob sab. Tus nqi sib txawv yog ib nrab ntawm tus nqi tseeb ntawm lub teb chaws tus qauv (GB) Qib 16 qhov tseeb kam rau ua, thiab raug cim nrog ± .