Yuav ua li cas kom tsis txhob muaj qhov yuam kev hauv kev tsim cov hlab ntsha siab

I. Ua raws theem

1. Kev faib tawm kom meej thiab txhais tau tias: Ua raws li TSG21 tus qauv, kom meej meej cais cov hlab ntsha siab raws li cov khoom ntawm qhov nruab nrab thiab siab ntim, tshem tawm cov misclassification thiab omissions.

2. Kev ua raws li cov qauv tam sim no: Ua raws li cov qauv tsim tshiab, zam kev hloov pauv tsis tau tso cai rau kev nyab xeeb, thiab xyuas kom txhua tus qauv tsim thiab cov kev cai ua raws li cov qauv yuav tsum tau ua.

II. Qib Xaiv cov khoom

Kev kho kom haum rau kev ua haujlwm: Xav txog qhov corrosiveness ntawm qhov nruab nrab, kev khiav hauj lwm kub, thiab siab, corrosion- cov ntaub ntawv tiv taus yog qhov tseem ceeb rau cov xov xwm corrosive. Rau qhov qis- qhov kub thiab txias, qis- qhov kub thiab txias cuam tshuam toughness raug txheeb xyuas, thiab kev siv cov khoom tsis yog- tus qauv lossis cov khoom siv tsis raug cai raug txwv nruj me ntsis.

III. Tus Qauv Tsim Qib

1. Zam lub kaum ntse ntse thiab lub kaum sab xis: Ua ntej lub taub hau elliptical thiab lwm yam kev nruj nruj. Kev qhib yuav tsum tsis txhob siab - thaj chaw muaj kev ntxhov siab thiab txhawb nqa.

2. Flange bolt qhov yuav tsum tau teem caij rau nruab nrab - ncua raws li xav tau. Cov yeeb nkab thiab kev txhawb nqa txoj haujlwm yuav tsum raug tshuaj xyuas ntau zaus kom tsis txhob muaj qhov yuam kev lossis tso tseg.

IV. Kev txheeb xyuas theem

1. Kev them nyiaj yug muaj zog, txhav, thiab ruaj khov; Kev txheeb xyuas kev ruaj ntseg yog tsom rau cov hlab ntsha sab nraud; Kev suav qaug zog yog ntxiv rau cov kev hloov pauv hloov.

2. Txhua qhov kev suav tsis suav nrog cov kev ua haujlwm tiag tiag; ruaj tsis yog siv blindly; tsim nyog kev nyab xeeb margin yog tseg nyob rau hauv cov kev tshwm sim.

V. Daim duab tso zis theem

nruj me ntsis xyuas qhov dimensioning thiab kam rau ua annotations kom tsis txhob seem inconsistencies, omissions, thiab yuam kev; cov ntaub ntawv tsim tau dhau los ua ntau-qib kos npe pov thawj los xyuas kom meej qhov sib xws ntawm cov duab kos thiab cov ntawv suav.

VI. Kev Ntsuam Xyuas Kev Nyuaj Siab

Finite element tsom xam tsis txhob blindly simplifying tus qauv; loading scenarios thiab ciam teb tej yam kev mob raug txhais kom raug; cov teebmeem ntawm thermal stress thiab cyclic stress yog tag nrho xav txog.