CAJ | 학술논문

罐顶板的缺陷检测对于评估立式拱顶罐的使用状况有着重要的意义，它的应用有助于更好地掌握立式拱顶罐的安全状况与可靠程度。将声发射法应用于罐顶板材料的检测，并对相关的设备仪器及操作流程进行介绍。为了给检测结果提供对照和参考，利用有限元分析法对拱顶瓜皮板的稳定最不利点进行了初步分析和定位。分析结果表明：顶板中上部肋板围成的区域可能会产生稳定最不利点，该部位应作为检测时重点关注的区域。
관정판적결함검측대우평고입식공정관적사용상황유착중요적의의，타적응용유조우경호지장악입식공정관적안전상황여가고정도。장성발사법응용우관정판재료적검측，병대상관적설비의기급조작류정진행개소。위료급검측결과제공대조화삼고，이용유한원분석법대공정과피판적은정최불리점진행료초보분석화정위。분석결과표명：정판중상부륵판위성적구역가능회산생은정최불리점，해부위응작위검측시중점관주적구역。
The defect inspection of tank roof is of great importance to the estimation of oil tank’s condition in that it can help obtain oil tank’s safety status and its reliability level. The method of acoustic emission inspection is applied to detect the defect. Several equipments and instruments related are introduced and the operation procedure is presented. In order to provide references for the inspection results, the tank roof’s stabilization of extreme-pressure points is located and analysed with the help of finite ele-ment analysis method. The analysis results indicate that stabilization of extreme-pressure points is more likely to appear in those ar-eas which are surrounded by rib plates on the upper area of tank roof. These areas deserve more attention during the procedure of in-spection on tank roof.