CAJ | 학술논문

应用有限元软件对钢制球罐下极板开孔结构进行了组合工况的静力分析，考虑到下极板的结构特性和承载特性，结构采用 ANSYS 12.1有限元软件提供的20节点称单元(solid 95)进行建模，施加位移约束和载荷边界条件之后，得到了其结构的应力及应变云图，并依据JB 4732-1995《钢制压力容器分析设计标准》，参照GB12337—1998《钢制球形储罐》对其进行了强度评定。计算结果表明，该球罐的下极板结构是可靠的，为后续大型结构的设计和优化提供了工程实用价值。
응용유한원연건대강제구관하겁판개공결구진행료조합공황적정력분석，고필도하겁판적결구특성화승재특성，결구채용 ANSYS 12.1유한원연건제공적20절점칭단원(solid 95)진행건모，시가위이약속화재하변계조건지후，득도료기결구적응력급응변운도，병의거JB 4732-1995《강제압력용기분석설계표준》，삼조GB12337—1998《강제구형저관》대기진행료강도평정。계산결과표명，해구관적하겁판결구시가고적，위후속대형결구적설계화우화제공료공정실용개치。
Static analysis on lower plate hole of large steel tank under two kinds of working conditions was carried out with the finite element software. Considering the structural properties and bearing characteristics of the lower plate, model of the structure was established by 20-nodes elements (SOLID 95) of ANSYS 12.1 software. After applying displacement constraints and load boundary conditions, the cloud pictures of stress and strain were obtained. And the strength assessment was carried out according to JB 4732-1995 steel pressure vessel analysis and design standards and reference GB12337-1998 steel spherical tanks. The results show that the lower plate structure of the tank is reliable.