CAJ | 학술논문

针对外压容器加强圈因接管和预焊件而被断开的情况，借助有限元软件ANSYS，利用特征值分析、双非线性分析方法对其失稳行为进行了研究。结果表明，随着开孔率的增加，分析模型的临界压力不断降低，通过加大加强圈的尺寸并不能有效恢复筒体的承载能力；加强圈因垫板而断开时，其对筒体临界外压的影响较小。
침대외압용기가강권인접관화예한건이피단개적정황，차조유한원연건ANSYS，이용특정치분석、쌍비선성분석방법대기실은행위진행료연구。결과표명，수착개공솔적증가，분석모형적림계압력불단강저，통과가대가강권적척촌병불능유효회복통체적승재능력；가강권인점판이단개시，기대통체림계외압적영향교소。
Based on the ANSYS,the elastic-plastic constitutive relation and dual nonlinear anal-ysis method are used to analyze the critical pressure of the cylinder that had the stiffening ring broken by nozzle or pad.The results showed that with the increase of the opening ratio,the criti-cal pressure of the analysis model to continuously reduce and the critical pressure of the cylinder cannot be significantly improved by increasing the size of the stiffening ring.The critical pressure of the cylinder to reduce rarely when the stiffening ring broken by pad.