压力容器
壓力容器
압력용기
2013年
8期
64-68
,共5页
大开孔%管道弯矩%有限元%屈曲%临界载荷
大開孔%管道彎矩%有限元%屈麯%臨界載荷
대개공%관도만구%유한원%굴곡%림계재하
large opening%pipe bending moment%finite element%buckling%critical load
应用ANSYS有限元软件对减压塔大开孔结构建立力学模型，并采用特征值、几何非线性以及几何/材料双非线性屈曲分析技术对其在管道弯矩和外压共同作用下的稳定性进行分析。在此基础上，利用ANSYS软件提供的参数化设计语言APDL编写筒体开孔结构稳定性全自动化分析程序，对其在不同弯矩组合下的临界载荷进行分析比较后，最终确定结构的临界外压，并按照JB 4732-1995《钢制压力容器---分析设计标准》对其进行稳定性评定。
應用ANSYS有限元軟件對減壓塔大開孔結構建立力學模型，併採用特徵值、幾何非線性以及幾何/材料雙非線性屈麯分析技術對其在管道彎矩和外壓共同作用下的穩定性進行分析。在此基礎上，利用ANSYS軟件提供的參數化設計語言APDL編寫筒體開孔結構穩定性全自動化分析程序，對其在不同彎矩組閤下的臨界載荷進行分析比較後，最終確定結構的臨界外壓，併按照JB 4732-1995《鋼製壓力容器---分析設計標準》對其進行穩定性評定。
응용ANSYS유한원연건대감압탑대개공결구건립역학모형，병채용특정치、궤하비선성이급궤하/재료쌍비선성굴곡분석기술대기재관도만구화외압공동작용하적은정성진행분석。재차기출상，이용ANSYS연건제공적삼수화설계어언APDL편사통체개공결구은정성전자동화분석정서，대기재불동만구조합하적림계재하진행분석비교후，최종학정결구적림계외압，병안조JB 4732-1995《강제압력용기---분석설계표준》대기진행은정성평정。
The mechanical model of the vacuum tower with large opening had been made by means of the finite element of ANSYS structure analysis software ,and the stability of it subjected to external press and pipe bending moment was studied by the methods of eigenvalue ,geometry nonlinear and geometry -mate-rial nonlinear buckling analysis .Based on it,a commonly used automatic analysis program written by AN-SYS parametric design language for cylinder with opening was performed .Through the comparison of the results with different bending moment ,the critical external pressure of the structure was obtained .Further-more,the stability had been evaluated according to analysis standard JB 4732-1995“Steel Pressure Ves-sel---Design by Analysis”.
