基于混合建模技术的大型高压釜有限元分析  

Finite Element Analysis of Large Autoclave Based on Hybrid Modeling Technology

作　　者：曲杰[1] 江楠[1] 

机构地区：[1]华南理工大学机械与汽车工程学院,广东广州510640

出　　处：《华南理工大学学报（自然科学版）》2009年第6期37-42,共6页Journal of South China University of Technology(Natural Science Edition)

基　　金：国家自然科学基金青年基金资助项目(10602018)

摘　　要：应用耦合壳单元和实体单元的混合建模技术对一压力精炼用高压釜进行有限元分析和强度分析.首先,基于高压釜的几何特点对高压釜各部件进行合理简化,应用专业前处理软件Hypermesh和大型有限元软件Abaqus建立高压釜的三维有限元模型;然后,在同时考虑弯矩、扭矩、自重、矿浆压力等载荷的基础上,对设计工况下的高压釜进行强度分析;最后,以强度分析结果为基础,依据JB 4732—1995《钢制压力容器——分析设计标准》对高压釜进行安全评定.评定结果表明:该设计完全能够满足安全要求,支座、封头、腹板、螺栓等均具有较大的安全裕度.The hybrid modeling technology of coupling shell element with solid element is used to perform the finite element analysis and strength analysis of an autoclave for refining. In the investigation, first, the components of the autoclave are reasonably simplified based on the geometric characteristics, and a 3-D finite element model of the autoclave is built using the professional pre-processing software Hypermesh and the large finite element software Abaqus. Then, the stress intensity of the autoclave under the complex loads including the bending moment, the torque moment, the deadweight, and the concentrated force, ete. , is analyzed. Based on the analysis results, the safety of the autoclave is finally assessed according to JB 4732-1995 ＂Steel Pressure Vessels--Design by Analysis＂. The results show that the designed autoclave fully meets the safety requirements for such components as the support, the head, the web plate and the bolt, etc.

关 键 词：高压釜 有限元法 强度分析 安全评定 混合建模 

分 类 号：TQ052[化学工程]