15CrMo实体膨胀管最优锥角有限元分析  

Finite Element Analysis of Optimal Angle of Entity Expansion Pipe of 15CrMo

作　　者：姚津[1] 何继宁[1] 任钦贵[1] 宋开红[1] 

机构地区：[1]河北工业大学,天津300130

出　　处：《石油矿场机械》2014年第1期25-29,共5页Oil Field Equipment

摘　　要：利用有限元分析软件,根据弹塑性有限元接触问题的相关理论建立了可膨胀管膨胀过程的力学模型。对壁厚6mm的ф108mm管进行膨胀过程的计算机模拟,着重研究在不同膨胀率下,膨胀锥角与锥体完成胀管所需的液压力的变化关系;确定不同膨胀率下所需的液压力最小的锥角值,即获得最优的锥角;研究了最优锥角下膨胀管的力学性能,通过参数优化设置,为现场应用提供理论依据。By utilizing the finite element ansys software and basing on the related theory of elastic-plastic finite element contact problem, the mechanics model of the expansion pipe in an expanding process was constructed. By simulating the expansion process of the 108 pip whose wall thickness is 6 ram,the relationship between the fluid pressure was studied,which is needed to complete the expansion and the different expansion ratio and expansive cone angle. It confirmed the best angle in different expanding inflation and researched mechanical properties of expansion pipe at the opti-mal angle. And it will provide an important guide to the field application.

关 键 词：膨胀锥锥角 膨胀液压力 数值模拟 最优锥角 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]