摘要
不压井作业装置关键部件极易发生塑性变形,导致结构发生破坏或者影响液压缸上提下放。因此,开展不压井作业装置关键部件安全性评价,对带压作业装置优化设计具有重要的工程应用价值。考虑不压井装置的结构及受力特点,分别建立了不压井装置关键部件液压缸连接盘、三角架和承载结构三维有限元分析模型,利用有限元法对各关键部件进行了力学分析,采用应力分类法并引入压力容器分析设计标准对不压井装置进行了安全评价,结果表明:在设计载荷下,不压井装置安全可靠。此安全评价方法为复杂结构的强度评定提供有效的评价方法。
The key components of no killing well device are extremely prone to plastic deformation, and the plastic deformation will result in the structural damage of the key components or affect the lifting and releasing movement of the hydraulie cylinder of the device. Therefore, the safety evaluation of the key components of no well-king operation device is of great applieation significance to the optimization design of the devices operating with pressure. The 3D finite element analysis models for the key components of the no well-king operation device, the connecting plate, the tripod and load bearing structure of hydraulic eylinder, are established respectively according to the structural and mechanical characteristics of the no well-king operation device. The mechanical analysis of the key components are carried out using the finite element method, and the safety of the no well-killing device is evaluated by means of stress classification method and the pressure vessel analysis design standards. The resuhs show that： under the designed load, the no well-killing device is safe and reliable. This safety evaluation method is effective to the strength evaluation of complex structures.
出处
《石油工业技术监督》
2013年第10期25-28,共4页
Technology Supervision in Petroleum Industry
关键词
不压井作业装置
关键部件
安全评价
有限元
no well-killing device
key component
safety evaluation
finite element
作者简介
罗敏（1968-），女，教授，主要从事杆管柱计算力学研究工作。
