摘要
为对导管架整体吊装安全性进行数值模拟分析,采用有限元法。利用ANSYS Workbench对导管架进行整体建模。模型中全部采用壳单元进行模拟。有限元网格划分过程中对不同的板厚和位置设置不同的偏移方向。利用力质量单元向导管架模型赋值,利用重力加速度施加场力。导管架起吊的吊点采用远程点的方式进行模拟,远程点与吊点之间的控制方程简化钢丝绳的建模。对吊点等关键部位进行细化网格处理。在导管架吊装受力后处理时,检查结构的整体应力情况,并重点检查吊点的应力情况。检查远程点反力并与导管架重量进行比对。检查导管架整体位移避免发生翻转。
In order to carry on the numerical simulation analysis to the integral hoisting safety of the jacket,the finite element method is adopted.The jacket is modeled as a whole by ANSYS WORKBENCH.All the shell elements are used in the model.In the process of finite element meshing,different offset directions are set for different plate thickness and position.The force mass unit guide pipe rack model is assigned,and the gravity acceleration is used to apply the field force.The lifting point of the jacket is simulated by the remote point,and the control equation between the remote point and the lifting point simplifies the modeling of the wire rope,so as to refine the mesh of the key parts such as the hanging point.During the post-hoisting treatment of the pipe frame,we checked the overall stress of the structure,and focused on the stress of the lifting point,checked the remote point reaction and compared it with the weight of the jacket,and checked the overall displacement of the jacket to avoid flipping.
出处
《科技创新与应用》
2024年第6期65-68,共4页
Technology Innovation and Application
关键词
壳单元
质量点
远程点
建模
有限元法
shell element
mass point
remote point
modeling
finite element method
