第七代钻井平台典型撑杆结构极限强度研究

Research on ultimate strength of struct of seventh generation drilling platform

基于压缩载荷作用下极限强度模型试验相似原理,以第七代钻井平台撑杆结构为研究对象,开展撑杆结构极限强度试验模型设计,并完成模型试验。通过开展线性状态结构模型试验,释放结构焊接残余应力,进而开展极限状态模型试验,获得撑杆结构应力分布、失效模式以及极限载荷等。通过本文的研究,为第七代钻井平台撑杆结构优化设计提供支撑。

Based on the similarity principle of ultimate strength model test under compression load,this paper takes the strut structure of the seventh generation drilling platform as the research object,carries out the ultimate strength test model design of the strut structure,and completes the model test.By carrying out the linear state structure model test,the residual stress of structure welding is released,and then the limit state model test is carried out to obtain the stress distribution,failure mode and limit load of strut structure.Through the research of this paper,it provides support for the optimization design of the strut structure of the seventh generation drilling platform.