摘要
基于非线性有限元分析方法,以隔水导管螺纹接头为研究对象,对承载工况下不同标准齿形螺纹接头的抗拉能力进行分析,并采用改变螺纹锥度和改变螺纹螺距的方法对螺纹进行了优化。算例表明:隔水导管螺纹接头在拉伸载荷作用下,各螺纹牙应力分布不均匀,每个螺纹牙根部应力最大,且第1个螺纹牙根部存在严重的应力集中现象。通过改变螺纹的锥度和螺距,能够使隔水导管螺纹接头应力分布更加均匀,提高隔水导管螺纹接头的连接质量。
The tensile load analysis was threads,and linear f each th ging th the optimization of thread by element software ABAQUS. performed for riser connection with changing thread pitch and thread cone Case analysis showed that the stress read tooth were different,and there is stress concentration near the root read pitch and thread cone angle could make stress widely distributed, connection reliability. different profile angle using non- distributions on of thread. Chan- and improve the
出处
《石油矿场机械》
2012年第12期17-20,共4页
Oil Field Equipment
基金
国家科技重大专项课题"深水钻井隔水管作业管理及安全评价技术研究"(2011ZX05026-001-05)
