具有局部牙形误差的油套管螺纹联接受力分析  

Loading Analysis on Threaded Connections with Local Tooth Shape Errors

作　　者：陈守俊[1] 高连新[1] 张毅 安琦[1] 

机构地区：[1]华东理工大学机械与动力工程学院,上海200237 [2]无锡西姆莱斯石油专用管制造有限公司,江苏无锡214028

出　　处：《华东理工大学学报（自然科学版）》2010年第6期843-850,共8页Journal of East China University of Science and Technology

摘　　要：油套管螺纹加工过程中会产生局部牙形误差,这种局部牙形误差会影响油套管螺纹联接的受力和变形,进而影响螺纹联接质量。在弹性力学的基础上,根据螺纹牙的几何形状,建立新的数学模型,通过对每圈螺纹牙进行受力分析,得到能够考虑局部牙形误差的油套管轴向过盈联接时螺纹牙齿面上受力分布的计算公式。同时,以P-110S圆柱管螺纹为计算实例,研究了不同的局部牙形误差对油套管螺纹联接的受力影响,得出了一系列规律性的结论。Local tooth shape error was created in the fabrication on threaded connections.It was one of the main factors that can affect the load distribution,deformation and therefore affect the connection quality.On the basis of elastic mechanics, an analytical model was established according with the geometric parameters of thread tooth.And the load distribution on threaded connections considering local tooth shape error was developed by making a mechanics analysis on each thread tooth.Taking P-110S cylindrical pipe threaded connection as a calculating example and considering the effect of different local tooth shape errors,the effects of tooth shape errors on load distribution at threaded connections are analyzed and some regular conclusions are obtained.

关 键 词：油套管螺纹联接 局部牙形误差 理论模型 受力分布 

分 类 号：TH131.3[机械工程—机械制造及自动化] TH123.4