圆锥管螺纹过盈联接螺纹牙应力和变形计算方法  

Calculation Method of Stress and Deformation of Interference Fit Conic Thread Connection

作　　者：李强[1] 陈守俊[1] 张毅 王建文[1] 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3期452-457,共6页Journal of East China University of Science and Technology

摘　　要：以圆锥管螺纹为研究对象,在弹性力学的基础上,结合组合厚壁圆筒理论,对圆锥管螺纹齿面过盈配合进行了理论分析,建立了一种新的解析模型,得到了圆锥管螺纹接触齿面上的径向接触应力和变形公式。并以API-P110SΦ88.9 mm圆锥套管螺纹为例,对螺纹牙的径向变形和径向应力进行了实例计算和有限元分析,通过将解析计算结果与有限元计算结果进行比较分析,证明所建立的计算模型具有较好的准确性,为精确计算圆锥管螺纹过盈联接的应力、变形提供了一种新的方法。Based on elasticity,the radial stress distribution and deformation on the teeth were studied for the conic thread connection with interference by thick-cylinder theory,and a new calculation model was established through the theoretical analysis.A calculating example for API-P110S Φ 88.9 mm oil tube indicates that this method is practicable.Compared with the result obtained by the finite element analysis,the model estabilished has high accuracy.The model deprived in this paper offers a new way for the calculation of stress and deformation of the conic thread connection.

关 键 词：圆锥管螺纹 径向应力 径向变形 有限元分析 

分 类 号：TH131.7[机械工程—机械制造及自动化]