| 大尺寸偏差油管螺纹接头弹塑性接触特性研究 |
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| 引用本文： | 林腾蛟,蒋仁科,李润方,林元华.大尺寸偏差油管螺纹接头弹塑性接触特性研究[J].机械科学与技术(西安),2007,26(8):992-995. |
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| 作者姓名： | 林腾蛟 蒋仁科 李润方 林元华 |
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| 作者单位： | [1]重庆大学机械传动国家重点实验室,重庆400044 [2]西南石油大学油气藏地质及开发工程国家重点实验室,成都610500 |
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| 摘 要： | 开发了带尺寸参数偏差的油管螺纹接头参数化有限元自动建模程序,考虑材料非线性和接触表面非线性,应用弹塑性接触有限元法对存在尺寸偏差的油管螺纹接头进行了应力应变分析。并以27/8TBG油管螺纹接头为例,给出了油管在预紧及拉伸载荷工况下接头的应力应变云图及螺牙面的接触应力曲线,分析了外螺纹参数偏差变化时接头应力应变的变化规律。
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| 关 键 词： | 螺纹接头 尺寸偏差 弹塑性接触分析 有限元法 |
| 文章编号： | 1003-8728（2007）08-0992-04 |
| 修稿时间： | 2006-08-27 |
Study of the Elastoplastic Contact Characteristics of Threaded Joints of Oil Pipes with Large Dimensional Deviations |
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| Lin Tengjiao,Jiang Renke,Li Runfang,Lin Yuanhua.Study of the Elastoplastic Contact Characteristics of Threaded Joints of Oil Pipes with Large Dimensional Deviations[J].Mechanical Science and Technology,2007,26(8):992-995. |
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| Authors: | Lin Tengjiao Jiang Renke Li Runfang Lin Yuanhua |
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| Affiliation: | 1 State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044 ; 2 Southwestern Petroleum University, Chengdu 610500 |
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| Abstract: | We develop an automatic modeling program to establish the parameterized finite element model of threaded joints of oil pipes with dimensional deviations. Taking into consideration the material nonlinearity and the contact surface nonlinearity, we analyze the stress and strain of the threaded joints using the elastoplastic contact finite element method. We give the stress and strain contours and the contact stress curves of 27/8TBG threaded joints as an example when they are under pre-stress and tensile force. We also analyze the change of the stress and strain of the threaded joints with parameter deviations of outer threads. |
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| Keywords: | threaded joint dimensional deviation elastoplastic contact analysis finite element method |
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