| 基于梁-梁接触理论的管柱屈曲分析 |
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| 引用本文： | 王尊策,曹梦雨,徐德奎,温后珍,徐艳,陈明,吕凤霞.基于梁-梁接触理论的管柱屈曲分析[J].中国石油大学学报(自然科学版),2017(2):132-138. |
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| 作者姓名： | 王尊策 曹梦雨 徐德奎 温后珍 徐艳 陈明 吕凤霞 |
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| 作者单位： | 东北石油大学机械科学与工程学院,黑龙江大庆 163318,东北石油大学机械科学与工程学院,黑龙江大庆 163318,北京工业大学机械工程与应用电子技术学院,北京 100124,东北石油大学机械科学与工程学院,黑龙江大庆 163318,东北石油大学机械科学与工程学院,黑龙江大庆 163318,东北石油大学机械科学与工程学院,黑龙江大庆 163318,常州大学机械工程学院,江苏常州 213016 |
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| 基金项目： | 国家青年科学基金项目(11402051)；东北石油大学研究生创新科研项目(YJSCX2016-021 NEPU) |
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| 摘 要： | 为探究长直管柱在井下复杂工况下的屈曲形式,进行基于梁-梁接触理论的管柱屈曲分析研究。利用梁-梁接触理论对考虑剪切弯曲变形的梁进行离散化,使用管-管接触单元建立管柱变截面摩擦接触有限元模型,并用此方法针对分层采油井实际井况建立管柱有限元分析模型。结果表明,分层采油管柱在井下复杂的受力环境下会发生不等距复合屈曲,在考虑摩擦的情况下管柱的屈曲构型不再是标准的正弦线或是螺旋线构型,并利用磁定位数据验证了计算结果的可靠性。
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| 关 键 词： | 管柱 管-管接触单元 梁-梁接触理论 摩擦接触 复合屈曲 磁定位 井下工具 |
| 收稿时间： | 2016/3/12 0:00:00 |
Post-buckling analysis of tubes based on beam-to-beam contact theory |
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| Institution: | Mechanical Scientific and Engineering College of Northeast Petroleum University, Daqing 163318,China,Mechanical Scientific and Engineering College of Northeast Petroleum University, Daqing 163318,China,College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology,Beijing 100124,China,Mechanical Scientific and Engineering College of Northeast Petroleum University, Daqing 163318,China,Mechanical Scientific and Engineering College of Northeast Petroleum University, Daqing 163318,China,Mechanical Scientific and Engineering College of Northeast Petroleum University, Daqing 163318,China and Mechanical Engineering College of Changzhou University,Changzhou 213016,China |
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| Abstract: | To explore the buckling form of the straight long tube under complicated conditions, the buckling analysis based on the beam-to-beam contact theory is carried out. The beam is discretized according to the beam-to-beam contact theory in consideration of shear and bending deformation. The finite element method(FEM) model considering the variable section and frictional contact is built, where the tube-to-tube contact element is used. By using this method, the FEM model concerned with the layered production ''s actual working conditions is presented. The result turns out that the tube ''s buckling form under the complex condition, is multiple and not equidistant. Moreover, the buckling form with friction is not the standard sine type or the spiral configuration, and the reliability of these results has been proved by the magnetic positioning data. |
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| Keywords: | tube tube-to-tube contact element beam-to-beam contact theory frictional contact multiple buckling magnetic positioning subsurface tool |
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