| 变刚度梁柱理论及其应用 |
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| 引用本文： | 唐雪平.变刚度梁柱理论及其应用[J].力学与实践,2011,33(5):12-15. |
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| 作者姓名： | 唐雪平 |
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| 作者单位： | 中国石油集团钻井工程技术研究院 |
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| 摘 要： | 为解决井斜控制实践中存在的不等截面尺寸梁柱问题, 讨论了典型的变刚度纵横弯曲梁力学
模型. 根据变刚度梁柱变形的挠曲线微分方程和边界条件及连续条件, 得到了梁柱变形和端
部转角的解析计算式, 进而应用梁柱理论叠加原理可解决有集中力作用下的井下控制工具和
带变径稳定器的底部钻具组合(BHA)受力分析问题. 变刚度梁柱理论在BHA力学分析中得到了
成功应用, 为井下控制工具设计、钻具组合优化及井斜控制提供了理论依据.
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| 关 键 词： | 梁柱理论 变截面(变刚度) 力学分析 钻具组合 井斜控制 |
| 收稿时间： | 2011-06-08 |
NON-UNIFORM STIFFNESS BEAM-COLUMN THEORY AND ITS APPLICATION |
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| TANG Xueping.NON-UNIFORM STIFFNESS BEAM-COLUMN THEORY AND ITS APPLICATION[J].Mechanics and Engineering,2011,33(5):12-15. |
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| Authors: | TANG Xueping |
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| Institution: | TANG Xueping~(1)) (CNPC Drilling Research Institue,Beijing 100083,China) |
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| Abstract: | In order to solve the problems of non-uniform cross-section in the practice of deviation control, typtical mechanical models of non-uniform stiffness are discussed in this paper.Based on the differential equations of deflection curve and conditions of continuity and boundary of non-uniform stiffness beam-column, the analytical calculation formulae for deflection and end slope angles of beam-column are derived.Furthermore, appling beam-column theory principle of superposition,the mechanical problems of botto... |
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| Keywords: | beam-column theory non-uniform cross-section(non-uniform stiffness) mechanical analysis bottom hole assembly deviation control |
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