| 挠性抗回旋PDC钻头的有限元分析 |
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| 引用本文： | 华剑,周思柱,黄天成. 挠性抗回旋PDC钻头的有限元分析[J]. 石油矿场机械, 2007, 36(1): 39-41 |
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| 作者姓名： | 华剑 周思柱 黄天成 |
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| 作者单位： | 长江大学,机械工程学院,湖北,荆州,434023 |
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| 摘 要： | 回旋是导致PDC钻头早期失效的主要原因，介绍了一种基于挠性钻头的构想设计的抗回旋PDC钻头，阐述了其结构和抗回旋原理。对挠性钻头的公、母接头进行了有限元应力分析，说明了模型建立、网格划分以及约束和载荷施加过程中所采用的方法和关键技术。有限元分析结果表明挠性钻头的强度满足要求。
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| 关 键 词： | 挠性钻头 公接头 母接头 有限元分析 |
| 文章编号： | 1001-3482(2007)01-0039-03 |
| 修稿时间： | 2006-05-29 |
Finite Element Analysis of Flexible Anti-Whirl PDC Bit |
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| HUA Jian,ZHOU Si-zhu,HUANG Tian-cheng. Finite Element Analysis of Flexible Anti-Whirl PDC Bit[J]. Oil Field Equipment, 2007, 36(1): 39-41 |
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| Authors: | HUA Jian ZHOU Si-zhu HUANG Tian-cheng |
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| Affiliation: | School of Mechanical Engineering, Changjiang University, Jingzhou 434023 ,China |
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| Abstract: | Bit whirl is a major cause of PDC bit early failure. A kind of anti-whirl PDC bit designed based on the idea of flexible bit is introduced in this paper and the structure and working principle of it is expatiated. Male joint and female joint are main parts of the flexible bit, finite element stress analysis of which is done. The methods and key technologies of modeling, meshing and restriction imposing and loading are described. The results of finite element analysis show that the strength of flexible joint is enough. |
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| Keywords: | flexible bits male joint female joints finite element analysis |
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