| 牙轮钻头主要结构参数的优化设计 |
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| 引用本文： | 吴泽兵,侯季康.牙轮钻头主要结构参数的优化设计[J].西南石油大学学报（自然科学版）,1997,19(3):70-72. |
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| 作者姓名： | 吴泽兵 侯季康 |
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| 作者单位： | (西南石油学院机械工程系,四川 南充 637001) |
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| 摘 要： | 根据牙轮钻头与岩石相互作用机理,引出了平面模型和空间模型的概念。平面模型反映牙齿在井底的刮切面积,空间模型反映了牙齿破碎岩石的体积。基于这两种模型分别建立了优化目标函数,并采用多目标优化方法对两种型号钻头(XHP2b和XHP3s)的主要结构参数进行了优化计算,结果表明对XHP2b钻头的优化效果比较显著。通过用优化后的结构参数重新设计制造出的钻头的现场应用情况很好,机械钻速提高10%-20%左右。
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| 关 键 词： | 牙轮钻头 结构 模型 优化设计 |
| 收稿时间： | 1996-12-11 |
Optimizing Design of Essential Structural Parameters of Cone Bits |
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| Wu Ze-bing,Hou Ji-kang.Optimizing Design of Essential Structural Parameters of Cone Bits[J].Journal of Southwest Petroleum University(Seience & Technology Edition),1997,19(3):70-72. |
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| Authors: | Wu Ze-bing Hou Ji-kang |
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| Institution: | (Dept. of Mechanical Engineering, SWPI, Sichuan, 637001) |
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| Abstract: | Based on the mechanism of interaction between the bit and rock, the concepts of plane model and spatial one are introduced. The plane model reflects the scraped area by teeth, while the spatial model reflects volume of broken rock by teeth. Two objective functions of optimization are built up and optimal computation to two kinds of bits (ZHP2b and ZHP3a) is carried out using multi-objective optimization method, considering the essential struc-tural parameters as optimal parameters. The results show that the effectiveness on XHP2b is greater than that on XHP3a. The rate of penetration of optimal bits is increased by 10~20 percent. |
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| Keywords: | Cone bits Structure Model Optimizing design |
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