文章摘要
旋转下套管装置卡瓦牙结构优化
Optimization of the slip tooth structure of the rotary casing running device
投稿时间:2023-10-09  修订日期:2023-10-09
DOI:
中文关键词: 旋转下套管装置  卡瓦牙  有限元分析  优化设计
英文关键词: Rotating casing running device  Slip teeth  Finite element analysis  optimal design
基金项目:石油天然气装备教育部重点实验室全资助项目(OGEHH202002);重庆科技学院科技创新项目“旋转下套管装置夹持系统理论研究与结构优化”(YKJCX2220303);
作者单位邮编
谢帅* 重庆科技学院 401331
罗乙凯 重庆科技学院 401331
朱祥龙 重庆科技学院 401331
邹鑫 重庆科技学院 401331
曾国恩 重庆科技学院 401331
彭佳辉 重庆科技学院 401331
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中文摘要:
      旋转下套管装置卡瓦牙设计不合理,易造成卡瓦牙磨损或损伤套管问题。针对上述问题,建立卡瓦夹持套管数值计算模型,研究卡瓦牙型和卡瓦牙结构参数对力学性能的影响规律。结果表明:不同卡瓦牙型作用下,卡瓦板与套管的最大应力位于两端,且平顶牙型最为合理。此外,接触压力、卡瓦牙应力和套管应力随着卡瓦牙前角α、后角β和齿距S的增加而增加,随着齿顶宽W的增加而减小。最后以接触压力、卡瓦牙应力和套管应力为优化目标,以卡瓦牙结构参数为设计变量,应用正交实验法优化出的卡瓦牙结构参数为卡瓦牙前角α=20°、后角β=45°、齿高H=1.2mm和齿距S=3mm。本研究结果可为旋转下套管装置及其卡瓦牙设计提供参考。
英文摘要:
      The design of the rotary casing running device''s slip teeth is unreasonable, which can easily cause wear or damage to the casing. To address the above issues, a numerical calculation model for the clamping sleeve of the slip is established to study the influence of slip tooth shape and slip tooth structural parameters on mechanical properties. The results show that under the action of different slip tooth shapes, the maximum stress of the slip plate and sleeve is located at both ends, and the flat top tooth shape is the most reasonable. In addition, the contact pressure, slip tooth stress, and sleeve stress vary with the front angle of the slip tooth α、 Posterior horn β It increases with the increase of tooth pitch S and decreases with the increase of tooth top width W. Finally, with contact pressure, slip tooth stress, and casing stress as optimization objectives, and slip tooth structural parameters as design variables, the optimized slip tooth structural parameters using orthogonal experimental method are the slip tooth front angle α= 20 °, rear angle β= 45 °, tooth height H=1.2mm, and tooth pitch S=3mm. The results of this study can provide reference for the design of rotary casing running device and its slip teeth.
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