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考虑横向惯性效应的钻柱纵向振动特性研究

田家林 吴纯明 杨琳 刘刚 杨志 袁长福

田家林, 吴纯明, 杨琳, 刘刚, 杨志, 袁长福. 考虑横向惯性效应的钻柱纵向振动特性研究[J]. 机械科学与技术, 2016, 35(4): 562-567. doi: 10.13433/j.cnki.1003-8728.2016.0412
引用本文: 田家林, 吴纯明, 杨琳, 刘刚, 杨志, 袁长福. 考虑横向惯性效应的钻柱纵向振动特性研究[J]. 机械科学与技术, 2016, 35(4): 562-567. doi: 10.13433/j.cnki.1003-8728.2016.0412
Tian Jialin, Wu Chunming, Yang Lin, Liu Gang, Yang Zhi, Yuan Changfu. Longitudinal Vibration of Drilling String with Transverse Inertia Effect[J]. Mechanical Science and Technology for Aerospace Engineering, 2016, 35(4): 562-567. doi: 10.13433/j.cnki.1003-8728.2016.0412
Citation: Tian Jialin, Wu Chunming, Yang Lin, Liu Gang, Yang Zhi, Yuan Changfu. Longitudinal Vibration of Drilling String with Transverse Inertia Effect[J]. Mechanical Science and Technology for Aerospace Engineering, 2016, 35(4): 562-567. doi: 10.13433/j.cnki.1003-8728.2016.0412

考虑横向惯性效应的钻柱纵向振动特性研究

doi: 10.13433/j.cnki.1003-8728.2016.0412
基金项目: 

石油天然气装备教育部重点实验室开放课题(OGE201403-05)、国家自然科学基金项目(51074202,11102173)及四川省教育厅成果转化重大培育项目(12ZZ003)资助

详细信息
    作者简介:

    田家林(1979-),副教授,博士,研究方向为井下工具、钻井动力学及理论研究,tianjialin001@gmail.com

Longitudinal Vibration of Drilling String with Transverse Inertia Effect

  • 摘要: 在理论分析的基础上,提出利用改进Rayleigh-Love杆模型,研究考虑横向惯性效应的钻柱纵向振动问题。根据钻柱实际工作情况,以钻柱整体为研究对象,假设钻柱为能被分成若干个有阻尼特性的Rayleigh-Love杆,以及钻柱内外的钻井液为性质相同的弹性层,据此建立其力学模型和振动微分方程;利用模型中的边界条件和参数之间的关系,得到钻柱底部复阻抗的求解方法,求出钻柱底部动刚度的具体表达式;并分析了不同相关参数对钻柱动刚度的影响。研究结果表明:钻柱动刚度随着频率的增大呈现振幅逐渐增大的周期性变换规律;其他相关参数保持不变,频率相同时,动刚度的绝对值与钻柱长度成反比,与钻柱横截面面积成正比;阻尼系数越大,导致井底对钻柱的作用力也越大,钻柱动刚度的振幅反而越小;钻柱的泊松比越大,随着频率的增加,动刚度的变化周期越长。
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出版历程
  • 收稿日期:  2015-09-10
  • 刊出日期:  2016-04-05

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