Research on Operation Principle and Kinematics of Torsional Vibration Generator
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摘要: 针对某些地区地层研磨性强,可钻性差,机械钻速低的技术难点,提出了一种扭转振动发生器。通过对发生器结构和工作原理的分析,建立其运动学模型,推导出液压锤的碰撞周期、转动角速度、转动角位移的表达式;结合算例参数得到液压锤的碰撞周期、转动角速度、转动角位移随时间的变化关系,以及入口流量、入口压强对其三者的影响;最后,通过室内实验验证了计算方法的可靠性与准确性。结果表明:液压锤碰撞周期与入口压强成反比,与入口流量成正比;其角速度及角位移随入口流量的增大而减小,随入口压强的增大而增大。Abstract: Aiming at the technical difficulties of strong abrasion resistance, poor drillability and low rate of penetration of the stratum, a torsional vibration generator is designed. According to the structure and operating principle of the torsional vibration generator, its kinematics and mathematical models are established. The expression of the collision period, angular velocity, angular displacement of the hydraulic hammer are derived, and the variation relationships of these parameters with respect to time are obtained with the aid of numerical examples, and the effect of the inlet pressure and inlet flow on them are also achieved. The accuracy and reliability of the calculation method are verified by experiments. The results show that its collision period increases with the inlet flow and decreases with the inlet pressure. With the increasing of inlet pressure and the decreasing of inlet flow, the angular velocity and angular displacement of the hydraulic hammer are increased.
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Key words:
- angular velocity /
- calculations /
- computational geometry /
- collision /
- design
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[1] 吕苗荣,沈诗刚.钻柱黏滑振动动力学研究[J].西南石油大学学报(自然科学版),2014,36(6):150-159 Lü M R, Shen S G. The simulation and analysis of drillstring stick-slip vibration[J]. Journal of Southwest Petroleum University (Science & Technology Edition), 2014,36(6):150-159(in Chinese) [2] Buckland A, Jackson L, Ilich T, et al. Drilling speaking valves to promote phonation in tracheostomy-dependent children[J]. The Laryngoscope, 2012,122(10):2316-2322 [3] Saldivar B, Mondié S, Seuret A. Suppressing stick-slip oscillations in oilwell drillstrings[M]//Seuret A, Özbay H, Bonnet C, et al. Low-Complexity Controllers for Time-Delay Systems. Switzerland:Springer, 2014:189-203 [4] Liu X B, Vlajic N, Long X H, et al. Nonlinear motions of a flexible rotor with a drill bit:stick-slip and delay effects[J]. Nonlinear Dynamics, 2013,72(1-2):61-77 [5] 艾池,王银龙,李国庆,等.井下叶栅偏心块质量优化技术研究[J].科学技术与工程,2013,13(10):1671-1815 Ai C, Wang Y L, Li G Q, et al. A study on the optimizing technology of the quality of downhole cascade eccentric block[J]. Science Technology and Engineering, 2013,13(10):1671-1815(in Chinese) [6] 张晓东,朱晓凤,何石,等.钻柱系统粘滑振动稳定性分析及减振方法探讨[J].钻采工艺,2015,38(2):89-90,94 Zhang X D, Zhu X F, He S, et al. Stability analysis of stick slip vibration and discussion of vibration reduction method of drill string system[J]. Drilling & Production Technology, 2015,38(2):89-90,94(in Chinese) [7] Amundsen D S, Scheibert J, Thogersen K, et al. 1D model of precursors to frictional stick-slip motion allowing for robust comparison with experiments[J]. Tribology Letters, 2012,45(2):357-369 [8] 黄滚,尹光志.冲击地压粘滑失稳的混沌特性[J].重庆大学学报,2009,32(6):633-637,662 Huang G, Yin G Z. Chaotic behavior of stick slip in rock bursts[J]. Journal of Chongqing University, 2009,32(6):633-637,662(in Chinese) [9] 张有强,丁旺才.两自由度干摩擦振动系统粘滑运动分析[J].振动与冲击,2013,32(7):184-187 Zhang Y Q, Ding W C. Stick-slip vibration analysis for a 2-DOF dry friction vibration system[J]. Journal of Vibration and Shock, 2013,32(7):184-187(in Chinese) [10] 祝效华,汤历平,童华.高频扭转冲击钻进的减振与提速机理研究[J].振动与冲击,2012,31(20):75-78,109 Zhu X H, Tang L P, Dong H. Rock breaking mechanism of a high frequency torsional impact drilling[J]. Journal of Vibration and Shock, 2012,31(20):75-78,109(in Chinese) [11] 黄根炉,韩志勇.大位移井钻柱粘滑振动机理分析及减振研究[J].石油钻探技术,2001,29(2):4-6 Huang G L, Han Z Y. Mechanism analysis on torsional stick-slip vibration of drill string in extended reach well and some ways to its suppression[J]. Petroleum Drilling Techniques, 2001,29(2):4-6(in Chinese) [12] Khulief Y A, Al-Sulaiman F A, Bashmal S. Vibration analysis of drillstrings with self-excited stick-slip oscillations[J]. Journal of Sound and Vibration, 2007,299(3):540-558 [13] 李玮,何选蓬,闫铁,等.近钻头扭转冲击器破岩机理及应用[J].石油钻采工艺,2014,36(5):1-4 Li W, He X P, Yan T, et al. Rock fragmentation mechanism and application of near-bit torsion impacter[J]. Oil Drilling & Production Technology, 2014,36(5):1-4(in Chinese) [14] 周银锋,马建敏,王忠民.旋转摩擦诱发粘滑振动特性分析[J].噪声与振动控制,2005,25(5):10-12 Zhou Y F, Ma J M, Wang Z M. Analysis of the stick-slip vibration induced by rotating friction[J]. Noise and Vibration Control, 2005,25(5):10-12(in Chinese) [15] Kamel J M, Yigit A S. Modeling and analysis of stick-slip and bit bounce in oil well drillstrings equipped with drag bits[J]. Journal of Sound Vibration, 2014,333(25):6885-6899 [16] Khulief Y A, Al-Sulaiman F A, Bashmal S. Vibration analysis of drillstrings with self-excited stick-slip oscillations[J]. Journal of Sound and Vibration, 2007,299(3):540-558
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