... torsional vibration rheometer 扭转振动流变仪 drill string torsional vibration 钻柱的扭转振动 Thus Producing Torsional Vibration 从而产生扭转振动 ...
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轻微的横向、轴向及扭转振动不影响钻井的正常作业，而钻柱的共振状态会对钻井产生严重的影响。
Light lateral and axis and torsion vibrations do not affect the normal work, but the resonance state has severity effect to drill string.
钻柱将其扭转振动传至钻机动力头，引起动力头齿轮传动系统的非线性振动。
The BHA transmits its torsional vibration to the gear system of drill power pack and brings about nonlinear vibration.
文章研究深井钻柱的振动问题，以深井钻柱为研究对象，分析研究了钻柱的纵向振动、横向振动及扭转振动。
Drill string vibration of deep Wells is studied in the article. The axial vibration, lateral vibration and torsional vibration of drill strings are analyzed.
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