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.

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钻柱振动现象在钻井施工中是非常突出和明显的现象。

It is a very obvious phenomenon of the drill string vibrating in the drilling.

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文章针对钻井工程中钻柱横向振动的实际情况，建立力学模型。

This paper analyzed the practical situation of drilling string lateral vibration during drilling, established mechanical model.

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