Springs, with the subsequent axial and lateral vibration problems, are eliminat ed.

从而取消了弹簧部件并消除了弹簧部件所带来的轴向和径向振动问题.

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The drill fluid in the drill stem increases the inertia of lateral vibration.

钻柱内的钻井液增加了钻柱横向振动的惯性质量.

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

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.

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From the calculating results, the main frequency of rail and sleeper lateral vibration is low.

从计算结果可知, 轨道结构的横向振动频率较低,且钢轨与轨枕的横向振动主频相接近.

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At present, axial load and excited origin of drilling string lateral vibration is usually neglected.

目前对钻柱横向振动的研究基本上忽略了横向振动的激发来源和轴向力的存在.

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