longitudinal vibration characteristics 纵振特性 drill string longitudinal vibration 钻柱的纵向振动 coupled longitudinal-torsional vibration 纵向扭转耦合振动 ..
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实验结果表明，钻柱的纵向振动主要与转速和钻压有关。
The results show that longitudinal vibration of drill string is relative to rotary speed and weight on bit (WOB).
考虑钻柱的纵向振动、横向振动及扭转振动之间的耦合关系，建立了钻柱振动分析的综合模型。
A general model is developed to analyze drill string vibration considering the coupled relations between longitudinal vibration, lateral vibration, and twisting 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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