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.

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本文提出了一种具有非线性刚度的弹簧一质量模型，用于计算内燃机轴系的扭转—纵向耦合振动。

This paper presents a new mathematical model for calculating the coupled torsional-axial vibration with non-linear stiffness for a lumped spring-mass shaft system of internal combustion engine.

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本文研究了高速柴油机轴系的扭转—纵向耦合振动的机理和计算方法。

This paper studied the principle and method of calculation for the coupled torsional axial vibration of the crankshaft for a high speed vehicle diesel engine.

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