On the basis of the analysis of the twisting vibration of rotary sucher-rod string, a formula of calculating every harmonic vibration eigenfrequency is presented.
在对旋转抽油杆柱的扭转振动分析的基础上，给出了各阶扭转振动固有特性参数的计算式。
A general model is developed to analyze drill string vibration considering the coupled relations between longitudinal vibration, lateral vibration, and twisting vibration.
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。
After slipping of crank shaft sleeve in large Marine diesel engine, there will appear obvious vibration and twisting on the hull and shaft system.
大型船用柴油机曲轴红套滑移以后，船体和轴系分别出现明显的振动和扭转振动。
The plane curved beam theory with rectangular section is employed to explore the bending and twisting coupling vibration characteristics.
矩形截面的平面曲梁理论探索的弯曲和扭转耦合振动特性。
The plane curved beam theory with rectangular section is employed to explore the bending and twisting coupling vibration characteristics.
矩形截面的平面曲梁理论探索的弯曲和扭转耦合振动特性。
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