The crankshaft system installed with component which has enormous moment of inertia that leads to lower frequence of forced torsional vibration for crankshaft.
由于曲轴系统装有转动惯量很大的部件，所以曲轴扭转振动的自振频率比较低，往往会在工作转速范围内产生共振。
The important placement and components were chosen to study the forced torsional vibration in steady conditions to further understand the torsional vibration of the components on the power driveline.
为了进一步掌握动力传动系各个部件的扭振情况，选取动力传动系中的重要位置和部件进行了稳定工况下的强迫扭振特性分析。
In the previous research on torsional. vibration of diesel engine shafting system, an equivalent system must be defined before calculating free vibration and forced vibration.
对柴油机轴系扭振的研究，以往是先建立扭振当量系统，然后进行自由振动与强制振动计算。
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