It is easy that the main resonance of a stepped drive shaft is analyzed with the equivalent shaft.

利用当量轴可方便地分析阶梯传动轴的主共振。

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Analysised the impact of temperature, soil coefficient, damping and geometric parameters of the system, etc. on the main resonance.

分析温度、地基系数、阻尼、几何参数、激励等对系统主共振的影响。

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Conclusions of that the motion stability of a fiber composite drive shaft is better and the main resonance amplitude is smaller than that of a drive shaft of steel or aluminum are produced.

得到了复合材料传动轴比钢、铝合金传动轴运动稳定性好、主共振的振幅小等结论。

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It was once thought that asteroids in the main belt occasionally collided with one another, sending fragments into orbital resonance bands where they could be affected by the gravity of Jupiter or Saturn.

ECONOMIST: Celestial mechanics: A rock in a hard place | The