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动力消振方法通常把附加的振动质量算入车体,因而可以改变车体的振动状态。在保证车下设备与车辆底架联系的相应特征时,可以把车下设备作为附加振动质量。一般情况下附加质量以弹性的和耗散的联结与车体发生联系。如果这样选定弹性元件的刚度,使得附加质量的部分振动频率与车体弯曲振动的固有频率接近,则附加的振动系统就是有阻力的动力减振器。如果附加的振动系统具有较低的分频率(比车体的弯曲振动频率低一半或一半以上),则弹性元件仅仅
Dynamic vibration suppression methods usually calculate the additional vibration mass into the vehicle body, which can change the vibration state of the vehicle body. When assuring the appropriate characteristics of the undercarriage in contact with the undercarriage, the undercarriage can be used as an additional vibrational mass. Under normal circumstances additional quality to elastic and dissipative connection with the body. If the stiffness of the selected elastic element is chosen such that the additional mass vibrational frequency approximates the natural frequency of the body flexural vibration, the additional vibration system is a resistive dynamic damper. If the additional vibration system has a lower crossover frequency (less than half or more than the flexural vibration frequency of the body), the elastic elements are only