摆动式动力吸振器参数优化研究

Research on Optimization Parameters of A Swing Type Dynamic Vibration Absorber

为了提高空中缆车等设备的运行舒适性和安全性,降低摆振响应,设计了一种用于控制结构摆振的摆动式动力吸振器。通过建立吸振系统动力学模型,理论分析了吸振器的转动惯量、固有频率和阻尼参数对摆振结构振动响应的影响。利用定点理论,研究了吸振器的最优固有频率和最优阻尼。数值模拟了最优参数的精确性及吸振器的控制效果。研究表明此动力吸振器方案可以有效地减小摆振结构发生的强迫摆振响应。

In order to improve the operating comfort and safety of equipment such as aerial tramway and reduce swing vibration response, a swing type dynamic vibration absorber for a roiling structure was designed to control swing vibrations for a rolling structure. Based on dynamics model, theoretical analysis were done to the effects of parameters of the absorber , such as moment of inertia, natural frequency and damping, on the structure＇s swing vibration response. According to the fixed-points theory, the frequency and the damping of the vibration control system were optimized. The accuracy of the optimal parameters and the effects of the absorber were verified by numerical simulations. The results showed that the forced vibration resonance of a roiling structure can be reduced effectively by using this dynamic vibration absorber.