豆包阻尼器的减振特性研究

STUDY ON THE DAMPING CHARACTERISTICS OF BEAN BAG DAMPER

豆包阻尼器是一种以柔性约束下非连续颗粒介质为特征的阻尼器。研究了豆包阻尼器在不同振动条件下的减振特性，揭示了主系统激励力、阻尼、固有频率以及豆包和主系统之间的间隙等参数的变化对其减振效率的影响规律，得到了对工程应用有指导意义的结论。

Bean bag damper (BBD) is a damper featuring discontinuous granular media with flexible constraints. The damping characteristics of BBD under different vibrations conditions are studied, and the effects of the exciting force, the damping, the natural frequency of the main system and the clearance between BBD and main system on BBD′s damping efficiency are researched. It shows that BBD′s damping efficiency increases with the exciting force and the natural frequency of the main system, but it can′t increase obviously when the exciting force is large enough, and at the same time, the effects of the structural parameters of BBD on its damping efficiency are little.