航空学报 > 1999, Vol. 20 Issue (2): 168-170

豆包阻尼器的减振特性研究

李伟1, 朱德懋1, 胡选利2, 黄协清2   

  1. 1. 南京航空航天大学振动工程研究所, 南京, 210016;2. 西安交通大学振动与噪声控制工程研究所, 西安, 710049
  • 收稿日期:1998-05-20 修回日期:1998-08-25 出版日期:1999-04-25 发布日期:1999-04-25

STUDY ON THE DAMPING CHARACTERISTICS OF BEAN BAG DAMPER

Li Wei1, Zhu Demao1, Hu Xuanli2, Huang Xieqing2   

  1. 1. Institute of Vibration Engineering Research, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016;2. Institute of Vibration and Noise Control Engineering, Xi'an Jiaotong U niversity, Xi′an, 710049
  • Received:1998-05-20 Revised:1998-08-25 Online:1999-04-25 Published:1999-04-25

摘要:

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。

关键词: 柔性约束, 阻尼器, 颗粒介质

Abstract:

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.

Key words: flexible const raint, damper, granular media

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