豆包阻尼器的减振特性研究

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 1999, Vol. 20 ›› Issue (2): 168-170.

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STUDY ON THE DAMPING CHARACTERISTICS OF BEAN BAG DAMPER

Li Wei¹, Zhu Demao¹, Hu Xuanli², Huang Xieqing²

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

Abstract

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

CLC Number:

O323
TB53

Li Wei;Zhu Demao;Hu Xuanli;Huang Xieqing. STUDY ON THE DAMPING CHARACTERISTICS OF BEAN BAG DAMPER[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 1999, 20(2): 168-170.

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STUDY ON THE DAMPING CHARACTERISTICS OF BEAN BAG DAMPER

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