Paper Title:
Theoretical Research of the Active-Type Dynamic Vibration Absorbers
  Abstract

Active-type dynamic vibration absorbers (ADVA) is a kind of damping system, installed an actuators in the dynamic vibration absorbers (DVA). According to the actual needs, vibration energy of the structure is transferred to vibration absorbers actively in the process of structural vibration for the effect of external excitation. Therefore, the energy is decayed or transferred quickly and the structural vibration is controlled. If the nature frequency of additional system is the same as external excitation frequency of the original system, actuators doesn’t start and the whole system behaves the property of DVA (passive damping) .Otherwise, actuators starts, which makes the energy of original structure transfer to the vibration absorbers actively, achieving the purpose of energy consumed and vibration reduced. In this paper the concept of ADVA is proposed, and the working principle of ADVA is theoretically analyzed, furthermore the expressions of the system vibration response and active control coefficient are deduced. The curves of active control force and structure amplitude against incentive frequency are plotted respectively by examples.

  Info
Periodical
Advanced Materials Research (Volumes 255-260)
Edited by
Jingying Zhao
Pages
1820-1824
DOI
10.4028/www.scientific.net/AMR.255-260.1820
Citation
Z. L. Chen, A. L. Ma, X. L. You, L. Q. Shi, "Theoretical Research of the Active-Type Dynamic Vibration Absorbers", Advanced Materials Research, Vols. 255-260, pp. 1820-1824, 2011
Online since
May 2011
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Price
$32.00
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