Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8050533 | Revista Iberoamericana de Automática e Informática Industrial RIAI | 2017 | 11 Pages |
Abstract
This paper presents an adaptive tuned vibration absorber. The vibrations are absorbed by a secondary mass that is attached to the system through a new adjustable-stiffness spring, which consists of two pairs of leaf springs working in opposition. Its wide range of stiffness values (between 1Â kN m/s and 16Â kN m/s) allows the absorber to cancel vibration in the range 1.43-5.73Â Hz. A DC motor allows the spring to adjust its stiffness such that the vibration attenuation is maximum for any frequency in the mentioned interval. The vibration absorber has been included in a test bench modelling a second order system, and a set of experiments have been conducted that show a good agreement to the theoretical results for low magnitude excitations. However, as the excitation magnitude increases, the deviation from the linear behaviour impedes applying scalability and addition.
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Authors
Angel G. Gonzalez-Rodriguez, Antonio Gonzalez-Rodriguez, Jesus M. Chacon, Fernando J. Castillo,