A Passive Damping Device for Structures in Low-frequency Oscillation
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A Passive Damping Device for Structures in Low-frequency Oscillation

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The Structural Engineer
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The Structural Engineer, Volume 57, Issue 3, 1979

Date published

N/A

Citation

The Structural Engineer, Volume 57, Issue 3, 1979

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Standard: £10 + VAT
Members/Subscribers: Free

Oscillation of a structure induced by vortex excitation is likely to occur at frequencies quite different from the natural frequency of the structure because of the locking-in phenomenon. Effective damping by means of a passive mechanical system requires that the system be capable of operating over a large range of forcing frequencies under the exciting forces which may vary in direction and intensity. A damping device based on the principle of energy dissipation by impact has been developed for this purpose. It has a nonlinear response to displacements, and is suitable for operation at relatively low frequencies. Selected experimental results are
presented in this paper.

H.Y. Wong

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PDF
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The Institution of Structural Engineers

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Issue 3

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