3D Periodic Foundation-based Structural Vibration Isolation
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3D Periodic Foundation-based Structural Vibration Isolation
3D Periodic Foundation-based Structural Vibration Isolation

Author: Z.B. Cheng, Y.Q. Yan, Farn-Yuh Menq, Y.L. Mo, H.J. Xiang, Z.F. Shi and Kenneth H. Stokoe, II | Size: 938 MB | Format: PDF | Quality: Unspecified | Publisher: Proceedings of the World Congress on Engineering 2013 Vol III, WCE 2013, July 3 - 5, 2013, London, U.K. | Year: 2013 | pages: 06

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Guided by the recent advances in solid-state
physics research, a 3D periodic foundation-based structural
vibration isolation is studied. Using construction materials,
concrete, rubber and steel, the three-component periodic
foundation is developed. Frequency band gaps for the specimens
are found to be in low-frequency region (<20Hz). A parametric
study is also conducted to illustrate the influences of the
geometrical and material parameters on the frequency band
gaps. Based on the frequency band gaps analysis, numerical
simulations are performed to verify the efficiency of the periodic
foundation. Harmonic analysis results show periodic foundation
can reduce vibrations in the frequency band gap. Further, a
transient analysis shows that 3D periodic foundations can also
isolate seismic wave effectively.

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