Optimal design of a tuned viscous mass damper enhanced outrigger system
Dawei Li, Xianghui Guo
Abstract. A damped outrigger system is presented to improve the seismic performance of the conventional outrigger system by incorporating a tuned viscous mass damper (TVMD) between the core tube and the perimeter columns. An optimal framework of the design parameters of the TVMD is developed, which includes mode superposition technique and fixed-point method. A simplified cantilever beam with distributed parameters represents the deformation characteristic of the core tube in the outrigger system. Mode superposition decouples the continuous system using a general single-degree-of-freedom system. Then, the fixed-point method is proposed to determine the optimal design parameters of the TVMD by minimizing the H_2- norm of the frequency response function of the displacement response of the outrigger system. A numerical study demonstrates that the designed TVMD effectively mitigates the roof displacement.
Keywords
Damped Outrigger System, Tuned Viscous Mass Damper, Fixed-Point Method, Mode Superposition
Published online 3/25/2025, 9 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Dawei Li, Xianghui Guo, Optimal design of a tuned viscous mass damper enhanced outrigger system, Materials Research Proceedings, Vol. 50, pp 163-171, 2025
DOI: https://doi.org/10.21741/9781644903513-20
The article was published as article 20 of the book Structural Health Monitoring
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
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