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Y. Choi, J. Choi, H.S. Park, "Experimental Investigation on Lateral Vibration Control of a Small-Scale Three-Story Frame Using Locally Resonant Metamaterials", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Eighteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 10, Paper 3.8, 2025,

Keywords: vibration control, locally resonant metamaterial, local resonant bandgap, modal characteristic, building structure, low-frequency vibration.

Abstract

This study experimentally investigates the effectiveness of locally resonant metamaterials (LRMs) in controlling lateral vibrations of a small-scale three-story steel frame. The LRMs were designed to target the structure’s third natural mode, and acceleration responses were measured under varying numbers of LRM units. As the number of LRM units increased, the frequency distance between the side peaks (DP) widened, indicating an enhancement in bandgap-related behaviour. Modal Assurance Criterion (MAC) analysis revealed that the side peaks maintained strong similarity to the target mode shape. The performance of the LRMs was evaluated using two response reduction indicators, showing up to 95% attenuation near the local resonance frequency. While response reduction improved with more units, the effect was not strictly proportional, suggesting the need for future optimization in LRM design. These findings demonstrate the feasibility of applying LRMs to building structures for effective vibration control in low-frequency ranges.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 10 PROCEEDINGS OF THE EIGHTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: P. Iványi, J. Kruis and B.H.V. Topping Paper 3.8 Experimental Investigation on Lateral Vibration Control of a Small-Scale Three-Story Frame Using Locally Resonant Metamaterials Y. Choi, J. Choi and H.S. Park Department of Architecture and Architectural Engineering, Yonsei University, Seoul, Republic of Korea Full Bibliographic Reference for this paper Y. Choi, J. Choi, H.S. Park, "Experimental Investigation on Lateral Vibration Control of a Small-Scale Three-Story Frame Using Locally Resonant Metamaterials", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Eighteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 10, Paper 3.8, 2025, Keywords: vibration control, locally resonant metamaterial, local resonant bandgap, modal characteristic, building structure, low-frequency vibration. Abstract This study experimentally investigates the effectiveness of locally resonant metamaterials (LRMs) in controlling lateral vibrations of a small-scale three-story steel frame. The LRMs were designed to target the structure’s third natural mode, and acceleration responses were measured under varying numbers of LRM units. As the number of LRM units increased, the frequency distance between the side peaks (DP) widened, indicating an enhancement in bandgap-related behaviour. Modal Assurance Criterion (MAC) analysis revealed that the side peaks maintained strong similarity to the target mode shape. The performance of the LRMs was evaluated using two response reduction indicators, showing up to 95% attenuation near the local resonance frequency. While response reduction improved with more units, the effect was not strictly proportional, suggesting the need for future optimization in LRM design. These findings demonstrate the feasibility of applying LRMs to building structures for effective vibration control in low-frequency ranges. download the full-text of this paper (PDF, 9 pages, 539 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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