Model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation
This study proposes an analytically unprecedented model of a meta-lattice truss with local resonators to generate a broader low-frequency bandgap. By leveraging the mass–spring model, a new equivalent meta-unit cell considering the elastic shear springs is developed to accurately predict the perform...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
ELSEVIER
2021
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/91620 |
| _version_ | 1848765560551112704 |
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| author | Vo, N.H. Pham, Thong Bi, Kaiming Hao, Hong |
| author_facet | Vo, N.H. Pham, Thong Bi, Kaiming Hao, Hong |
| author_sort | Vo, N.H. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This study proposes an analytically unprecedented model of a meta-lattice truss with local resonators to generate a broader low-frequency bandgap. By leveraging the mass–spring model, a new equivalent meta-unit cell considering the elastic shear springs is developed to accurately predict the performance of the meta-lattice truss in suppressing stress wave propagations. Theoretical analyses and numerical simulations are conducted to examine the effectiveness of the proposed model. Sensitivity analyses are also performed to investigate the influences of masses and spring parameters on the bandgap characteristics of the meta-lattice truss. Based on the theoretical prediction, the system transmission coefficient is utilized to examine the transmissibility effect among the resonators. A three-dimensional finite element model of meta-lattice truss is also built and its accuracy in predicting the stress wave propagations is verified against the analytical predictions. The structural responses in the time domain and time–frequency domain demonstrate the superiority of meta-lattice truss in suppression of wave transmission as compared to that predicted by the conventional counterparts. |
| first_indexed | 2025-11-14T11:37:12Z |
| format | Journal Article |
| id | curtin-20.500.11937-91620 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:37:12Z |
| publishDate | 2021 |
| publisher | ELSEVIER |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-916202023-05-17T07:31:48Z Model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation Vo, N.H. Pham, Thong Bi, Kaiming Hao, Hong Science & Technology Technology Physical Sciences Acoustics Mechanics Physics, Multidisciplinary Physics Metamaterials Wave manipulation Programmable design Low-frequency bandgaps Locally resonant Meta-lattice model BROAD-BAND METAMATERIALS MITIGATION DESIGN IMPACT TRANSMISSION This study proposes an analytically unprecedented model of a meta-lattice truss with local resonators to generate a broader low-frequency bandgap. By leveraging the mass–spring model, a new equivalent meta-unit cell considering the elastic shear springs is developed to accurately predict the performance of the meta-lattice truss in suppressing stress wave propagations. Theoretical analyses and numerical simulations are conducted to examine the effectiveness of the proposed model. Sensitivity analyses are also performed to investigate the influences of masses and spring parameters on the bandgap characteristics of the meta-lattice truss. Based on the theoretical prediction, the system transmission coefficient is utilized to examine the transmissibility effect among the resonators. A three-dimensional finite element model of meta-lattice truss is also built and its accuracy in predicting the stress wave propagations is verified against the analytical predictions. The structural responses in the time domain and time–frequency domain demonstrate the superiority of meta-lattice truss in suppression of wave transmission as compared to that predicted by the conventional counterparts. 2021 Journal Article http://hdl.handle.net/20.500.11937/91620 10.1016/j.wavemoti.2021.102735 English http://purl.org/au-research/grants/arc/FL180100196 ELSEVIER fulltext |
| spellingShingle | Science & Technology Technology Physical Sciences Acoustics Mechanics Physics, Multidisciplinary Physics Metamaterials Wave manipulation Programmable design Low-frequency bandgaps Locally resonant Meta-lattice model BROAD-BAND METAMATERIALS MITIGATION DESIGN IMPACT TRANSMISSION Vo, N.H. Pham, Thong Bi, Kaiming Hao, Hong Model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation |
| title | Model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation |
| title_full | Model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation |
| title_fullStr | Model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation |
| title_full_unstemmed | Model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation |
| title_short | Model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation |
| title_sort | model for analytical investigation on meta-lattice truss for low-frequency spatial wave manipulation |
| topic | Science & Technology Technology Physical Sciences Acoustics Mechanics Physics, Multidisciplinary Physics Metamaterials Wave manipulation Programmable design Low-frequency bandgaps Locally resonant Meta-lattice model BROAD-BAND METAMATERIALS MITIGATION DESIGN IMPACT TRANSMISSION |
| url | http://purl.org/au-research/grants/arc/FL180100196 http://hdl.handle.net/20.500.11937/91620 |