Blocking Masses Applied to Surface Propagating Waves
Peplow, Andrew LU
and Barbagallo, Mathias
LU
(2023)
10th International Conference on Wave Mechanics and Vibrations, WMVC 2022
In Mechanisms and Machine Science
125 MMS.
p.641-650
- Abstract
Ground vibration generated by rail and road traffic is a major source of environmental noise and vibration pollution in the low-frequency range. A promising and cost-effective mitigation method could be the use of heavy masses placed as an array on the ground surface near the road or track, these could be concrete or stone blocks, or specially designed brick walls, for example. This work concerns the effectiveness of such “blocking” masses. We consider propagating waves in a finite depth elastic layer assuming plane strain conditions. Given that the masses are considered solid objects we may place these on the surface, embedded or submerged in the elastic medium where a finite element method is considered as a computational solution... (More)
Ground vibration generated by rail and road traffic is a major source of environmental noise and vibration pollution in the low-frequency range. A promising and cost-effective mitigation method could be the use of heavy masses placed as an array on the ground surface near the road or track, these could be concrete or stone blocks, or specially designed brick walls, for example. This work concerns the effectiveness of such “blocking” masses. We consider propagating waves in a finite depth elastic layer assuming plane strain conditions. Given that the masses are considered solid objects we may place these on the surface, embedded or submerged in the elastic medium where a finite element method is considered as a computational solution technique. Next, we may assume the masses are aligned as a periodic infinite array and enforce periodic boundary conditions around a “unit-cell”. By consideration of propagating waves via Floquet-Bloch theory we shall investigate the existence or lack thereof of propagating surface and body waves. This analysis supports a semi-analytical lumped-parameter method assuming the blocking masses are point masses situated on an elastic waveuide. The work is enhanced by an example highlighting advantages and disadvantages of multiple-mass scatterers in terms of possible stopband intervals related to propagating surface waves.
(Less)
- author
- Peplow, Andrew
LU
and Barbagallo, Mathias
LU
- organization
- publishing date
- 2023
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Blocking masses, Periodic array, Surface elastic waves
- host publication
- Recent Trends in Wave Mechanics and Vibrations - Proceedings of WMVC 2022
- series title
- Mechanisms and Machine Science
- editor
- Gonçalves, Rodrigo ; Dimitrovová, Zuzana ; Biswas, Paritosh and Silva, Tiago
- volume
- 125 MMS
- pages
- 10 pages
- publisher
- Springer
- conference name
- 10th International Conference on Wave Mechanics and Vibrations, WMVC 2022
- conference location
- Lisbon, Portugal
- conference dates
- 2022-07-04 - 2022-07-06
- external identifiers
-
- scopus:85141765734
- ISSN
- 2211-0984
- 2211-0992
- ISBN
- 9783031157578
- DOI
- 10.1007/978-3-031-15758-5_66
- language
- English
- LU publication?
- yes
- id
- c2294e57-5453-4ccc-8931-ec9c4d92b0b8
- date added to LUP
- 2022-11-22 14:07:20
- date last changed
- 2024-06-25 05:18:53
@inproceedings{c2294e57-5453-4ccc-8931-ec9c4d92b0b8,
abstract = {{<p>Ground vibration generated by rail and road traffic is a major source of environmental noise and vibration pollution in the low-frequency range. A promising and cost-effective mitigation method could be the use of heavy masses placed as an array on the ground surface near the road or track, these could be concrete or stone blocks, or specially designed brick walls, for example. This work concerns the effectiveness of such “blocking” masses. We consider propagating waves in a finite depth elastic layer assuming plane strain conditions. Given that the masses are considered solid objects we may place these on the surface, embedded or submerged in the elastic medium where a finite element method is considered as a computational solution technique. Next, we may assume the masses are aligned as a periodic infinite array and enforce periodic boundary conditions around a “unit-cell”. By consideration of propagating waves via Floquet-Bloch theory we shall investigate the existence or lack thereof of propagating surface and body waves. This analysis supports a semi-analytical lumped-parameter method assuming the blocking masses are point masses situated on an elastic waveuide. The work is enhanced by an example highlighting advantages and disadvantages of multiple-mass scatterers in terms of possible stopband intervals related to propagating surface waves.</p>}},
author = {{Peplow, Andrew and Barbagallo, Mathias}},
booktitle = {{Recent Trends in Wave Mechanics and Vibrations - Proceedings of WMVC 2022}},
editor = {{Gonçalves, Rodrigo and Dimitrovová, Zuzana and Biswas, Paritosh and Silva, Tiago}},
isbn = {{9783031157578}},
issn = {{2211-0984}},
keywords = {{Blocking masses; Periodic array; Surface elastic waves}},
language = {{eng}},
pages = {{641--650}},
publisher = {{Springer}},
series = {{Mechanisms and Machine Science}},
title = {{Blocking Masses Applied to Surface Propagating Waves}},
url = {{http://dx.doi.org/10.1007/978-3-031-15758-5_66}},
doi = {{10.1007/978-3-031-15758-5_66}},
volume = {{125 MMS}},
year = {{2023}},
}