Е-Публикации
Технически университет - София

Abstract: In the presented article we have investigated the variation of the sound pressure level in characteristic areas around an element of an acoustic barrier with an elliptical shape at different frequencies (from 100 Hz to 2000 Hz). The variation of the sound pressure level in four characteristic areas located on the axis of symmetry of the acoustic barrier element is investigated. The purpose of the research is to determine in which of the areas it is most efficient to place devices for generating electrical energy from acoustic noise. The results were analyzed and relevant conclusions were drawn.

References

1. Yuan, M.; Zioing, C.; Luo, J.; Chou, X. Recent Developments of Acoustic Energy Harvesting: A Review. Micromachines 2019, 10, 48
2. Song, C.; Zhao, J.; Ma, X.; Zhang, M.; Yuan, W.; Yang, F.; Wang, Z.; Zhang, X.; Pan, Y. Multi-frequency sound energy harvesting using Helmholtz resonators with irradiated cross-linked polypropylene ferroelectret films. AIP Adv. 2021, 11, 115002
3. Choi, J.; Jung, I.; Kang, C.-Y. A brief review of sound energy harvesting. Nano Energy 2019, 56, 169–183.
4. Kralov, I.; Terzieva, S.; Ignatov, I. Analysis of methods and MEMS for acoustic energy harvesting with application in railway noise reduction. Rom. Rev. Precis. Mech. Opt. Mechatron. 2011, 3, 56–62.
5. Kralov, I. New solution for transport and industrial noise protection through reflective noise barriers. In Proceedings of the 9th International Scientific Conference on Aeronautics, Automotive and Railway Engineering and Technologies, BulTrans, Sozopol, Bulgaria, 11–13 September 2017; Volume 133.
6. Kralov, I.; Nedelchev, K. Lowering the noise level in the transport flows through reduction of the traffic barrier reflected noise. IOP Conf. Ser. Mater. Sci. Eng. 2019, 618, 012051
7. Liang, H.; Hao, G.; Olszewski, O. A review on vibration-based piezoelectric energy harvesting from the aspect of compliant mechanisms. Sens. Actuators A Phys. 2021, 331, 112743.
8. Hu, Z.; Yang, C.; Cheng, L. Acoustic resonator tuning strategies for the narrowband noise control in an enclosure. Appl. Acoust. 2018, 134, 88–96
9. Zhang, H.; Zhu, Y. Omnidirectional Ventilated Acoustic Barrier. Appl. Phys. Lett. 2017, 111, 203502
10. Noh, H. Acoustic energy harvesting using piezoelectric generator for railway environmental noise. Adv. Mech. Eng. 2018, 10, 1–9.
11. Wang, Y.; Zhu, X.; Zhang, T.; Bano, S.; Pan, H.; Qi, L.; Zhang, Z.; Yuan, Y. A renewable low-frequency acoustic energy harvesting noise barrier for high-speed railways using a Helmholtz resonator and a PVDF film. Appl. Energy 2018, 230, 52–61
12. Hosseinkhani, A.; Younesian, D.; Eghbali, P.; Moayedizadeh, A.; Fassih, A. Sound and vibration energy harvesting for railway applications: A review on linear and nonlinear techniques. Energy Rep. 2021, 7, 852–874
13. Qi, S.; Oudich, M.; Li, Y.; Assouar, B. Acoustic energy harvesting based on a planar acoustic metamaterial. Appl. Phys. Lett. 2016, 108, 263501
14. Guo, H.; Wang, Y.S.; Wang, X.; Xu, C. Investigation on acoustic energy harvesting based on quarter-wavelength resonator photonic crystals. Adv. Mech. Eng. 2018, 10, 1–13
15. Ji, X.; Yang, L.; Xue, Z.; Deng, L.; Wang, D. Enhanced Quarter Spherical Acoustic Energy Harvester Based on Dual Helmholtz Resonators. Sensors 2020, 20, 7275
16. Li, B.; You, J.H.; Kim, Y.-J. Low frequency acoustic energy harvesting using PZT piezoelectric plates in straight-tube resonator. Smart Mater. Struct. 2013, 22, 55013
17. Li, B.; Laviage, A.J.; You, J.H.; Kim, Y.-J. Harvesting low-frequency acoustic energy using quarter-wavelength straight-tube acoustic resonator. Appl. Acoust. 2013, 74, 1271–1278.
18. Liu, G.-S.; Peng, Y.-Y.; Liu, M.-H.; Zou, X.-Y.; Cheng, J.-C. Broadband acoustic energy harvesting metasurface with coupled Helmholtz resonators. Appl. Phys. Lett. 2018, 113, 153503
19. Kumar, S.; Lee, H.P. The Present and Future Role of Acoustic Metamaterials for Architectural and Urban Noise Mitigations. Acoustics 2019, 3, 590–607
20. Yuan, T.; Chen, F.; Yang, J.; Song, R.; Kong, Y. Novel Circular Plate Acoustic Energy Harvester for Urban Railway Noise. Shock Vib. 2021, 2021, 1–13
21. Nedelchev, K.; Kralov, I. Efficiency improvement of a vibration energy harvesting generator by using additional vibrating system. In Proceedings of the 43rd International Conference on Applications of Mathematics in Engineering and Economics, AMEE 2017, AIP Conference Proceedings, Sozopol, Bulgaria, 8–13 June 2017
22. Aleksandrova, M. Spray deposition of piezoelectric polymer on plastic substrate for vibrational harvesting and force sensing applications. AIMS Mat. Sci. 2018, 5, 1214–1222
23. Nedelchev, K.; Kralov, I.; Gieva, E.; Ruskova, I. Modeling of acoustic barrier for energy harvesting applications having placed additional element having circle shape with COMSOL. J. Balk. Tribol. Assoc. 2022, 28, 1–14
24. Gieva, E.; Ruskova, I.; Nedelchev, K.; Kralov, I. COMSOL modelling of acoustic barrier for energy harvesting applications. J. Environ. Prot. Ecol. 2022, 23, 20–29
25. Nedelchev, K.; Kralov, I. Study of the change of acoustic pressure in an acoustic barrier element in the form of a logarithmic spiral. J. Balk. Tribol. Assoc. 2022, 28, 51–63
26. COMSOL. Available online: www.comsol.com (accessed on 1 May 2022)
27. Li, D.; Hu, M.; Wu, F.; Liu, K.; Gao, M.; Ju, Z.; Zhao, J.; Bao, A. Design of tunable low-frequency acoustic energy harvesting barrier for subway tunnel based on an optimized Helmholtz resonator and a PZT circular plate. Energy Rep. 2022, 8, 8108–8123

Issue