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A Control Method of Time-Domain Noise from Shells Based on a CGVF Algorithm China Research and Development Academy of Machinery Equipmen
- Format:
- Book
- Conference/Event
- Author/Creator:
- Zheng, Hao, author.
- Conference Name:
- 2025 8th International Conference on Traffic Transportation and Civil Architecture (ICTTCA 2025) (2025-04-18 : Tianjin, China)
- Language:
- English
- Physical Description:
- 1 online resource cm
- Place of Publication:
- Warrendale, PA SAE International 2025
- Summary:
- The presence of time-varying loads on shell structures can result in the generation of undesirable noise in the time domain. This paper presents a time-domain noise control method based on piezoelectric smart shell structures. Firstly, a coupled time-domain finite element/boundary element method (TDFEM/BEM) is used to calculate the sound pressure radiated from shell structures subjected to arbitrary time-varying loads. Then a classical time-domain CGVF algorithm is used to control the vibration and to suppress the sound radiation from structures. Finally, numerical examples demonstrate a 44.2% reduction in the displacement response, a 35.8% decrease in acceleration response, a 36.2% decline in sound pressure of the central node, and a 28.5% decrease in average surface sound pressure. The results show that after CGVF control, the vibration and radiation noise of the plate/shell structure under time domain load are effectively reduced, which is of great significance in engineering projects
- Notes:
- Vendor supplied data
- Publisher Number:
- 2025-99-0201
- Access Restriction:
- Restricted for use by site license
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