Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of Pipelines
This paper proposes a pipeline vibration control method based on the vibration localization energy dissipation principle of cyclic mistuned structure (CMS). The influence of the frequency mistuning strength and coupling strength of the resonant units on vibration localization characteristics is stud...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/12/6852 |
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| author | Lihang Yin Wei Xu Jian Zhou Song Liu Liantao Xiao |
| author_facet | Lihang Yin Wei Xu Jian Zhou Song Liu Liantao Xiao |
| author_sort | Lihang Yin |
| collection | DOAJ |
| description | This paper proposes a pipeline vibration control method based on the vibration localization energy dissipation principle of cyclic mistuned structure (CMS). The influence of the frequency mistuning strength and coupling strength of the resonant units on vibration localization characteristics is studied using perturbation analysis. Subsequently, numerical simulations are conducted to verify the theoretical results. Theoretical and numerical results indicate that setting an appropriate mistuning strength and minimizing the coupling strength are conducive to achieving broadband vibration reduction. On this basis, a pipeline-oriented CMS is proposed. It achieves low-frequency broadband vibration control of pipelines by regulating the frequency mistuning strength of the resonant units located in the annular hierarchical honeycomb structure. Finally, tests are conducted to verify the vibration reduction performance of the CMS. Following the installation of the CMS, the frequency response function (FRF) amplitude of the pipeline steadily decreases over a wide frequency band. The excitation test results indicate that the CMS reduced the acceleration amplitude of the pipeline by 34.7 dB at 82.5 Hz, 16.0 dB at 90 Hz, and 19.8 dB in the broadband vibration level between 70 Hz and 120 Hz. |
| format | Article |
| id | doaj-art-d3f5a218169d41b6aff8a51b299b55a9 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-d3f5a218169d41b6aff8a51b299b55a92025-08-20T03:32:27ZengMDPI AGApplied Sciences2076-34172025-06-011512685210.3390/app15126852Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of PipelinesLihang Yin0Wei Xu1Jian Zhou2Song Liu3Liantao Xiao4Institute of Noise and Vibration, Naval University of Engineering, Wuhan 430033, ChinaInstitute of Noise and Vibration, Naval University of Engineering, Wuhan 430033, ChinaMarine Design and Research Institute of China, Shanghai 200011, ChinaInstitute of Noise and Vibration, Naval University of Engineering, Wuhan 430033, ChinaInstitute of Noise and Vibration, Naval University of Engineering, Wuhan 430033, ChinaThis paper proposes a pipeline vibration control method based on the vibration localization energy dissipation principle of cyclic mistuned structure (CMS). The influence of the frequency mistuning strength and coupling strength of the resonant units on vibration localization characteristics is studied using perturbation analysis. Subsequently, numerical simulations are conducted to verify the theoretical results. Theoretical and numerical results indicate that setting an appropriate mistuning strength and minimizing the coupling strength are conducive to achieving broadband vibration reduction. On this basis, a pipeline-oriented CMS is proposed. It achieves low-frequency broadband vibration control of pipelines by regulating the frequency mistuning strength of the resonant units located in the annular hierarchical honeycomb structure. Finally, tests are conducted to verify the vibration reduction performance of the CMS. Following the installation of the CMS, the frequency response function (FRF) amplitude of the pipeline steadily decreases over a wide frequency band. The excitation test results indicate that the CMS reduced the acceleration amplitude of the pipeline by 34.7 dB at 82.5 Hz, 16.0 dB at 90 Hz, and 19.8 dB in the broadband vibration level between 70 Hz and 120 Hz.https://www.mdpi.com/2076-3417/15/12/6852pipelinevibration localizationcyclic mistuned structurelow-frequency broadband vibration |
| spellingShingle | Lihang Yin Wei Xu Jian Zhou Song Liu Liantao Xiao Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of Pipelines Applied Sciences pipeline vibration localization cyclic mistuned structure low-frequency broadband vibration |
| title | Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of Pipelines |
| title_full | Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of Pipelines |
| title_fullStr | Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of Pipelines |
| title_full_unstemmed | Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of Pipelines |
| title_short | Vibration Localization in Cyclic Mistuned Structure and Its Application to Low-Frequency Broadband Vibration Control of Pipelines |
| title_sort | vibration localization in cyclic mistuned structure and its application to low frequency broadband vibration control of pipelines |
| topic | pipeline vibration localization cyclic mistuned structure low-frequency broadband vibration |
| url | https://www.mdpi.com/2076-3417/15/12/6852 |
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