Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials
The noise level in a tractor cab directly affects the driving experience. Reducing the noise level in a tractor cab is an important means of improving the image of the product brand and protecting the physical and psychological health of employees. To reduce medium- and low-frequency noise in a trac...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2022-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9738629/ |
| _version_ | 1818285576781037568 |
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| author | Zhipeng Wang Yanyan Zuo Liming Sun Xiaohe Zhao |
| author_facet | Zhipeng Wang Yanyan Zuo Liming Sun Xiaohe Zhao |
| author_sort | Zhipeng Wang |
| collection | DOAJ |
| description | The noise level in a tractor cab directly affects the driving experience. Reducing the noise level in a tractor cab is an important means of improving the image of the product brand and protecting the physical and psychological health of employees. To reduce medium- and low-frequency noise in a tractor cab, the influence of the installation of coupled resonance acoustic materials (CRAMs) on tractor driver ear noise is investigated in this study. Theories for sound absorption by perforated plates and sound insulation by thin membranes are used to design a CRAM composed of a perforated plate, elastic membrane and additional mass. The acoustic impedance and sound absorption coefficient of the CRAM are obtained by an equivalent circuit method, and the resonance frequency of a local resonance system composed of an elastic membrane and additional mass is calculated. The effects of different hole diameters and porosities of the perforated plate on the CRAM sound absorption coefficient are compared. The results of tests performed using impedance tubes over a wide frequency range of 50 Hz~1600 Hz show that the maximum sound absorption coefficient is 0.99 and several transmission loss peaks of 15 dB~26 dB. Measurement of the acoustic response of the CRAM installed on the cab front panel shows that an ear noise reduction of approximately 1.3 dB(A) for a tractor working speed of 2200 rpm. The results show that the designed CRAM has a relatively good effect on reducing driver ear noise over a wide frequency band and is a feasible scheme for noise reduction in a tractor cab. |
| first_indexed | 2024-12-13T01:10:54Z |
| format | Article |
| id | doaj.art-e12f993c6ebb47d19292f1a69b89c545 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T01:10:54Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-e12f993c6ebb47d19292f1a69b89c5452022-12-22T00:04:28ZengIEEEIEEE Access2169-35362022-01-0110326893269510.1109/ACCESS.2022.31607349738629Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic MaterialsZhipeng Wang0https://orcid.org/0000-0001-7596-6553Yanyan Zuo1Liming Sun2Xiaohe Zhao3School of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaSchool of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaSchool of Automobile and Traffic Engineering, Jiangsu University, Zhenjiang, ChinaHenan Institute of Technology, Xinxiang, ChinaThe noise level in a tractor cab directly affects the driving experience. Reducing the noise level in a tractor cab is an important means of improving the image of the product brand and protecting the physical and psychological health of employees. To reduce medium- and low-frequency noise in a tractor cab, the influence of the installation of coupled resonance acoustic materials (CRAMs) on tractor driver ear noise is investigated in this study. Theories for sound absorption by perforated plates and sound insulation by thin membranes are used to design a CRAM composed of a perforated plate, elastic membrane and additional mass. The acoustic impedance and sound absorption coefficient of the CRAM are obtained by an equivalent circuit method, and the resonance frequency of a local resonance system composed of an elastic membrane and additional mass is calculated. The effects of different hole diameters and porosities of the perforated plate on the CRAM sound absorption coefficient are compared. The results of tests performed using impedance tubes over a wide frequency range of 50 Hz~1600 Hz show that the maximum sound absorption coefficient is 0.99 and several transmission loss peaks of 15 dB~26 dB. Measurement of the acoustic response of the CRAM installed on the cab front panel shows that an ear noise reduction of approximately 1.3 dB(A) for a tractor working speed of 2200 rpm. The results show that the designed CRAM has a relatively good effect on reducing driver ear noise over a wide frequency band and is a feasible scheme for noise reduction in a tractor cab.https://ieeexplore.ieee.org/document/9738629/Coupled resonance acoustic material (CRAM)tractornoise reduction |
| spellingShingle | Zhipeng Wang Yanyan Zuo Liming Sun Xiaohe Zhao Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials IEEE Access Coupled resonance acoustic material (CRAM) tractor noise reduction |
| title | Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials |
| title_full | Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials |
| title_fullStr | Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials |
| title_full_unstemmed | Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials |
| title_short | Noise Reduction in Tractor Cabs Using Coupled Resonance Acoustic Materials |
| title_sort | noise reduction in tractor cabs using coupled resonance acoustic materials |
| topic | Coupled resonance acoustic material (CRAM) tractor noise reduction |
| url | https://ieeexplore.ieee.org/document/9738629/ |
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