STUDY ON ACOUSTIC CONTRIBUTION ANALYSIS METHOD OF AUTOMOBILE TRANMISSION HOUSING
Aiming at the problem of radiated noise in automobile transmission housing, a method to find the exact location of effective reinforced concrete parts by using modal acoustic contribution analysis and panel acoustic contribution analysis is proposed. In this paper, the sound pressure curve and its p...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Journal of Mechanical Strength
2019-01-01
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| Series: | Jixie qiangdu |
| Subjects: | |
| Online Access: | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.040 |
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| _version_ | 1841535633064984576 |
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| author | ZONG BangFei CHU ChaoMei HUANG Chen LIU ChunZhen |
| author_facet | ZONG BangFei CHU ChaoMei HUANG Chen LIU ChunZhen |
| author_sort | ZONG BangFei |
| collection | DOAJ |
| description | Aiming at the problem of radiated noise in automobile transmission housing, a method to find the exact location of effective reinforced concrete parts by using modal acoustic contribution analysis and panel acoustic contribution analysis is proposed. In this paper, the sound pressure curve and its peak frequency of the transmission shell are obtained by using the analysis method of acoustic boundary element. Then, by analyzing the contribution of modal acoustics at peak frequency, the modal order of the larger contribution to the noise is obtained, and the local area with large acoustic contribution is obtained from the modal cloud. Finally, the localized region of the acoustic contribution is analyzed by the acoustic section contribution analysis, so as to find out the acoustic Contribution to the larger and need to improve the specific parts. Furthermore, the structure of the transmission case is improved, and the improved structure is verified. The study shows that the method of reducing the radiation noise of the shell by means of modal acoustic contribution analysis and panel acoustic contribution analysis is an effective method to find out the specific parts of the shell that need to be improved intuitively and accurately, and the improved shell structure can be effective improved the noise characteristics of the shell. |
| format | Article |
| id | doaj-art-7cdcb00b5ded4622ba8a4816ab8dd737 |
| institution | Kabale University |
| issn | 1001-9669 |
| language | zho |
| publishDate | 2019-01-01 |
| publisher | Editorial Office of Journal of Mechanical Strength |
| record_format | Article |
| series | Jixie qiangdu |
| spelling | doaj-art-7cdcb00b5ded4622ba8a4816ab8dd7372025-01-15T02:30:24ZzhoEditorial Office of Journal of Mechanical StrengthJixie qiangdu1001-96692019-01-014149349830604530STUDY ON ACOUSTIC CONTRIBUTION ANALYSIS METHOD OF AUTOMOBILE TRANMISSION HOUSINGZONG BangFeiCHU ChaoMeiHUANG ChenLIU ChunZhenAiming at the problem of radiated noise in automobile transmission housing, a method to find the exact location of effective reinforced concrete parts by using modal acoustic contribution analysis and panel acoustic contribution analysis is proposed. In this paper, the sound pressure curve and its peak frequency of the transmission shell are obtained by using the analysis method of acoustic boundary element. Then, by analyzing the contribution of modal acoustics at peak frequency, the modal order of the larger contribution to the noise is obtained, and the local area with large acoustic contribution is obtained from the modal cloud. Finally, the localized region of the acoustic contribution is analyzed by the acoustic section contribution analysis, so as to find out the acoustic Contribution to the larger and need to improve the specific parts. Furthermore, the structure of the transmission case is improved, and the improved structure is verified. The study shows that the method of reducing the radiation noise of the shell by means of modal acoustic contribution analysis and panel acoustic contribution analysis is an effective method to find out the specific parts of the shell that need to be improved intuitively and accurately, and the improved shell structure can be effective improved the noise characteristics of the shell.http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.040Transmission housingRadiation noiseModal acoustics contributionPanel acoustics contributionStructure improvement |
| spellingShingle | ZONG BangFei CHU ChaoMei HUANG Chen LIU ChunZhen STUDY ON ACOUSTIC CONTRIBUTION ANALYSIS METHOD OF AUTOMOBILE TRANMISSION HOUSING Jixie qiangdu Transmission housing Radiation noise Modal acoustics contribution Panel acoustics contribution Structure improvement |
| title | STUDY ON ACOUSTIC CONTRIBUTION ANALYSIS METHOD OF AUTOMOBILE TRANMISSION HOUSING |
| title_full | STUDY ON ACOUSTIC CONTRIBUTION ANALYSIS METHOD OF AUTOMOBILE TRANMISSION HOUSING |
| title_fullStr | STUDY ON ACOUSTIC CONTRIBUTION ANALYSIS METHOD OF AUTOMOBILE TRANMISSION HOUSING |
| title_full_unstemmed | STUDY ON ACOUSTIC CONTRIBUTION ANALYSIS METHOD OF AUTOMOBILE TRANMISSION HOUSING |
| title_short | STUDY ON ACOUSTIC CONTRIBUTION ANALYSIS METHOD OF AUTOMOBILE TRANMISSION HOUSING |
| title_sort | study on acoustic contribution analysis method of automobile tranmission housing |
| topic | Transmission housing Radiation noise Modal acoustics contribution Panel acoustics contribution Structure improvement |
| url | http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2019.02.040 |
| work_keys_str_mv | AT zongbangfei studyonacousticcontributionanalysismethodofautomobiletranmissionhousing AT chuchaomei studyonacousticcontributionanalysismethodofautomobiletranmissionhousing AT huangchen studyonacousticcontributionanalysismethodofautomobiletranmissionhousing AT liuchunzhen studyonacousticcontributionanalysismethodofautomobiletranmissionhousing |