Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior Noise
Reduction of structure-borne noise in the compartment of a car is an important task in automotive engineering. Transfer path analysis using the vibroacoustic reciprocity technique or multiple path decomposition method has generally been used for structure-borne noise path analysis. These methods are...
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| Format: | Article |
| Language: | English |
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Wiley
2000-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2000/619326 |
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| _version_ | 1832562693077204992 |
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| author | S.K. Lee |
| author_facet | S.K. Lee |
| author_sort | S.K. Lee |
| collection | DOAJ |
| description | Reduction of structure-borne noise in the compartment of a car is an important task in automotive engineering. Transfer path analysis using the vibroacoustic reciprocity technique or multiple path decomposition method has generally been used for structure-borne noise path analysis. These methods are useful for solving a particular problem, but they do not quantify the effectiveness of vibration isolation of each isolator of a vehicle. To quantify the effectiveness of vibration isolation, vibrational power flow has been used for a simple isolation system or a laboratory-based isolation system. It is often difficult to apply the vibrational power flow technique to a complex isolation system like a car. In this paper, a simple equation is derived for calculation of the vibrational power flow of an isolation system with multiple isolators such as a car. It is successfully applied not only to quantifying the relative contributions of eighteen isolators, but also to reducing the structure-borne noise of a passenger car. According to the results, the main contributor of the eighteen isolators is the rear roll mount of an engine. The reduced structure-borne noise level is about 5dBA. |
| format | Article |
| id | doaj-art-aefc053afe0047b6bc12d91df216b12d |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2000-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-aefc053afe0047b6bc12d91df216b12d2025-02-03T01:22:01ZengWileyShock and Vibration1070-96221875-92032000-01-017527728510.1155/2000/619326Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior NoiseS.K. Lee0Department of Mechanical Engineering, Inha University, Yong Hyun Dong 253, Inchon, 402-751, KoreaReduction of structure-borne noise in the compartment of a car is an important task in automotive engineering. Transfer path analysis using the vibroacoustic reciprocity technique or multiple path decomposition method has generally been used for structure-borne noise path analysis. These methods are useful for solving a particular problem, but they do not quantify the effectiveness of vibration isolation of each isolator of a vehicle. To quantify the effectiveness of vibration isolation, vibrational power flow has been used for a simple isolation system or a laboratory-based isolation system. It is often difficult to apply the vibrational power flow technique to a complex isolation system like a car. In this paper, a simple equation is derived for calculation of the vibrational power flow of an isolation system with multiple isolators such as a car. It is successfully applied not only to quantifying the relative contributions of eighteen isolators, but also to reducing the structure-borne noise of a passenger car. According to the results, the main contributor of the eighteen isolators is the rear roll mount of an engine. The reduced structure-borne noise level is about 5dBA.http://dx.doi.org/10.1155/2000/619326 |
| spellingShingle | S.K. Lee Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior Noise Shock and Vibration |
| title | Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior Noise |
| title_full | Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior Noise |
| title_fullStr | Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior Noise |
| title_full_unstemmed | Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior Noise |
| title_short | Application of Vibrational Power Flow to a Passenger Car for Reduction of Interior Noise |
| title_sort | application of vibrational power flow to a passenger car for reduction of interior noise |
| url | http://dx.doi.org/10.1155/2000/619326 |
| work_keys_str_mv | AT sklee applicationofvibrationalpowerflowtoapassengercarforreductionofinteriornoise |