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| Statistical energy analysis and control for railway passenger car interior noise |
| Received:December 09, 2008 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20103023 |
| KeyWord:railway passenger car noise prediction statistical energy analysis |
| Author | Institution |
| 谢素明 |
大连交通大学 交通运输工程学院,大连 |
| 陈伟 |
大连交通大学 交通运输工程学院,大连 |
| 兆文忠 |
大连交通大学 交通运输工程学院,大连 |
| 佟维 |
大连交通大学 交通运输工程学院,大连 |
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| Abstract: |
| The establishment of a railway passenger car model based on the theory of SEA(statistical energy analysis) is discussed. The interior noise of the car is calculated under the certain power, and the SPL results of the SEA model, and obtain a difference of less than 4dB(A) compared to the test data over the frequency range of 500 Hz~2500 Hz. According to analysis of the main path of the energy flow, the primary contribution to sound pressure level in the car is the floor vibration at low frequency band, and slit leakages at high frequency band. Some effective ways to reduce the car interior noise are put forward with analysis and simulation, and the effects of the different ways are compared. The sound pressure level interior car can be reduced within 2dB(A)~3.2dB(A) after taking noise debasing treatments to the main parts. |
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