Research on the Control of Wheel-rail Noise by Wheel Sound-proof Skirt for High-speed Train
| Autor: | Huanhuan Zhang, Xiaoyun Zhang, Xiaoan Zhang, Zhidan Huang, Guangtian Shi, Zhengxiao Xu |
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| Rok vydání: | 2019 |
| Předmět: |
Computer science
Frequency band Acoustics Noise reduction Transmission loss 020101 civil engineering High speed train 02 engineering and technology 010502 geochemistry & geophysics 01 natural sciences 0201 civil engineering Acoustic theory Noise Electromagnetic shielding Noise control 0105 earth and related environmental sciences |
| Zdroj: | 2019 IEEE International Conference on Mechatronics and Automation (ICMA). |
| Popis: | Shielding noise source is an effective way to reduce wheel-rail noise of high-speed railway. Wheel, as an important noise source, occupies a large proportion of wheel-rail noise. Therefore, shielding the wheel noise to reduce the radiated noise by installing sound-proof skirt is feasible. This paper takes transmission loss as the evaluation index, calculates and analyses the influence of different shapes and material parameters on the noise reduction effect of skirt basing on acoustic theory and statistical energy method. In order to provide a theoretical reference for reducing the noise radiation of high-speed train wheels and the choice of sound-proof skirts. The research results show that the structure and material parameters of the skirt will obviously affect the transmission loss in the whole frequency band. Under the same conditions, increasing the thickness of the skirt end face is beneficial to effectively isolate the noise; the Y-type skirt has stronger noise reduction performance than the T-type skirt; laying a higher unit mass of sound absorbing material can enhance the noise reduction effect of the skirt. |
| Databáze: | OpenAIRE |
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