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M. Li¹, X. Liu¹, X. Zhou², X. Sheng², H. Shen¹ and X. Jin²

¹School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, China
²State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China

doi:10.4203/ccp.110.318

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M. Li, X. Liu, X. Zhou, X. Sheng, H. Shen, X. Jin, "Analysis of the Vibration and Sound Radiation Characteristics of a Sprayed Damped Wheel with Different Damping Rings", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 318, 2016. doi:10.4203/ccp.110.318

Keywords: sprayed damping wheel, natural frequency, damping ratio, mode shape, frequency response function, sound energy level.

Summary

This paper analyzes the vibration and sound radiation characteristics of a straight web railway wheel with and without sprayed damping and damping rings. The natural frequencies, damping ratios and frequency response function (FRF) are obtained through modal testing. The sound energy level (SEL) is obtained through the tests of sound radiation in the hemi-anechoic room, and the vibration characteristics are analysed. The analysis results show that both the FRF and the SEL of the damped wheel are reduced significantly if compared with the wheel without any damping treatment (the bare wheel). The overall SEL of the damped wheel with 12mm damping rings due to radial and axial excitations are, respectively, 10.9dB and 9.5dB lower than those of the normal one. The overall SEL of the damped wheel with 14mm damping rings due to radial and axial excitations are, respectively, 13.0dB and 13.0dB lower than those of the bare wheel.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 110 PROCEEDINGS OF THE THIRD INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 318 Analysis of the Vibration and Sound Radiation Characteristics of a Sprayed Damped Wheel with Different Damping Rings M. Li¹, X. Liu¹, X. Zhou², X. Sheng², H. Shen¹ and X. Jin² ¹School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu, China ²State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China doi:10.4203/ccp.110.318 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Li, X. Liu, X. Zhou, X. Sheng, H. Shen, X. Jin, "Analysis of the Vibration and Sound Radiation Characteristics of a Sprayed Damped Wheel with Different Damping Rings", in J. Pombo, (Editor), "Proceedings of the Third International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 318, 2016. doi:10.4203/ccp.110.318 Keywords: sprayed damping wheel, natural frequency, damping ratio, mode shape, frequency response function, sound energy level. Summary This paper analyzes the vibration and sound radiation characteristics of a straight web railway wheel with and without sprayed damping and damping rings. The natural frequencies, damping ratios and frequency response function (FRF) are obtained through modal testing. The sound energy level (SEL) is obtained through the tests of sound radiation in the hemi-anechoic room, and the vibration characteristics are analysed. The analysis results show that both the FRF and the SEL of the damped wheel are reduced significantly if compared with the wheel without any damping treatment (the bare wheel). The overall SEL of the damped wheel with 12mm damping rings due to radial and axial excitations are, respectively, 10.9dB and 9.5dB lower than those of the normal one. The overall SEL of the damped wheel with 14mm damping rings due to radial and axial excitations are, respectively, 13.0dB and 13.0dB lower than those of the bare wheel. purchase the full-text of this paper (price £22) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £85 +P&P)
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