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http://dx.doi.org/10.5050/KSNVN.2006.16.6.582

Identification of the Interior Noise Generated by SUV Axle and Modification of the Structural on Axle System for Noise Reduction  

Lee, Ju-Young (인하대학교 대학원 기계공학과)
Jo, Yoon-Kyeong (다이모스 시험연구부)
Kim, Jong-Youn (다이모스 시험연구부)
Lee, Sang-Kwon (인하대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.16, no.6, 2006 , pp. 582-592 More about this Journal
Abstract
This paper presents experimental and analytic methods to reduce interior noise generated by car axle. The test vehicle has a whine noise problem at passenger seats. In order to identify transfer path of interior axle noise, the vibration path analysis, the modal analysis and running modal analysis are systematically employed. By using these various methods, it has been founded that the interior noise generated by car axle was air borne noise. To reduce and predict axle noise, various structural modifications are performed by using FEM and BEM techniques, respectively. Through the modification of the axle structure, the air borne noise of the axle was reduced 3$\sim$4 dBA level.
Keywords
Axle Noise; Whine Noise; Experimental Modal Analysis; Running Modal Analysis; Finite Element Method; Boundary Element Method; Structure-borne Noise; Air-born Noise;
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