Prediction of noise inside tracked vehicles

In this paper, numerical simulation has been used to predict the noise inside tracked vehicles. To determine the interaction forces between running track system and the chassis hull of a tracked vehicle, a rigid multi-body tracked vehicle mode, which includes the track moving system, was constructed...

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Bibliographic Details
Published in:Applied acoustics 2006, Vol.67 (1), p.74-91
Main Authors: Liu, Z.S., Lu, C., Wang, Y.Y., Lee, H.P., Koh, Y.K., Lee, K.S.
Format: Article
Language:English
Subjects:
Acoustics
Boundary element
Exact sciences and technology
Finite element
Fundamental areas of phenomenology (including applications)
Interior noise
Noise: its effects and control
Physics
Tracked vehicle
Vibro-acoustic analysis
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Summary:In this paper, numerical simulation has been used to predict the noise inside tracked vehicles. To determine the interaction forces between running track system and the chassis hull of a tracked vehicle, a rigid multi-body tracked vehicle mode, which includes the track moving system, was constructed and simulated using ADAMS software. Finite element (FE) and boundary element (BE) models of the chassis hull of a tracked vehicle were created and adopted to perform the vibro-acoustic analysis. Correlation between the FE and BE models and physical measurements proved sufficiently good that the models could be used to predict the interior noise in a tracked vehicle. The structural frequency dynamic response was determined using the software MSC/NASTRAN. The interior noise was predicted using the software SYSNOISE. The predicted noise levels in a tracked vehicle have been found to be in good agreement with physical measurements.
ISSN:0003-682X
1872-910X
DOI:10.1016/j.apacoust.2005.05.003