Statistical analysis of vibration in tyres

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• 作者：Alain Le Bot^a ; ^b ; ^{alain.le-bot@ec-lyon.fr} ; Zakia Bazari^a ; ^b ; ^c ; Philippe Klein^a ; ^c ; Joë ; l Lelong^a ; ^c
• 关键词：Tyre-road contact ; Rolling noise ; Modal density ; Group speed ; Diffuse field
• 刊名：Journal of Sound and Vibration
• 出版年：2017
• 出版时间：31 March 2017
• 年：2017
• 卷：392
• 期：Complete
• 页码：187-199
• 全文大小：1275 K
• 卷排序：392

文摘

The vibration in tyres submitted to random forces in the contact zone is investigated with the model of prestressed orthotropic plate on visco-elastic foundation. It is shown that beyond a cut-on frequency a single wave propagates whose speed is directional-dependent. A systematic numerical exploration of the governing equation solutions shows that three regimes may exist in such plates. These are modal field, diffuse field and free field. For actual tyres which present a high level of damping, the passage from low to high frequencies generally explores the modal and free field regimes but not the diffuse field regime.