Browse Publications Technical Papers 2005-01-3554

Reducing High Frequency Driveshaft Radiated Noise by Polymer Liners 2005-01-3554

In automotive industry inserting cardboard liners or foam in the dirveshaft to prevent them from functioning as a path or amplifier to high frequency gear whine excitation is a common practice. Due to limited damping capability, these liners, however, have limited effectiveness and may not prevent or effectively reduce the shaft radiated noise. This paper addresses the feasibility and performance of polymers as an alternative lining material and technique. Through experimental investigations it has been shown that the polymer liners in reducing the driveshaft radiated noise are more effective than the cardboard liners.


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