A Comparison of Fiber Wheel Liners on Two Different Vehicles

Document Number: 2009-01-2106

Date Published: May 2009

Author(s):
Barry Wyerman - Janesville Acoustics
Gabriella Cerrato Jay - Sound Answers Inc.
Eric Frank - Sound Answers Inc.

Abstract:
Identical fiber wheel liners were installed on two different mid-size vehicles in order to compare the noise reduction for each vehicle. The fiber liners represented material in current production. A baseline noise level was established with the existing plastic wheel liners and then comparisons were made with fiber wheel liners. Noise levels were compared in the wheel well and in the interior for similar vehicle operating conditions. For both vehicles, significant tire noise reduction at the source was measured with fiber liners compared to plastic liners. One of the vehicles also demonstrated noise reduction in the passenger cabin with fiber liners. Insight into potential explanations for these differences was provided by comparing the noise levels at different locations within the vehicles. The results show how fiber liners are an additional tool to reduce the noise in a vehicle and how the NVH design for the balance of the vehicle can leverage the NVH impact of these parts.

File Size: 105K
Product Status: In Stock

See other papers presented at SAE 2009 Noise and Vibration Conference and Exhibition, May 2009, St. Charles, IL, USA, Session: Tires

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