Title: An evaluation of friction- and impact-induced acoustic behaviour of selected automotive materials, Part I: friction-induced acoustics

Authors: Martin A. Trapp, Yuri Karpenko, Mohamad S. Qatu, Kathleen K. Hodgdon

Addresses: Ford Motor Co, 20800 Oakwood Blvd, Dearborn, MI 48121, USA. ' Ford Motor Co, 20800 Oakwood Blvd, Dearborn, MI 48121, USA. ' Ford Motor Co, 20800 Oakwood Blvd, Dearborn, MI 48121, USA. ' 216 ARL, Penn State, University Park, PA 16802, USA

Abstract: Friction/sliding and rattle/impact induced noises represent a concern for the automotive industry because they affect both the consumer|s quality perception and warranty expense. Automotive engineers judiciously select mating material pairs in an effort to avoid unexpected objectionable noises. This paper presents an evaluation of various materials (polyvinyl chloride (PVC, or interior grade vinyl)) door trim panel covering and painted steel used in the automotive sector and using a friction tester capable of measuring acoustic response to identify noises that can be produced while undergoing frictional sliding. The first part of this paper is designated for friction sliding induced noise.

Keywords: friction induced noise; contact stiffness; Zwicker loudness; friction test apparatus; slider; sound spectra; subjective noise evaluation; automotive materials; friction induced acoustics; vehicle noise; door trim panel covering; painted steel; materials selection; friction sliding.

DOI: 10.1504/IJVNV.2007.016398

International Journal of Vehicle Noise and Vibration, 2007 Vol.3 No.4, pp.355 - 369

Published online: 26 Dec 2007 *

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