Simulation analysis and experimental study on high frequency friction noise of vehicle V-ribbed belts

Yaochen Shi,Wusheng Tang,Kai Ning,Tianxiang Zhao

doi:10.1177/0020294020967031

Yaochen Shi, Wusheng Tang + Show 2 more

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https://doi.org/10.1177/0020294020967031

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Abstract

In order to improve the service life of the V-ribbed belt and the ride comfort of the vehicle, the friction noise of V-ribbed belt was studied by simulation and experiment. A theoretical model of V-ribbed belts vibration is established, and the conditions for unstable vibration are derived. Based on the theory of mode coupling, the causes of high frequency friction noise of V-ribbed belts are analyzed, and it is considered that the coupling between the vibration of the V-ribbed belts and the natural frequency of the belts’ cross section causes the self-excited vibration of the belt, resulting in high frequency friction noise. Firstly, ANSYS Workbench is used to identify the belts’ cross sections with 3, 4, and 6 wedges, and the natural frequencies of the belts’ cross sections are obtained. Then on the belt drive friction tester, the influences of tension and relative sliding speed on the frequency of high frequency friction noise is studied using a single factor test method, and the frequency response curve of high frequency friction noise is also analyzed. The results of the experiment and simulation show that the transverse vibration of the V-ribbed belts is closely related to the phase and amplitude of the high frequency friction noise, and the changes in tension and relative sliding speed do not affect the frequency of the high frequency friction noise. The frequency of high frequency friction noise has a good consistency with the natural frequency of belts’ cross section, which shows that mode coupling causes the strong self-excited vibration of the V-ribbed belts and the high frequency friction noise. It provides a method and theoretical basis for the control of friction noise.

Highlights

Since the 21st century, with the continuous improvement of vehicle performance requirements and the continuous development of vehicle engine to lightweight and high efficiency, higher requirements have been put forward for the stability, vibration, and noise of the engine front end accessory drive system on vehicle
The high frequency friction noise and the V-ribbed belts’ transverse vibration have high consistency in amplitude and phase changes, which shows that transverse vibration affects the generation of high frequency friction noise
The results of simulation and test show that the frequency of friction noise is close to the natural frequency of cross-section of V-ribbed belt, and the friction noise is caused by self-excited vibration of V-ribbed belt

Summary

Introduction

Since the 21st century, with the continuous improvement of vehicle performance requirements and the continuous development of vehicle engine to lightweight and high efficiency, higher requirements have been put forward for the stability, vibration, and noise of the engine front end accessory drive system on vehicle. As an important part of the system, the vibration and noise characteristics of V-ribbed belt have attracted more and more attention.[1,2,3] As a fully viscoelastic frictional material, for belts in sliding contact with pulley, the combined effect of adhesion and internal damping contributes to friction. Adhesion acts at the contact area, whereas strain develops within the belts leading to the buildup of elastic energy. When the elastic stress exceeds the adhesive force, the breakage of the contact bond takes place and sliding occurs. The adhesion moves to a new area, and so on.[4,5]

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