Title: Driveline shuffle in rear wheel vehicles

Authors: A. Farshidianfar, M. Ebrahimi, H. Bartlett, M. Moavenian

Addresses: Mechanical Engineering Department, Faculty of Engineering, Ferdowsi University of Mashhad, Vakilbad Boulevard, Mashhad, Iran. Department of Mechanical & Medical Engineering, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK. Department of Mechanical & Medical Engineering, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK. Department of Mechanical & Medical Engineering, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK. Department of Mechanical & Medical Engineering, University of Bradford, Bradford, West Yorkshire, BD7 1DP, UK

Abstract: A vehicular driveline is a lightly damped non-linear dynamic system that is prone to noise and vibration response when subjected to excitation. There are many sources of excitation, such as throttle tip-in and tip-out. Rapid throttle demands are converted to system torsional impulses. Drivers require responsive vehicles. An ill-configured driveline, however, can excite an unwanted low frequency torsional and longitudinal mode of vibration known as shuffle. This paper presents a global model of a vehicle driveline for investigation of the low-frequency response of torsional vibration. Two different methods have been used to find the solution of the equations of motion; the Transfer Matrices Method (TMM), and the step-wise time integration of the Newton-Euler equations of motion. The results from these analyses have been compared with each other, as well as with experimental findings.

Keywords: driveline NVH; low-frequency response; lumped modelling; shuffle.

DOI: 10.1504/IJHVS.2002.001170

International Journal of Heavy Vehicle Systems, 2002 Vol.9 No.1, pp.76-91

Published online: 01 Jul 2003 *

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