Title: An experimental and analytical study of the tractor ride comfort

Authors: A.M.A. Soliman, S.M. Moustafa, F.M. El-Sayed, K.A. Abd El-Gawwad

Addresses: Automotive and Tractor Engineering Department, Faculty of Engineering and Technology, Minia University, Minia, Egypt. ' Automotive and Tractor Engineering Department, Faculty of Engineering and Technology, Minia University, Minia, Egypt. ' Automotive and Tractor Engineering Department, Faculty of Engineering and Technology, Minia University, Minia, Egypt. ' Automotive and Tractor Engineering Department, Faculty of Engineering and Technology, Minia University, Minia, Egypt

Abstract: This paper is concerned with an investigation into the dynamic ride behaviour of a Nasr tractor (type 651) in three degrees of freedom. The tractor itself is treated as a rigid body undergoing vertical, pitch and roll motions. The influence of wheel stiffness is studied with a view to improving ride comfort. A mathematical model for an off-road vehicle (tractor) is developed, and the results it predicts are compared with experimental measurements. The experimental and theoretical results obtained indicate that the mathematical model produces optimistic results for the vertical pitch and roll directions. The effect of wheel stiffness and damping coefficient to improve the tractor ride response are discussed.

Keywords: pitch motion; roll motion; tractor ride comfort; wheel damping; wheel stiffness; dynamic ride behaviour; off-road vehicles; mathematical modelling.

DOI: 10.1504/IJHVS.1995.054541

International Journal of Heavy Vehicle Systems, 1995 Vol.2 No.1, pp.58 - 76

Published online: 18 Jun 2013 *

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