Title: Simplified understanding of fundamentals of on-centre stability for large size vehicles

Authors: F. Momiyama, I. Kageyama

Addresses: Technical Laboratory, Hino Motors, Ltd. Japan. ' Department of Mechanical Engineering, College of Industrial Engineering, Nihon University, Japan

Abstract: Large vehicles tend to deviate from a straight path in three modes: slight deviation at low speed, weaving at medium speed, and oscillation at high speed. To understand the modes, a linear 4DOF model consisting of one sprung mass and two unsprung masses at the front and the rear is developed. By analysis of calculations and experiments of vehicle behaviour and eigenvalues, it was found that the instance compliance centres of the front and rear strongly effect the on-centre stability. The further the instance centre is towards the front and the rear, the better the on-centre stability.

Keywords: modelling; numerical analysis; large vehicles; simulation; vehicle stability; vehicle dynamics; heavy vehicles.

DOI: 10.1504/IJHVS.1997.054592

International Journal of Heavy Vehicle Systems, 1997 Vol.4 No.2/3/4, pp.283 - 295

Available online: 18 Jun 2013 *

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