A contribution to research of vibrational loads of the vehicle steering system's tie-rod in characteristic exploitation conditions

Abstract

The paper presents and reviews the results of the analysis of vibrational loads of the steering system's tie-rod for passenger car in characteristic exploitation conditions. Experimental data are acquired using the left tie-rod's relative deformation sensor, vertical acceleration sensors at the centres of all four wheels, vertical acceleration sensor at the connecting point between the left front shock absorber and the vehicle body, longitudinal vehicle speed sensor, steering wheel angular displacement sensor and steering wheel torque sensor. Tests are performed during straight line drive and vehicle cornering, with constant and variable vehicle speed and on different types of the roads. On the basis of acquired experimental data, the influences of the inputs from the road roughness (type of the road), the steering wheel torque, the steering wheel angular displacements and vehicle speed on vibrational loads of the steering system's tie-rod loads are analyzed.