Suspension Bushing Effects on Steering Wheel Nibble

This paper is going to describe testing that was performed in order to determine the sensitivity of the vehicle's steering wheel torsional vibrations to the front suspension lower control arm front bushing rubber characteristics. The methods used to induce the vehicle response are described. Subjective response and test data were acquired, and will be presented. Unexpected results were obtained regarding the test procedures and their effects on the test results.