Wan-Suk Yoo, Sang-Do Na and Min-Seok Kim*
The Journal of Mechanical Science and Technology, vol. 25, no. 7, pp.1695-1701, 2011

Abstract : Two passenger cars were driven at several speeds over several road profiles to evaluate the subjective ratings of steering wheel vibration. A 3-axis translational accelerometer was mounted on the steering wheel to measure the acceleration signal transmitted to the hands. Correlations were determined between the measured accelerations and the subjective ratings of 4 expert drivers and 10 general drivers by using Stevens’ power law. The subjective ratings were found to be more highly correlated with the r.m.q. (root mean quad) values of the frequency-weighted acceleration than the r.m.s. (root mean square) values of the frequency-weighted acceleration. Also, the maximum values of r.m.q. (i.e., the component values in the dominant axis) had the highest correlation with the subjective ratings.

Keyword : Human vibration; Objective evaluation; Steering wheel vibration; Stevens’ power law; Subjective evaluation