Vibration Transmissibility on Foot during Controlling and Operating Car Accelerator Pedal

The purpose of this paper is to discuss the vibration transmissibility from a cars body to pedal-pad, and the lower extremity, especially on the foot. The vibration transmissibility will occur when the foot interacts with the pedal-pad once the vehicle engine is turned on. The vibrations transmissibility will cause drivers discomfort, especially on the lower extremity due to fatigue and tiredness of the foot. The relationship between vibration transmissibility with the different sizes pedal-pad to the foot, and whether it can contribute to the foot discomfort during handling and controlling pedal-pad while driving is investigated. The variables are the different sizes of pedal-pad. Data was recorded from foot on three different sizes of pedal-pads. The data was measured in root mean square (r.m.s) unit, of the frequency weighted acceleration (m/s2) for every minute. The result for the foot-transmitted-vibration shows the ratio value of medium sized pedal-pad is greater than 1; compared to small sized and large sized pedal-pads which is less than 1. Analysis of One-way Anova shows that the mean of different sizes of pedal-pad is significant. Tukeyspost-hocwith HSD (Honestly Significant Difference) test on the foot transmitted-vibration proves that the means for medium size pedal-pad is the highest compared with the small and large size pedal-pads.

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