The Trial to Quantify the Feeling of Sound and Vibration (“Kodo-Kan”) for the Motorcycle

It has become clear that a motorcycle rider regards the sound and vibration which occurs from a motorcycle as a feeling of a “Kodo-kan” which is not unpleasant and becomes a part of comfortable nature. In this paper, the physical quantity relevant to a feeling of a beat was extracted from the sound and oscillating measurement data of an idling state for the purpose of quantification of the feeling evaluation of a “Kodo-kan” of the motorcycle, and the feeling evaluation score prediction of a beat was tried from the physical quantity.