Browse Publications Technical Papers 2004-32-0019
2004-09-27

Establishment of Analysis Method for Pulse Feeling of Four-stroke, V-twin Engine, American-type Motorcycles 2004-32-0019

Pulse feeling is an important factor concerning ride pleasure for V-twin engine, American-type motorcycles. Depending on sensory evaluation, estimating the pulse feeling varies widely from person to person. Therefore, it takes a large amount of time to determine specifications. To resolve this problem, a quantitative evaluation method was established. To determine the process, sensory evaluation testing for Japanese and American riders was conducted to verify how they feel the pulse. Both sets of riders drew the same conclusion that seat vibration is the most dominant factor for the pulse feeling. With this in mind, a pulse intensity indicator was introduced into the evaluation indicators for vibration feeling to quantify the seat vibration pulse. Furthermore, a time domain response analysis was applied to a newly created complete motorcycle analysis model. The output conveyed good correlation with the actual data. Consequently, the established method allowed for early prediction of the pulse intensity at the designing stage.

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