Investigation of Vibration and Frequency Transmission to Riders from Electric Kick-Scooters on Various Urban Pavements
摘要
In the urban area, the sidewalk used for cycling and electrical kick-scooters is usually presented in the wide range from asphalt to brick pavements. The current research work is based on the establishing of the vertical vibration and frequency range transferred from driving e-scooters on different type of pavements to the rider. The most used type of the electrical kick-scooter in sharing application without wheels suspension and with pneumatic tire with recommended inflation pressure 3.4 bar (50 psi) is under research. The vibration analysis is performed by measuring the vibration level and performing an additional Fourier Transform spectrum analysis. Measurements were done using a t-sample measurement design and based on a one-sample statistical method for estimating uncertainty in repeated measurements of data processing. In the research, the mechanical impedance of the driver is taken into consideration, allowing for an estimation of the overall driver's comfort. The obtained results allow to define the critical risk of vertical vibration frequency transferred to the human during driving the electrical kick scooter in an urban area on the different pavements, which can help in re-thinking the road infrastructure development for micro-mobility.