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천세영(Se-Young Chun),성기원(Ki-Won Seong),박해이(Hae-I Park),김인수(In-Soo Kim),강성기(Seong-Ki Kang) 한국기계가공학회 2016 한국기계가공학회지 Vol.15 No.1
The purpose of this study was to ensure the safety of a scooter frame through a structure and vibration analysis according to the tube thickness and weight of the frame of the electric scooter, which is currently being commercialized. According to the results of this study, the largest displacement value of 0.13238㎜ appeared in the 3-㎜ thickness when applying the 100-㎏ load according to the thickness, and 0.026591㎜ and 0.019062㎜ appeared in the 4-㎜ and 5-㎜ thicknesses, respectively. The difference between the 4-㎜ and 5-㎜ values was 0.007529㎜, and it showed low displacement. Thus, the frame of more than 4-㎜ thickness was considered safe. In addition, the experimental result for the natural frequency from Mode 1 to Mode 6 in the vibration analysis was within 601.88㎐. In the 5-㎜ frame, the durability regarding the vibration was recognized as the best due to the appearance of the critical frequency (341.03㎐).